{"title":"Interphase Audio","description":null,"products":[{"product_id":"interphase-audio-nducr-4-band-inductive-eq","title":"Interphase Audio NDUCR 4-Band Inductive EQ","description":"\u003cp\u003eThe \u003cstrong\u003eInterphase Audio NDUCR\u003c\/strong\u003e is a 2-channel 19\" rack-mount unit with 4 inductive EQ bands per channel. It's designed to add color to your signal, and silky smooth color that is. The NDUCER has four bands with switchable, overlapping frequencies:\u003c\/p\u003e\r\n\u003cul\u003e\r\n\u003cli\u003eLow (Hz): 50, 80, 100, 150, 300, 600\u003c\/li\u003e\r\n\u003cli\u003eLow Mid (Hz): 125, 250, 500, 1K, 2K, 4K\u003c\/li\u003e\r\n\u003cli\u003eHi Mid (kHz): 1.5, 3, 5, 6, 7, 8\u003c\/li\u003e\r\n\u003cli\u003eHigh (kHz): 8, 9, 10, 12, 14, 16\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003cp\u003eThe inductor based circuit is considered the \"holy grail\" of equalizer designs. These were employed in the renowned Pultec equalizer design dating back to the late 1950s. Owing to their unique electro-mechanical properties, inductors impart a character all of their own, which is very distinct. The NDUCR uses 32 inductors spread out over the four bands with custom-wound Carnhill inductors in the low-mid and low bands, giving precise control and the inductor sound on each band.\u003c\/p\u003e\r\n\u003cp\u003eInductors provide a “peaking” characteristic, giving much tighter control of the frequency selected. The inductor values and components have been carefully chosen and matched to provide an extremely musical sound. Each band provides switch selection of any of six carefully selected frequencies chosen at musically pleasing intervals. Each band uses a 100mm fader - instead of a rotary pot - for cut and boost control, allowing very fine control of a maximum of plus or minus 15dB per band.\u003c\/p\u003e\r\n\u003cp\u003eThe NDUCR features Class A discrete electronics, however, this circuit is a decidedly modern design with updated techniques and components that were simply not available 60 years ago. This is definitely not a clone or copy!\u003c\/p\u003e","brand":"Interphase Audio","offers":[{"title":"Default Title","offer_id":44450907979879,"sku":"187533","price":2395.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/8848\/5479\/files\/interphase-nducer_187533_1.jpg?v=1787095047"},{"product_id":"interphase-audio-iridium-500-series-equalizer","title":"Interphase Audio Iridium 500 Series Equalizer","description":"\u003cp\u003eThe \u003cstrong\u003eInterphase Audio Iridium\u003c\/strong\u003e is a 500 Series 4-band inductive equalizer. The name Iridium is derived \"Iris,\" the Greek goddess of the rainbow - and that is exactly what you’ll get with this unit! A silky smooth rainbow of EQ. Dial in any frequency, and be amazed.\u003c\/p\u003e\r\n\u003cp\u003eInductor based circuits are considered the \"holy grail\" of equalizer designs. These were used for example in the much renowned Pultec equalizer design dating back to the late 1950s. Owing to their unique electro-mechanical properties, inductors impart a character all of their own, which is very distinctive.\u003c\/p\u003e\r\n\u003cp\u003eThe Iridium uses 16 inductors spread out over the four bands, with custom-wound Carnhill inductors in the low-mid and low bands, giving precise control and the inductor sound on each band. Iridium features a a Class A, discrete design with all components carefully chosen and matched to provide an extremely musical sound. You’ll get a very distinctive sound, which most sound engineers love.\u003c\/p\u003e\r\n\u003cp\u003eAs a consequence of using inductors, this provides a “peaking” or “bell” characteristic, giving tight control of the frequency selected. Each band provides switch selection of any of 6 carefully selected frequencies chosen at musically pleasing intervals. Each band allows very fine control of up to 15dB cut or boost per band.