{"title":"Gyraf Audio","description":null,"products":[{"product_id":"gyraf-audio-gyratec-ii","title":"Gyraf Audio Gyratec II","description":"\u003cp\u003eThe \u003cspan style=\"font-weight: bold;\"\u003eGyraf Audio Gyratec II\u003c\/span\u003e is basically an all-tube recording channel, combining a microphone\/line preamp, an equalizer and an optical compressor.  Although solid state electronics is used - in power supply and sidechain - the audio signal never gets touched by anything but tubes, transformers and passives, very different from most “tubed” consumer-type studio gear.\u003cbr\u003e\u003cbr\u003eThe signal flow is simple, all functions are realized with use of only four double triodes - the 5814 military type.  This tube can be substituted with standard ECC82 or 12AU7A types, so you dont have to worry about tube availability for the near future.\u003cbr\u003e\u003cbr\u003eThe input switch selects between “Instrument” (DI for e.g Bass or Guitar) “Line”, “Mic” and “Mic 48V”.  The input impedance is 1K Ohm for the mic input, 10K Ohm for the Line input, and 1M Ohm for the Instrument input.\u003cbr\u003e\u003cbr\u003eThe Microphone and line inputs are of cause floating and transformer balanced - an interface standard used in all serious audio designs.\u003cbr\u003e\u003cbr\u003eThe gain switch sets the level of the incoming signal, before it is passed to the selectable Low-cut filter - a soft 6dB filter at either 15 (off), 80 or 160 Hz.  From here we drive the Equalizer circuit.\u003cbr\u003e\u003cbr\u003eThe Equalizer is a bypassable, three band, variable frequency boost\/cut type build around fixed-Q, passive 6dB filters.  The filters are optimized for gentle corrections, and you should’nt expect them to do anything bizarre like telephone-type of sound or the like; they’re merely for sweetening the tone of your input signal.  Each band has six switchable frequencies, set at spots that we worked quite a bit on getting right.  The low and the high bands are “shelving” type controls, the mid is a “bell” curve.\u003cbr\u003e\u003cbr\u003eNext in line is the Compressor. This is based on the optical principle, that is, the gain reduction element is a light dependent resistor, controlled by a light that changes in proportion to the audio signal. This is also how classics like UA’s LA2, LA3 and LA4 - among many others - work. The controlling input for the compressor is taken either from the input or the output of the equalizer section, in reality making it up to you to decide if you want the compressor before the EQ, or the EQ before the compressor. This is selected with the “Comp” pre\/post switch, which also acts as compressor bypass in it’s middle position.\u003cbr\u003e\u003cbr\u003eThe Compressor is fully adjustable, giving you control over Threshold (at what input level the compressor starts working), Ratio (how much it will do once it starts), Attack time (how fast it will attenuate loud signals) and Release (the amount of time it waits before releasing the attenuation).\u003cbr\u003e\u003cbr\u003eThe working of the compressor - actually the gain reduction introduced in this circuit - is monitored on the large VU-meter.  This is switchable, allowing you to monitor input level, output level, or gain reduction.\u003cbr\u003e\u003cbr\u003eFor most recording tasks this compressor is excellent, but again - like the EQ - you should’nt expect it to do something dramatic.  It is designed with signal integrety in mind, not as an effect.\u003cbr\u003e\u003cbr\u003eThis more or less concludes the Gyratec-II tour, we are now arriving at the output level control, setting the level for the final output driver stage, responsible for driving your further line of equipment.  The output is - like the input - floating transformer balanced to get rid of potentially problematic hum loops.  The output resistance is less than 1K Ohm, so driving all sorts of modern equipment - or even long cable runs - will never be a problem.\u003c\/p\u003e","brand":"Gyraf Audio","offers":[{"title":"Default Title","offer_id":44449243529319,"sku":"14722","price":2130.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/8848\/5479\/files\/gyraf_audio_gyratec_ii.jpg?v=1787088284"},{"product_id":"gyraf-audio-gyratec-iii","title":"Gyraf Audio Gyratec III","description":"\u003cp\u003eThe \u003cspan style=\"font-weight: bold;\"\u003eGyraf Audio Gyratec III\u003c\/span\u003e is a true tube stereo compressor based on the opto VCA principle.  This method - controlling the gain by the means of a light dependent resistor - is not as fast as the vari-mu method, but much more subtle sonically.  This principle is known from eg. the classic Universal audio LA2, LA3 and LA4 compressors..\u003cbr\u003e \u003cbr\u003e We have recently updated the front panel on the G3 - that’s why it dosen’t look like the image in the Resolution review above.  The inside has had minor updates, but roughly speaking it’s kept the same as the old one.\u003cbr\u003e \u003cbr\u003e The controls on the Gyratec III are as follows:\u003cbr\u003e \u003cbr\u003e The input level pot is positioned right after the input transformers, thus allowing you to control the input level, the “drive” for the compressor.\u003cbr\u003e \u003cbr\u003e The Threshold pot controls at what level the compression will set in.  Turning counter-clockwize will select a lower start point, resulting in more compression. When turned fully clockwize, the compression is deactivated.\u003cbr\u003e \u003cbr\u003e The Ratio pot controls the amount of compression in relation to changes in the input level, that is, for the part of the signal that exceeds the threshold value that is set. Setting Ratio fully counter-clockwize will deactivate compression.\u003cbr\u003e \u003cbr\u003e The Attack pot controls the time the compressor takes to react to a rising input level.\u003cbr\u003e \u003cbr\u003e The Release pot controls the amount of time it takes from the input signal falling below threshold, to the gain reduction being returned to unity.