\u003c\/p\u003e\r\n\u003cp\u003eThough the circuit in the Iridium is based on a vintage design, it is decidedly modern with updated techniques and components that were simply not available 60 years ago. This is definitely not a clone or copy!\u003c\/p\u003e\r\n\u003ch3 id=\"toc_0\"\u003eTECHNICAL DETAILS:\u003c\/h3\u003e\r\n\u003cul\u003e\r\n\u003cli\u003eInput impedance: 30 kOhms\u003c\/li\u003e\r\n\u003cli\u003eCommon mode rejection: 80 dB\u003c\/li\u003e\r\n\u003cli\u003eDistortion: 0.001% (+4 dBu output 1 kHz)\u003c\/li\u003e\r\n\u003cli\u003eFrequency response: 7 Hz to 70 kHz (-3 dB)\u003c\/li\u003e\r\n\u003cli\u003eBoost\/Cut range: ±15 dB (continuously variable)\u003c\/li\u003e\r\n\u003cli\u003eHF Frequency: 8, 9, 10, 12, 14, 16 kHz (stepped)\u003c\/li\u003e\r\n\u003cli\u003eHMF Frequency: 1.5, 3, 5 6, 7, 8 kHz (stepped)\u003c\/li\u003e\r\n\u003cli\u003eLMF Frequency: 125, 250, 500, 1k, 2k, 4 kHz (stepped)\u003c\/li\u003e\r\n\u003cli\u003eLF Frequency: 50, 80, 100, 150, 300, 600 Hz (stepped)\u003c\/li\u003e\r\n\u003cli\u003eFilter Q: 1.2 (just over 1 octave)\u003c\/li\u003e\r\n\u003cli\u003eMaximum input level: +28 dBu\u003c\/li\u003e\r\n\u003cli\u003eMaximum output level: +28 dBu (10k load)\u003c\/li\u003e\r\n\u003cli\u003eNominal input and output level: +4 dBu (electronically balanced)\u003c\/li\u003e\r\n\u003cli\u003eOutput impedance: 100 Ohms\u003c\/li\u003e\r\n\u003cli\u003eNoise floor (typical, unweighted, EQ on): -80 dBu\u003c\/li\u003e\r\n\u003cli\u003eNoise floor (unweighted, EQ off): -100 dBu\u003c\/li\u003e\r\n\u003cli\u003eCurrent requirement: 81 mA (maximum) per rail\u003c\/li\u003e\r\n\u003c\/ul\u003e","brand":"Interphase Audio","offers":[{"title":"Default Title","offer_id":44450908012647,"sku":"187531","price":588.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/8848\/5479\/files\/interphase-iridium_187531_1.jpg?v=1787095046"},{"product_id":"interphase-audio-carbon-500-series-equalizer","title":"Interphase Audio Carbon 500 Series Equalizer","description":"\u003cp\u003eThe \u003cstrong\u003eInterphase Audio Carbon\u003c\/strong\u003e is a basic building block, “go to” EQ in 500 Series module format with four large overlapping frequency bands that allow you to go wild. Capacitor-based EQ circuits are considered the “classic” equalizer design, and Carbon is based on this design. Carbon features a full Class A, discrete design with all components having been carefully chosen and matched to provide an extremely musical sound.\u003c\/p\u003e\r\n\u003cp\u003eThe four EQ bands have large overlapping frequency controls, making them well-suited for minimizing problematic frequencies, or giving an extra boost to others. The HF and LF bands can be used as either shelf or peak, for extra punch, dimension or control of high and low-end. Each band can be cut or boosted by as much as 15 dB per band.\u003c\/p\u003e\r\n\u003cp\u003eThis is definitely not a clone or copy. Like all Interphase Audio products, Carbon is truly unique and features great sound and easy-to-use functionality.\u003c\/p\u003e\r\n\r\n\u003ch3 id=\"toc_1\"\u003eTECHNICAL:\u003c\/h3\u003e\r\n\u003cul\u003e\r\n\u003cli\u003eInput impedance: 30 kOhms\u003c\/li\u003e\r\n\u003cli\u003eCommon mode rejection: 80 dB\u003c\/li\u003e\r\n\u003cli\u003eDistortion: 0.001% (+4 dBu output 1 kHz)\u003c\/li\u003e\r\n\u003cli\u003eFrequency response: 7 Hz to 70 kHz (-3 dB)\u003c\/li\u003e\r\n\u003cli\u003eBoost\/Cut range: ±15 dB (continuously variable)\u003c\/li\u003e\r\n\u003cli\u003eHF Frequency: 1.2 kHz - 22 kHz (continuously variable)\u003c\/li\u003e\r\n\u003cli\u003eHMF Frequency: 0.5 kHz - 8 kHz (continuously variable)\u003c\/li\u003e\r\n\u003cli\u003eLMF Frequency: 100 Hz - 1.8 kHz (continuously variable)\u003c\/li\u003e\r\n\u003cli\u003eLF Frequency: 25 Hz - 440 Hz (continuously variable)\u003c\/li\u003e\r\n\u003cli\u003eFilter Q: 1.2 (just over 1 octave)\u003c\/li\u003e\r\n\u003cli\u003eMaximum input level: +28 dBu\u003c\/li\u003e\r\n\u003cli\u003eMaximum output level: +28 dBu (10 k load)\u003c\/li\u003e\r\n\u003cli\u003eNominal input and output level: +4 dBu (electronically balanced)\u003c\/li\u003e\r\n\u003cli\u003eOutput impedance: 100 Ohms\u003c\/li\u003e\r\n\u003cli\u003eNoise floor (typical, unweighted, EQ on): -80 dBu\u003c\/li\u003e\r\n\u003cli\u003eNoise floor (unweighted, EQ off): -100 dBu\u003c\/li\u003e\r\n\u003cli\u003eCurrent requirement: 111 mA (maximum) per rail\u003c\/li\u003e\r\n\u003c\/ul\u003e","brand":"Interphase Audio","offers":[{"title":"Default Title","offer_id":44450908045415,"sku":"187530","price":528.