\u003cbr\u003e \u003cbr\u003e The Output level pot controls the signal level to the output driver stage and the output.\u003cbr\u003e \u003cbr\u003e The Bypass switch bypasses the unit completely.  The hard way. - A relay simply takes out the active electronics and shorts the input to the output connectors.\u003cbr\u003e \u003cbr\u003e The Gyratec III is floating, transformer balanced in and out. Input impedance \u0026gt; 10K Ohm, output impedance \u0026lt; 1K Ohm.\u003cbr\u003e \u003cbr\u003e It is based on SRPP gain stages with no feedback, using selected 5814 dual triodes for both input and output stages.  These tubes are still fairly easily available today.\u003cbr\u003e \u003cbr\u003e Although semiconductors and opamps are used in this unit, they’re confined to powersupply and sidechain functions.  At no time will your audio pass through anything but transformers, tubes and passives. \u003c\/p\u003e","brand":"Gyraf Audio","offers":[{"title":"Default Title","offer_id":44449243562087,"sku":"14902","price":2415.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/8848\/5479\/files\/gyraf_audio_gyratec_iii.jpg?v=1787088284"},{"product_id":"gyraf-audio-gyratec-ix","title":"Gyraf Audio Gyratec IX Dual Tube Microphone Preamp","description":"\u003cp\u003eThe \u003cspan style=\"font-weight: bold;\"\u003eGyraf Audio Gyratec IX\u003c\/span\u003e is a dual true tube microphone preamp - made like our mother did it.  It’s a simple, yet powerful unit, based on a variable-gain input tube stage driving a tube SRPP output stage. No silicon or other crap in signal path.\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"font-weight: bold;\"\u003eThe controls on the G9 are as follows:\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003eThe input level switch - in eleven steps - sets the raw gain of the first stage, thus allowing you to control the input level, the “drive” for the preamp.\u003cbr\u003e\u003cbr\u003eThe output level pot attenuates signal to the output stage, allowing you to fine-trim the output level going to the next stage in your signal chain\u003cbr\u003e\u003cbr\u003eThe input switch is used to select either Line, Mic, or Mic-with-P48 as input for the unit.  If you insert a jack at the front panel socket marked “Inst.”, this will break the signal selected on the input switch, and in stead have a very-high impedance instrument input - perfect for DI of e.g. bass guitar.\u003cbr\u003e\u003cbr\u003eA gentle highpass filter of either 80 or 160Hz is activated by the “Low-cut” switch, and the unit’s absolute phase can be reversed using the “Phase” switch.\u003cbr\u003e\u003cbr\u003eThe G9 is floating, transformer balanced at line and mic inputs, as well as on output.  Input impedance for the mic input is some 1KOhm, line is some 10KOhm, Inst. \u0026gt;2MOhm, and output impedance is \u0026lt;1K Ohm.\u003cbr\u003e\u003cbr\u003eAlthough semiconductors are used in this unit, they’re confined to power supply functions.  At no time will your audio pass through anything but transformers, tubes and passives. \u003c\/p\u003e","brand":"Gyraf Audio","offers":[{"title":"Default Title","offer_id":44449243594855,"sku":"14904","price":2695.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/8848\/5479\/files\/gyraf_audio_gyratec_ix_5b7f1331-19e5-4270-b4cf-a268365b3651.jpg?v=1787088284"},{"product_id":"gyraf-audio-gyratec-x","title":"Gyraf Audio Gyratec X Stereo Vari-Mu Tube Compressor","description":"\u003cp\u003eThe \u003cspan style=\"font-weight: bold;\"\u003eGyraf Audio Gyratec X\u003c\/span\u003e is a true tube stereo compressor based on the classic variable-mu principle.  This method - controlling the gain by altering quesient current in differential tube pairs - is much faster than the optical method.  The speed is why it was widely used in early limiter devices such as the Fairchild 670 or the Universal Audio 176, but the sonic byproducts of this topology are the main reasons why it is so popular today.\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"font-weight: bold;\"\u003eThe controls on the G10 are as follows:\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003eThe input level pot is positioned right after the input transformers, thus allowing you to control the input level, the “drive” for the compressor.\u003cbr\u003e\u003cbr\u003eThe Threshold pot controls at what level the compression will set in.  Turning counter-clockwize will select a lower start point, resulting in more compression. When turned fully clockwize, the compression is deactivated.\u003cbr\u003e\u003cbr\u003eThe Ratio pot controls the amount of compression in relation to changes in the input level, that is, for the part of the signal that exceeds the threshold value that is set. Setting Ratio fully counter-clockwize will deactivate compression.\u003cbr\u003e\u003cbr\u003eThe Attack pot controls the time the compressor takes to react to a rising input level.\u003cbr\u003e\u003cbr\u003eThe Release pot controls the amount of time it takes from the input signal falling below threshold, to the gain reduction being returned to unity.\u003cbr\u003e\u003cbr\u003eThe Output level pot controls the signal level to the output driver stage and the output.\u003cbr\u003e\u003cbr\u003eThe Bypass switch bypasses the unit completely.  A relay simply takes out the active electronics and shorts the input to the output connectors.\u003cbr\u003e\u003cbr\u003eThe G10 is floating, transformer balanced in and out.  Input impedance \u0026gt; 10K Ohm, output impedance \u0026lt; 1K Ohm.\u003cbr\u003e\u003cbr\u003eIt is based on a very short true-differential signal path from input to output, using very, very tightly selected PCC189 (7ES8) remote-cutoff dual triodes for the VCA stages, and E88CC (6DJ8) low-noise triodes as cathode followers for the output stage drivers.  Both tubes are still fairly easily available throughout the world.\u003cbr\u003e\u003cbr\u003eAlthough semiconductors and opamps are used in this unit, they’re confined to powersupply and sidechain functions.  At no time will your audio pass through anything but transformers, tubes and passives. \u003c\/p\u003e","brand":"Gyraf Audio","offers":[{"title":"Default Title","offer_id":44449243660391,"sku":"14905","price":4295.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/8848\/5479\/files\/gyraf_audio_gyratec_x.jpg?v=1787088284"},{"product_id":"gyraf-audio-gyratec-xiv","title":"Gyraf Audio Gyratec XIV Stereo Passive Tube Equalizer","description":"\u003cp\u003eThe \u003cspan style=\"font-weight: bold;\"\u003eGyraf Audio Gyratec XIV\u003c\/span\u003e is a true tube, all passive, stereo equalizer.  It consist of five bands - each with 11 switchable frequencies, variable “Q”, and boost\/cut selection.  It also has an output level trim, and a “hard” relay bypass control.\u003cbr\u003e \u003cbr\u003e The two channels are linked - controlled with one set of knobs.  The “Q”s (filter sharpnes’es) are rather low when boosting, but higher at cut - approaching a notch on extreme cut settings.  This is both a side-effect of the applied passive technology - as well as quite desireable in situations where sound integrity is the paramount factor.\u003cbr\u003e \u003cbr\u003e The frequencies are selected with special attention to controlability of the midrange area, and with half an frequency-range overlap to the adjacent bands.\u003cbr\u003e \u003cbr\u003e This equalizer is a very extended version of the classic passive inductor\/capacitor type filters, the most famous being the “Pultec” units.  Even though the classic versions are usefull tools in most situations, they are somewhat limited in use due to their simple construction.  Our engeineers wanted - as engeineers tend to do - more of everything.\u003cbr\u003e \u003cbr\u003e So we came up with the parallel-passive design, the G14.\u003cbr\u003e \u003cbr\u003e It is a truely passive design - based on switching a set of inductors and capacitors in and out of circuit - combined with an E88CC (6DJ8) tube-based makeup gain\/output stage. Not a single IC’s or semiconductor in the signal path - this is a real tube unit.\u003cbr\u003e \u003cbr\u003e The inputs and outputs are - off course - transformer balanced, for trouble-free interfacing to the outer world.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eInput impedance - around 5K Ohms, transformer balanced\u003c\/li\u003e\n\u003cli\u003eOutput impedance - ~1K Ohms, transformer balanced\u003c\/li\u003e\n\u003cli\u003eMax boost\/cut - ~10-12dB, depending on “Q” setting\u003c\/li\u003e\n\u003cli\u003eGain trim ~+6 - -20dB\u003c\/li\u003e\n\u003cli\u003eEach band individually hard-bypassable\u003c\/li\u003e\n\u003cli\u003eChannel tracking within ~1dB\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFrequency markings are:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLow: 35-48-60-70-80-100-120-160-190-220-270Hz\u003c\/li\u003e\n\u003cli\u003eLow mid: 180-230-280-330-400-430-490-550-590-650-750Hz\u003c\/li\u003e\n\u003cli\u003eMid: 500-570-700-800-900-1K-1K1-1K3-1K5-1K8-2K1 Hz\u003c\/li\u003e\n\u003cli\u003eHigh mid: 950-1K2-1K4-1K7-2K-2K5-3K-3K5-4K2-5K-6K3 Hz\u003c\/li\u003e\n\u003cli\u003eHigh: 4K5-5K6-6K5-7K8-9K1-12K-14K-16K-18K-20K-22KHz\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Gyraf Audio","offers":[{"title":"Default Title","offer_id":44449254080615,"sku":"14723","price":3900.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/8848\/5479\/files\/gyraf_audio_gyratec_xiv.jpg?v=1787088328"},{"product_id":"gyraf-audio-gyratec-xiv-demo-deal","title":"Gyraf Audio Gyratec XIV (Demo Deal)","description":"The \u003cspan style=\"font-weight: bold;\"\u003eGyraf Audio Gyratec XIV\u003c\/span\u003e is a true tube, all passive, stereo equalizer. It consist of five bands - each with 11 switchable frequencies, variable “Q”, and boost\/cut selection. It also has an output level trim, and a “hard” relay bypass control.\u003cbr\u003e \u003cbr\u003e The two channels are linked - controlled with one set of knobs. The “Q”s (filter sharpnes’es) are rather low when boosting, but higher at cut - approaching a notch on extreme cut settings. This is both a side-effect of the applied passive technology - as well as quite desireable in situations where sound integrity is the paramount factor.\u003cbr\u003e \u003cbr\u003e The frequencies are selected with special attention to controlability of the midrange area, and with half an frequency-range overlap to the adjacent bands.\u003cbr\u003e \u003cbr\u003e This equalizer is a very extended version of the classic passive inductor\/capacitor type filters, the most famous being the “Pultec” units. Even though the classic versions are usefull tools in most situations, they are somewhat limited in use due to their simple construction. Our engeineers wanted - as engeineers tend to do - more of everything.\u003cbr\u003e \u003cbr\u003e So we came up with the parallel-passive design, the G14.\u003cbr\u003e \u003cbr\u003e It is a truely passive design - based on switching a set of inductors and capacitors in and out of circuit - combined with an E88CC (6DJ8) tube-based makeup gain\/output stage. Not a single IC’s or semiconductor in the signal path - this is a real tube unit.\u003cbr\u003e \u003cbr\u003e The inputs and outputs are - off course - transformer balanced, for trouble-free interfacing to the outer world.