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/8848\/5479\/files\/interphase-carbon_187530_1.jpg?v=1787095047"},{"product_id":"interphase-audio-helium-500","title":"Interphase Audio Helium 500 Series Equalizer","description":"\u003cp\u003eThe \u003cstrong\u003eInterphase Audio Helium\u003c\/strong\u003e combines capacitor based EQ circuits and filters with inductor based EQ circuits in. single slot 500 Series module. Helium is essentially a combination of Interphase's Carbon and Iridium EQs, with extra filter circuits added. It features a fully Class A, discrete design with all components having been carefully chosen and matched to provide an extremely musical sound.\u003c\/p\u003e\r\n\u003cp\u003eHelium's four bands have large overlapping frequency controls, making it well-suited for minimizing problematic frequencies, or giving an extra boost to others. The HF and LF band can be used as either bell-curved EQ or as -12 dB per octave hi—cut\/lo-cut filter. The two middle bands feature inductive EQ, with custom-wound Carnhill inductors on the lo-mid band. Each band can be cut or boost with as much as 15 dB per band.\u003c\/p\u003e\r\n\u003cp\u003eThis is definitely not a clone or copy. Like all Interphase Audio products, Helium is unique and features great sound and straight forward functionality!\u003c\/p\u003e\r\n\u003ch3 id=\"toc_0\"\u003eTECHNICAL DETAILS:\u003c\/h3\u003e\r\n\u003cul\u003e\r\n\u003cli\u003eInput impedance: 30 kOhms\u003c\/li\u003e\r\n\u003cli\u003eCommon mode rejection: 80 dB\u003c\/li\u003e\r\n\u003cli\u003eDistortion: 0.001% (+4 dBu output 1 kHz)\u003c\/li\u003e\r\n\u003cli\u003eFrequency response: 7 Hz to 70 kHz (-3 dB)\u003c\/li\u003e\r\n\u003cli\u003eBoost\/Cut range: ±15 dB (continuously variable)\u003c\/li\u003e\r\n\u003cli\u003eHF Frequency: 1.2 kHz - 22 kHz (continuously variable)\u003c\/li\u003e\r\n\u003cli\u003eHF Frequency switchable to 12 dB per octave sweepable Hi-Cut filter 1.2 kHz - 22 kHz\u003c\/li\u003e\r\n\u003cli\u003eHMF Frequency: 1.5, 3, 5 6, 7, 8 kHz (stepped)\u003c\/li\u003e\r\n\u003cli\u003eLMF Frequency: 125, 250, 500, 1k, 2k, 4 kHz (stepped)\u003c\/li\u003e\r\n\u003cli\u003eLF Frequency: 25 Hz - 440 Hz (continuously variable)\u003c\/li\u003e\r\n\u003cli\u003eLF Frequency switchable to 12 dB per octave sweepable Lo-Cut filter 25 Hz - 440 Hz\u003c\/li\u003e\r\n\u003cli\u003eFilter Q: 1.2 (just over 1 octave)\u003c\/li\u003e\r\n\u003cli\u003eMaximum input level: +2 8dBu\u003c\/li\u003e\r\n\u003cli\u003eMaximum output level: +28 dBu (10 kOhms load)\u003c\/li\u003e\r\n\u003cli\u003eNominal input and output level: +4 dBu (electronically balanced)\u003c\/li\u003e\r\n\u003cli\u003eOutput impedance: 100 Ohms\u003c\/li\u003e\r\n\u003cli\u003eNoise floor (typical, unweighted, EQ on): -80 dBu\u003c\/li\u003e\r\n\u003cli\u003eNoise floor (unweighted, EQ off): -100 dBu\u003c\/li\u003e\r\n\u003cli\u003eCurrent requirement: 129 mA (maximum) per rail\u003c\/li\u003e\r\n\u003c\/ul\u003e","brand":"Interphase Audio","offers":[{"title":"Default Title","offer_id":44450908733543,"sku":"187532","price":770.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/8848\/5479\/files\/interphase-helium_187532_1.jpg?v=1787095050"},{"product_id":"interphase-audio-iridium-500-series-equalizer-demo-deal-open-box","title":"Interphase Audio Iridium 500 Series Equalizer (Demo Deal)","description":"\u003cp\u003eThe \u003cstrong\u003eInterphase Audio Iridium\u003c\/strong\u003e is a 500 Series 4-band inductive equalizer. The name Iridium is derived \"Iris,\" the Greek goddess of the rainbow - and that is exactly what you’ll get with this unit! A silky smooth rainbow of EQ. Dial in any frequency, and be amazed.