\u003cbr\u003e \u003cul\u003e\n\u003cli\u003eInput impedance - around 5K Ohms, transformer balanced\u003c\/li\u003e\n\u003cli\u003eOutput impedance - ~1K Ohms, transformer balanced\u003c\/li\u003e\n\u003cli\u003eMax boost\/cut - ~10-12dB, depending on “Q” setting\u003c\/li\u003e\n\u003cli\u003eGain trim ~+6 - -20dB\u003c\/li\u003e\n\u003cli\u003eEach band individually hard-bypassable\u003c\/li\u003e\n\u003cli\u003eChannel tracking within ~1dB\u003c\/li\u003e\n\u003c\/ul\u003e \u003cbr\u003e \u003cspan style=\"font-weight: bold;\"\u003eFrequency markings are:\u003c\/span\u003e\u003cbr\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cspan style=\"font-weight: bold;\"\u003eLow: \u003c\/span\u003e35-48-60-70-80-100-120-160-190-220-270Hz\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-weight: bold;\"\u003eLow mid: \u003c\/span\u003e180-230-280-330-400-430-490-550-590-650-750Hz\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-weight: bold;\"\u003eMid:\u003c\/span\u003e 500-570-700-800-900-1K-1K1-1K3-1K5-1K8-2K1 Hz\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-weight: bold;\"\u003eHigh mid:\u003c\/span\u003e 950-1K2-1K4-1K7-2K-2K5-3K-3K5-4K2-5K-6K3 Hz\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-weight: bold;\"\u003eHigh:\u003c\/span\u003e 4K5-5K6-6K5-7K8-9K1-12K-14K-16K-18K-20K-22KHz\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Gyraf Audio","offers":[{"title":"Default Title","offer_id":44449363165287,"sku":"15412","price":2750.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/8848\/5479\/files\/gyraf_audio_gyratec_xiv_1.jpg?v=1787088715"},{"product_id":"gyraf-audio-gyratec-ii-demo-deal","title":"Gyraf Audio Gyratec II (Demo Deal)","description":"\u003cp\u003eThe \u003cspan style=\"font-weight: bold;\"\u003eGyraf Audio Gyratec II\u003c\/span\u003e is basically an all-tube recording channel, combining a microphone\/line preamp, an equalizer and an optical compressor.  Although solid state electronics is used - in power supply and sidechain - the audio signal never gets touched by anything but tubes, transformers and passives, very different from most “tubed” consumer-type studio gear.\u003cbr\u003e\u003cbr\u003eThe signal flow is simple, all functions are realized with use of only four double triodes - the 5814 military type.  This tube can be substituted with standard ECC82 or 12AU7A types, so you dont have to worry about tube availability for the near future.\u003cbr\u003e\u003cbr\u003eThe input switch selects between “Instrument” (DI for e.g Bass or Guitar) “Line”, “Mic” and “Mic 48V”.  The input impedance is 1K Ohm for the mic input, 10K Ohm for the Line input, and 1M Ohm for the Instrument input.\u003cbr\u003e\u003cbr\u003eThe Microphone and line inputs are of cause floating and transformer balanced - an interface standard used in all serious audio designs.\u003cbr\u003e\u003cbr\u003eThe gain switch sets the level of the incoming signal, before it is passed to the selectable Low-cut filter - a soft 6dB filter at either 15 (off), 80 or 160 Hz.  From here we drive the Equalizer circuit.\u003cbr\u003e\u003cbr\u003eThe Equalizer is a bypassable, three band, variable frequency boost\/cut type build around fixed-Q, passive 6dB filters.  The filters are optimized for gentle corrections, and you should’nt expect them to do anything bizarre like telephone-type of sound or the like; they’re merely for sweetening the tone of your input signal.  Each band has six switchable frequencies, set at spots that we worked quite a bit on getting right.  The low and the high bands are “shelving” type controls, the mid is a “bell” curve.\u003cbr\u003e\u003cbr\u003eNext in line is the Compressor. This is based on the optical principle, that is, the gain reduction element is a light dependent resistor, controlled by a light that changes in proportion to the audio signal. This is also how classics like UA’s LA2, LA3 and LA4 - among many others - work. The controlling input for the compressor is taken either from the input or the output of the equalizer section, in reality making it up to you to decide if you want the compressor before the EQ, or the EQ before the compressor. This is selected with the “Comp” pre\/post switch, which also acts as compressor bypass in it’s middle position.\u003cbr\u003e\u003cbr\u003eThe Compressor is fully adjustable, giving you control over Threshold (at what input level the compressor starts working), Ratio (how much it will do once it starts), Attack time (how fast it will attenuate loud signals) and Release (the amount of time it waits before releasing the attenuation).\u003cbr\u003e\u003cbr\u003eThe working of the compressor - actually the gain reduction introduced in this circuit - is monitored on the large VU-meter.  This is switchable, allowing you to monitor input level, output level, or gain reduction.\u003cbr\u003e\u003cbr\u003eFor most recording tasks this compressor is excellent, but again - like the EQ - you should’nt expect it to do something dramatic.  It is designed with signal integrety in mind, not as an effect.\u003cbr\u003e\u003cbr\u003eThis more or less concludes the Gyratec-II tour, we are now arriving at the output level control, setting the level for the final output driver stage, responsible for driving your further line of equipment.  The output is - like the input - floating transformer balanced to get rid of potentially problematic hum loops.  The output resistance is less than 1K Ohm, so driving all sorts of modern equipment - or even long cable runs - will never be a problem.\u003c\/p\u003e","brand":"Gyraf Audio","offers":[{"title":"Default Title","offer_id":44449479884903,"sku":"20502","price":2095.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/8848\/5479\/files\/gyraf_audio_gyratec_ii_1_b554d670-1195-4164-a43e-ae9ca7ab786b.jpg?v=1787089117"},{"product_id":"gyraf-audio-gyratec-xxi-magneto-dynamic-infundibulum-used","title":"Gyraf Audio Gyratec XXI Magneto-Dynamic Infundibulum (Used)","description":"The Ultimate Passive Analogue Clipper","brand":"Gyraf Audio","offers":[{"title":"Default Title","offer_id":44449641988199,"sku":"38356","price":3050.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/8848\/5479\/files\/used_38356_1_37e4315b-803b-4acd-8410-4ed48437c74a.jpg?v=1787089800"},{"product_id":"gyraf-audio-gyratec-g20-used","title":"Gyraf Audio Gyratec G20 (Used)","description":"\u003cp\u003eGyratec G20 is an all-tube mono compressor, based on the classic  variable-mu principle. Controlling the volume by a changing current in  differential tube pairs is a much faster way than the electro-optical  principle. Speed was the main reason for using it in the first limiters  such as Fairchild 670 or Universal Audio 176, but the sound  characteristics of this circuit are the main reasons for their  popularity.\u003c\/p\u003e\r\n\u003cp\u003e \u003c\/p\u003e\r\n\u003cp\u003e\u003cstrong\u003eGyratec 20 controls:\u003c\/strong\u003e\u003c\/p\u003e\r\n\u003cp\u003eThe input control allows you to control the input level and thus the  \"drive\" of the preamplifier.\u003c\/p\u003e\r\n\u003cp\u003eThe Threshold knob sets the threshold of  compression. Rotated counterclockwise, a lower threshold can be  established, which leads to more compression. Fully clockwise the  compression is disabled.\u003c\/p\u003e\r\n\u003cp\u003eRatio control allows adjustment of  compression, depending on the input level. Fully clockwise, the  compression is disabled.\u003c\/p\u003e\r\n\u003cp\u003eAttack and release times can be adjusted with  the corresponding controls.\u003c\/p\u003e\r\n\u003cp\u003eThe output knob controls the level of the  output signal directly.\u003c\/p\u003e\r\n\u003cp\u003eThe signal can be bypassed via relay.  The  inputs and outputs are transformer-balanced and ungrounded. The input  impedance is \u0026gt; 10 kΩ, output is \u0026lt;1  kΩ.  Based on a very short,  balanced signal path from input to output, carefully selected PCC189  (7ES8) dual-triodes are used for the amplifier stages, whereas low-noise  triodes E88CC (6DJ8) can be found as cathode-pursuers at the output  stage. Both types are very easily available.  The semiconductors and  op-amps which are built in the G20 serve only the power supply and the  side-chain function. At no time does the audio signal passes anything else but  transformers, tubes and passive components. So we're talking - just as  we do with all other Gyraf devices - about REAL tube sound.\u003c\/p\u003e","brand":"Gyraf Audio","offers":[{"title":"Default Title","offer_id":44449653456999,"sku":"37259","price":1515.25,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/8848\/5479\/files\/gyraf_g20_used_pb_c2c2f33e-3664-437d-82ba-4b9a1c2adf73.jpg?v=1787089851"},{"product_id":"gyraf-audio-g23-s-equalizer","title":"Gyraf Audio G23-S Equalizer","description":"\u003cp\u003eThe \u003cstrong\u003eGyraf Audio G23-S\u003c\/strong\u003e is an updated version of Gyraf Audio G23 – now including an option for selection between all-solid-state technology or classic tube circuitry. Gyraf Audio added an additional step to the bypass switch - marked \"S\" - which instantly shifts you into solid-state land: Inputs become differential instrumentation type in stead of transformer, active equalizer stage gets controlled by a state-of-the-art opamp, and output stage gets servo-balanced in stead of tube\/transformer drive.\u003c\/p\u003e\r\n\u003cp\u003eWhat sets it apart from all other EQ designs is that Gyraf Audio designed it around a highly linear 1dB\/oct slope filter, so that rotating the control will adjust an almost ruler-straight response curve, to a maximum steepness of 1dB\/Oct. So what you acheive in the 1dB\/Oct function is to \"spread out\" or distribute the \"needed\" phase roll across the whole spectrum, meaning that at any given interval, only minute amounts of group delay is apparent. In total, it allows quite some correction without sounding \"Eq'ed\". And because you'd occasionally want to correct outer ends of spectrum, they have added a gentle Baxandall tone control, shelving lows and highs, wide-Q bell mid, each at three selectable frequencies, that they spent quite some time optimizing.\u003c\/p\u003e","brand":"Gyraf Audio","offers":[{"title":"Default Title","offer_id":44450425372775,"sku":"116553","price":3955.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/8848\/5479\/files\/gyraf-g23-s_116553_1_4b1df157-7e9b-43c6-bdc0-b73b37a82cba.jpg?v=1787093011"},{"product_id":"gyraf-g22-dual-stero-vari-mu-compressor","title":"Gyraf G22 Dual Stero Vari-Mu Compressor","description":"\u003cp\u003eThe \u003cstrong\u003eGyraf G22 Dual Stero Vari-Mu Compressor\u003c\/strong\u003e is an updated, dual version of the venerable G10 vari-mu compressor. It can be set to dual-mono, but still keeps a backwards-compatibility “G10 mode” where one set of knobs controls real stereo, preferable during mastering.\u003c\/p\u003e\r\n\r\n\u003cp\u003eWith a classic design the G22 will fit into every studio. Two handles make transportation easy, and the material of the switches  provides a tactile experience.\u003c\/p\u003e\r\n\r\n\u003cp\u003eA simple sidechain high-pass filter has been added (located on the bypass switch) cutting off compressor keying below ca 80 Hz at a slope of 6 dB\/oct. This is to keep pumping artifacts under control when working fast in bass-heavy material. Linking\/dynamic interaction between channels in dual-mode can be set continuously from none to full by the Vari-link control knob - enabling you to dial in a difference in channel processing, and then varying difference amount in a simple mode. Bypass is, off course, hard and relay-based. When bypassed, the G22 acts only like an additional piece of cable.\u003c\/p\u003e\r\n\r\n\u003cp\u003eThe audio part of the circuit is a faithful reproduction of the G10, Gyraf's flagship for more than 15 years - if it works, don't fix it. The only minor change is a re-bias of the output stage, which allows some 4 - 5 dB more headroom while preserving the original stage's soft transition into overload.\u003c\/p\u003e\r\n\r\n\u003cp\u003eThe G22 is a dual-channel unit – allowing you to use it as two compressors on two different signal sources. It’s still a fully stereo-linked compressor with all the freedom and ease of control this gives you.\u003c\/p\u003e","brand":"Gyraf Audio","offers":[{"title":"Default Title","offer_id":44450434154599,"sku":"79781","price":5165.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/8848\/5479\/files\/gyraf-g22_79781_1_428ce6d1-43f7-4130-a00a-d21f4e6ad9c8.jpg?v=1787093048"},{"product_id":"gyraf-audio-gyratec-21-magneto-dynamic-infundibulum","title":"Gyraf Audio Gyratec 21 Magneto-Dynamic Infundibulum","description":"\u003cp\u003eThe \u003cstrong\u003eGyraf Audio Gyratec 21 Magneto-Dynamic Infundibulum\u003c\/strong\u003e is kinda an update on the G14 parallel-passive EQ – the parallel topology enables multi-band control without running into the traditional problems in multi-banding.\u003c\/p\u003e\r\n\r\n\u003cp\u003eWith a classic design the G21 will fit into every studio. The two handles make it easy to transport or move the product, and the material of the switches is a must feel experience.\u003c\/p\u003e\r\n\r\n\u003cp\u003eUse carefully - this is in no way a fire-and-forget gadget: Multiple types of interacting nonlinearities are at large, even a few in macroscopic time-domain because of components heating and temperature coefficients. Changing something in one band will sure as hell result in something else showing up somewhere else. Feels organic in that. As we all know, clipping generates harmonics - there's simply no way around that. But what you do with those harmonics will make a lot of difference. The beauty is here, that as the clipping is done at the remote end of a frequency selective channel, the clipping byproducts (harmonics, at frequencies multiple times the clipped) have a hard time getting back out and into the audio, because they are now no more in the right frequency range. And other than the three bands of clipping, there is an overall clipper that can be set for linear (white), pink -3 dB\/oct or red -5 dB\/oct emphasis - enabling gradually lower \"threshold\" at higher frequencies. Then there's a fine-trim for output level and a 18 dB\/oct lowcut at the input.\u003c\/p\u003e\r\n\r\n\u003cp\u003eYou want complete control and predictability in the clipping process - and want to preserve signal integrity as far as possible. In the passive domain, we are more or less restricted to what could be described as 'first order' non-linearities - we do not convolute clipping on top of clipping (i.e. distortion on the distortion products) like it would most often happen in an active circuit under feedback control. It's hard enough to navigate the nonlinear processes already.\u003c\/p\u003e","brand":"Gyraf Audio","offers":[{"title":"Default Title","offer_id":44450435072103,"sku":"33533","price":5825.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/8848\/5479\/files\/gyraf-g21_33533_1_4053e161-e913-4039-9457-b740090b8c9d.jpg?v=1787093052"},{"product_id":"gyraf-audio-g24-passive-compressor","title":"Gyraf Audio G24 Passive Compressor","description":"\u003cp\u003eThe \u003cstrong\u003eGyraf Audio G24 Passive Compressor\u003c\/strong\u003e is an entirely new type of stereo compressor – aimed at mix and mastering functions. Like its sister and predecessor, the G23 EQ, it’s for those situations where you have a mix that is already nearly-perfect balanced, but you want to control some part of its dynamic without messing up the overall definition.\u003c\/p\u003e\r\n\r\n\u003cp\u003eGentleness and subtlety were again the main design targets here: this compressor is based on a carefully designed fully passive signal path, consisting of one metal film resistor, one audio transformer and one photoresistor per channel. Most of its intricate control system was conceived from scratch, following a stringent “what-if” paradigm of research, trial and error.\u003c\/p\u003e","brand":"Gyraf Audio","offers":[{"title":"Default Title","offer_id":44450435137639,"sku":"116554","price":4515.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/8848\/5479\/files\/gyraf-g24_116554_1_d2d82b85-2a19-40f2-bfc4-8314e56f2c0d.jpg?v=1787093052"},{"product_id":"gyraf-audio-g14-s-parallel-passive-stereo-tube-equalizer","title":"Gyraf Audio G14-S Parallel-Passive Stereo Tube Equalizer","description":"\u003cp\u003eThe \u003cstrong\u003eGyraf Audio G14-S\u003c\/strong\u003e is a passive stereo equalizer, equipped with two different topologies for makeup gain and interfacing. The filter itself consist of five bands – each with 11 switchable frequencies, continuous variable “Q”, and individual boost\/bypass\/cut selection. The unit has an overall output level “TRIM”, and a hard relay bypass serving as reference for your work.\u003c\/p\u003e\r\n\u003cp\u003eThe stereo channels are linked – controlled with one set of knobs, so you won’t ever have to match settings of two channels. The “Q”s, filter sharpness, are rather low when boosting, but higher at cut – approaching notch behavior at extreme cut settings. This is both a side-effect of the applied passive technology – as well as quite desirable in situations where sound integrity is the paramount factor.\u003c\/p\u003e\r\n\u003cp\u003eFrequencies for the five bands have been selected with special attention to controlability of the midrange area, with approximately half a frequency-range overlap to the adjacent bands.\u003c\/p\u003e\r\n\u003cp\u003eThis equalizer technology is a very extended version of the classic passive inductor\/capacitor type filter. Although the classic versions are very useful tools in many situations, they often feel somewhat limited due to their simple construction and coverage. Gyraf's engineers wanted – as engineers tend to do – much more of everything. So Gyraf came up with the parallel-passive design, the G14.\u003c\/p\u003e\r\n\u003cp\u003eG14-S is based on this truly passive design – switching a set of inductors and capacitors in and out of circuit. This passive filter set is then matched with input\/output interfacing for trouble-free interfacing to the outer world, and a gain stage to make up for the approximate 20dB passive loss in the filters.\u003c\/p\u003e\r\n\u003cp\u003eFor this, G14-S features a selection of two different technologies – at a flick of the bypass switch: When set to “IN”, you have the traditional and much-loved selection of tube makeup gain based on 6H23n (E88CC\/6922) tubes combined with transformer-balanced input and output interfacing.\u003c\/p\u003e\r\n\u003cp\u003eIf this gets to be too much of a good thing, you switch the bypass to “S” and everything but the filter and controls are swapped with entirely different technology: The inputs are now integrated balanced differential receivers, amplification is handled by a high-grade opamp, and output is driven by state-of-the-art active servo balancing circuits. Two entirely different personalities in one box.\u003c\/p\u003e\r\n\u003cp\u003eAn important feature is that the original signal path of the classic G14 is fully preserved in the G14-S: Only parts relating to the solid-state path has been added, in “tube mode”, the G14S\u003c\/p\u003e\r\n\r\n\u003cp\u003eFrequency markings are:\u003c\/p\u003e\r\n\u003cul\u003e\r\n\u003cli\u003eLow: 35-48-60-70-80-100-120-160-190-220-270Hz\u003c\/li\u003e\r\n\u003cli\u003eLow mid: 180-230-280-330-400-430-490-550-590-650-750Hz\u003c\/li\u003e\r\n\u003cli\u003eMid: 500-570-700-800-900-1K-1K1-1K3-1K5-1K8-2K1 Hz\u003c\/li\u003e\r\n\u003cli\u003eHigh mid: 950-1K2-1K4-1K7-2K-2K5-3K-3K5-4K2-5K-6K3 Hz\u003c\/li\u003e\r\n\u003cli\u003eHigh: 4K5-5K6-6K5-7K8-9K1-12K-14K-16K-18K-20K-22KHz\u003c\/li\u003e\r\n\u003c\/ul\u003e","brand":"Gyraf Audio","offers":[{"title":"Default Title","offer_id":44450621128807,"sku":"145307","price":5225.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/8848\/5479\/files\/gyraf-g14-s_145307_1_99ed3fb4-26d2-46dd-a9e2-40fb6b9fa89b.jpg?v=1787093794"},{"product_id":"gyraf-audio-gyratec-ix-dual-tube-microphone-preamp-demo-deal","title":"Gyraf Audio Gyratec IX Dual Tube Microphone Preamp (Demo Deal)","description":"\u003cp\u003eThe \u003cspan style=\"font-weight: bold;\"\u003eGyraf Audio Gyratec IX\u003c\/span\u003e is a dual true tube microphone preamp - made like our mother did it.  It’s a simple, yet powerful unit, based on a variable-gain input tube stage driving a tube SRPP output stage. No silicon or other crap in signal path.\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"font-weight: bold;\"\u003eThe controls on the G9 are as follows:\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003eThe input level switch - in eleven steps - sets the raw gain of the first stage, thus allowing you to control the input level, the “drive” for the preamp.\u003cbr\u003e\u003cbr\u003eThe output level pot attenuates signal to the output stage, allowing you to fine-trim the output level going to the next stage in your signal chain\u003cbr\u003e\u003cbr\u003eThe input switch is used to select either Line, Mic, or Mic-with-P48 as input for the unit.  If you insert a jack at the front panel socket marked “Inst.”, this will break the signal selected on the input switch, and in stead have a very-high impedance instrument input - perfect for DI of e.g. bass guitar.\u003cbr\u003e\u003cbr\u003eA gentle highpass filter of either 80 or 160Hz is activated by the “Low-cut” switch, and the unit’s absolute phase can be reversed using the “Phase” switch.\u003cbr\u003e\u003cbr\u003eThe G9 is floating, transformer balanced at line and mic inputs, as well as on output.  Input impedance for the mic input is some 1KOhm, line is some 10KOhm, Inst. \u0026gt;2MOhm, and output impedance is \u0026lt;1K Ohm.\u003cbr\u003e\u003cbr\u003eAlthough semiconductors are used in this unit, they’re confined to power supply functions.  At no time will your audio pass through anything but transformers, tubes and passives. \u003c\/p\u003e","brand":"Gyraf Audio","offers":[{"title":"Default Title","offer_id":44450923315303,"sku":"191210","price":2239.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/8848\/5479\/files\/gyraf_audio_gyratec_ix_6c659cb4-1d39-4094-875d-642f7fe6b118.jpg?v=1787095116"},{"product_id":"gyraf-audio-g25-vocalshape-recording-channel","title":"Gyraf Audio G25 VocalShape Recording Channel","description":"\u003cp\u003eThe \u003cstrong\u003eGyraf Audio G25 VocalShape\u003c\/strong\u003e is an elaborate all-in-one box for vocal recording. It is an all-tube unit, consisting of a tube preamplifier stage followed by a filter and tube equalizer section fed into a vari-mu compressor which in turn drives the output stage containing a single band of passive frequency-selective clipping. Every and all parameters optimized for – and only for – recording vocals. All active functions, all amplification stages processing your signal are based on old-fashioned thermionic valves.\u003c\/p\u003e\r\n\r\n\u003ch3 id=\"toc_0\"\u003ePREAMPLIFIER\u003c\/h3\u003e\r\n\r\n\u003cp\u003eThe topology of the G25 preamplifier is very much like the classic G9, in a version optimized for high-gain frame-grid tubes (6N23P\/E88CC). The INPUT Switch selects between Line, Mic, and Mic+P48. The GAIN switch controls the amount of gain applied in 4 dB steps. Mic\/Line inputs are floating transformer-balanced with a line load of ~10 kohms and a mic load of ~2 kohms. 48 phantom power can be switched on only to the mic input for powering condenser microphones.\u003c\/p\u003e\r\n\r\n\u003cp\u003eThe Instrument input jack on the front is a high-Z input that simply interrupts the connection to back panel Mic\/Line connectors when a jack is inserted. The addition of this Instrument input was possible without in any way compromising the units usability for vocal recordings – it’s a left-over from early revisions that is kept in place because of popular demand.\u003c\/p\u003e\r\n\r\n\u003cp\u003eMic gain maxes at a bit more than +70 dB - plenty for your old beaten-up SM7. Line gain is generally some 27 dB under mic gain setting with Instrument input gain some 17 dB under mic. With all knobs set to 12 o’clock we see some +48 dB gain in mic mode, +21 dB in line mode.\u003c\/p\u003e\r\n\r\n\u003ch3 id=\"toc_1\"\u003eEQUALIZER\u003c\/h3\u003e\r\n\r\n\u003cp\u003eThe EQ section consists of a first-order HPF @50 Hz or 120 Hz, a High\/Low shelving symmetric boost\/cut Bax at 6 dB\/oct combined with the Linear Tilt circuit from the G23 – adjustable between ±0 and 1 dB\/Oct at its extremes.\u003c\/p\u003e\r\n\r\n\u003ch3 id=\"toc_2\"\u003eVARI-MU COMPRESSOR\u003c\/h3\u003e\r\n\r\n\u003cp\u003eCopied from the G10, off course. Fixed 20ms Attack, variable release 50ms - 1.6sec, Threshold and Ratio functions are combined into one knob labeled unified Drive. Gain reduction read-out on meter.\u003c\/p\u003e\r\n\r\n\u003ch3 id=\"toc_3\"\u003eDE-RESONANCE\/CLIPPER\u003c\/h3\u003e\r\n\r\n\u003cp\u003eThis stage, which is integrated into the unit’s output transformer, after the “Output Drive” control pot, is a frequency-selective clipping circuit. The topology is a simplified version of the G21 Infundibulum – with a handful of switchable frequency ranges selected for their usefulness for helping vocal trouble. The ALL position is simple full-spectrum schottky diode clipping.\u003c\/p\u003e","brand":"Gyraf Audio","offers":[{"title":"Default Title","offer_id":44451014705255,"sku":"212804","price":4395.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/8848\/5479\/files\/gyraf-g25_212804_1_4879058d-ab4a-4b56-9475-773acaa2c960.jpg?v=1787095499"},{"product_id":"gyraf-audio-g25-vocalshape-recording-channel-demo-deal","title":"Gyraf Audio G25 VocalShape Recording Channel (Demo Deal)","description":"\u003cp\u003eThe \u003cstrong\u003eGyraf Audio G25 VocalShape\u003c\/strong\u003e is an elaborate all-in-one box for vocal recording. It is an all-tube unit, consisting of a tube preamplifier stage followed by a filter and tube equalizer section fed into a vari-mu compressor which in turn drives the output stage containing a single band of passive frequency-selective clipping. Every and all parameters optimized for – and only for – recording vocals. All active functions, all amplification stages processing your signal are based on old-fashioned thermionic valves.\u003c\/p\u003e\n\n\u003ch3 id=\"toc_0\"\u003ePREAMPLIFIER\u003c\/h3\u003e\n\n\u003cp\u003eThe topology of the G25 preamplifier is very much like the classic G9, in a version optimized for high-gain frame-grid tubes (6N23P\/E88CC). The INPUT Switch selects between Line, Mic, and Mic+P48. The GAIN switch controls the amount of gain applied in 4 dB steps. Mic\/Line inputs are floating transformer-balanced with a line load of ~10 kohms and a mic load of ~2 kohms. 48 phantom power can be switched on only to the mic input for powering condenser microphones.\u003c\/p\u003e\n\n\u003cp\u003eThe Instrument input jack on the front is a high-Z input that simply interrupts the connection to back panel Mic\/Line connectors when a jack is inserted. The addition of this Instrument input was possible without in any way compromising the units usability for vocal recordings – it’s a left-over from early revisions that is kept in place because of popular demand.\u003c\/p\u003e\n\n\u003cp\u003eMic gain maxes at a bit more than +70 dB - plenty for your old beaten-up SM7. Line gain is generally some 27 dB under mic gain setting with Instrument input gain some 17 dB under mic. With all knobs set to 12 o’clock we see some +48 dB gain in mic mode, +21 dB in line mode.\u003c\/p\u003e\n\n\u003ch3 id=\"toc_1\"\u003eEQUALIZER\u003c\/h3\u003e\n\n\u003cp\u003eThe EQ section consists of a first-order HPF @50 Hz or 120 Hz, a High\/Low shelving symmetric boost\/cut Bax at 6 dB\/oct combined with the Linear Tilt circuit from the G23 – adjustable between ±0 and 1 dB\/Oct at its extremes.\u003c\/p\u003e\n\n\u003ch3 id=\"toc_2\"\u003eVARI-MU COMPRESSOR\u003c\/h3\u003e\n\n\u003cp\u003eCopied from the G10, off course. Fixed 20ms Attack, variable release 50ms - 1.6sec, Threshold and Ratio functions are combined into one knob labeled unified Drive. Gain reduction read-out on meter.\u003c\/p\u003e\n\n\u003ch3 id=\"toc_3\"\u003eDE-RESONANCE\/CLIPPER\u003c\/h3\u003e\n\n\u003cp\u003eThis stage, which is integrated into the unit’s output transformer, after the “Output Drive” control pot, is a frequency-selective clipping circuit. The topology is a simplified version of the G21 Infundibulum – with a handful of switchable frequency ranges selected for their usefulness for helping vocal trouble. The ALL position is simple full-spectrum schottky diode clipping.\u003c\/p\u003e","brand":"Gyraf Audio","offers":[{"title":"Default Title","offer_id":44451143090279,"sku":"461314","price":3659.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/8848\/5479\/files\/gyraf-g25_212804_1.jpg?v=1787096006"},{"product_id":"gyraf-audio-g23-s-equalizer-demo-deal","title":"Gyraf Audio G23-S Equalizer (Demo Deal)","description":"\u003cp\u003eThe \u003cstrong\u003eGyraf Audio G23-S\u003c\/strong\u003e is an updated version of Gyraf Audio G23 – now including an option for selection between all-solid-state technology or classic tube circuitry. Gyraf Audio added an additional step to the bypass switch - marked \"S\" - which instantly shifts you into solid-state land: Inputs become differential instrumentation type in stead of transformer, active equalizer stage gets controlled by a state-of-the-art opamp, and output stage gets servo-balanced in stead of tube\/transformer drive.\u003c\/p\u003e\n\u003cp\u003eWhat sets it apart from all other EQ designs is that Gyraf Audio designed it around a highly linear 1dB\/oct slope filter, so that rotating the control will adjust an almost ruler-straight response curve, to a maximum steepness of 1dB\/Oct. So what you acheive in the 1dB\/Oct function is to \"spread out\" or distribute the \"needed\" phase roll across the whole spectrum, meaning that at any given interval, only minute amounts of group delay is apparent. In total, it allows quite some correction without sounding \"Eq'ed\". And because you'd occasionally want to correct outer ends of spectrum, they have added a gentle Baxandall tone control, shelving lows and highs, wide-Q bell mid, each at three selectable frequencies, that they spent quite some time optimizing.\u003c\/p\u003e","brand":"Gyraf Audio","offers":[{"title":"Default Title","offer_id":44451263512679,"sku":"484638","price":2999.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/8848\/5479\/files\/gyraf-g23-s_116553_1.jpg?v=1787096536"}],"url":"https:\/\/vintageking1.myshopify.com\/collections\/gyraf-audio.oembed","provider":"VINTAGE KING AUDIO","version":"1.0","type":"link"}