\u003c\/p\u003e\n\u003cp\u003eInductor based circuits are considered the \"holy grail\" of equalizer designs. These were used for example in the much renowned Pultec equalizer design dating back to the late 1950s. Owing to their unique electro-mechanical properties, inductors impart a character all of their own, which is very distinctive.\u003c\/p\u003e\n\u003cp\u003eThe Iridium uses 16 inductors spread out over the four bands, with custom-wound Carnhill inductors in the low-mid and low bands, giving precise control and the inductor sound on each band. Iridium features a a Class A, discrete design with all components carefully chosen and matched to provide an extremely musical sound. You’ll get a very distinctive sound, which most sound engineers love.\u003c\/p\u003e\n\u003cp\u003eAs a consequence of using inductors, this provides a “peaking” or “bell” characteristic, giving tight control of the frequency selected. Each band provides switch selection of any of 6 carefully selected frequencies chosen at musically pleasing intervals. Each band allows very fine control of up to 15dB cut or boost per band.\u003c\/p\u003e\n\u003cp\u003eThough the circuit in the Iridium is based on a vintage design, it is decidedly modern with updated techniques and components that were simply not available 60 years ago. This is definitely not a clone or copy!\u003c\/p\u003e\n\u003ch3 id=\"toc_0\"\u003eTECHNICAL DETAILS:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eInput impedance: 30 kOhms\u003c\/li\u003e\n\u003cli\u003eCommon mode rejection: 80 dB\u003c\/li\u003e\n\u003cli\u003eDistortion: 0.001% (+4 dBu output 1 kHz)\u003c\/li\u003e\n\u003cli\u003eFrequency response: 7 Hz to 70 kHz (-3 dB)\u003c\/li\u003e\n\u003cli\u003eBoost\/Cut range: ±15 dB (continuously variable)\u003c\/li\u003e\n\u003cli\u003eHF Frequency: 8, 9, 10, 12, 14, 16 kHz (stepped)\u003c\/li\u003e\n\u003cli\u003eHMF Frequency: 1.5, 3, 5 6, 7, 8 kHz (stepped)\u003c\/li\u003e\n\u003cli\u003eLMF Frequency: 125, 250, 500, 1k, 2k, 4 kHz (stepped)\u003c\/li\u003e\n\u003cli\u003eLF Frequency: 50, 80, 100, 150, 300, 600 Hz (stepped)\u003c\/li\u003e\n\u003cli\u003eFilter Q: 1.2 (just over 1 octave)\u003c\/li\u003e\n\u003cli\u003eMaximum input level: +28 dBu\u003c\/li\u003e\n\u003cli\u003eMaximum output level: +28 dBu (10k load)\u003c\/li\u003e\n\u003cli\u003eNominal input and output level: +4 dBu (electronically balanced)\u003c\/li\u003e\n\u003cli\u003eOutput impedance: 100 Ohms\u003c\/li\u003e\n\u003cli\u003eNoise floor (typical, unweighted, EQ on): -80 dBu\u003c\/li\u003e\n\u003cli\u003eNoise floor (unweighted, EQ off): -100 dBu\u003c\/li\u003e\n\u003cli\u003eCurrent requirement: 81 mA (maximum) per rail\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Interphase Audio","offers":[{"title":"Default Title","offer_id":44451048980583,"sku":"218025","price":649.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/8848\/5479\/files\/interphase-iridium_187531_1_dfc31e1f-e49b-41a7-9796-a931b7091817.jpg?v=1787095628"},{"product_id":"interphase-audio-carbon-500-series-equalizer-demo-deal-open-box","title":"Interphase Audio Carbon 500 Series Equalizer (Demo Deal)","description":"\u003cp\u003eThe \u003cstrong\u003eInterphase Audio Carbon\u003c\/strong\u003e is a basic building block, “go to” EQ in 500 Series module format with four large overlapping frequency bands that allow you to go wild. Capacitor-based EQ circuits are considered the “classic” equalizer design, and Carbon is based on this design. Carbon features a full Class A, discrete design with all components having been carefully chosen and matched to provide an extremely musical sound.\u003c\/p\u003e\n\u003cp\u003eThe four EQ bands have large overlapping frequency controls, making them well-suited for minimizing problematic frequencies, or giving an extra boost to others. The HF and LF bands can be used as either shelf or peak, for extra punch, dimension or control of high and low-end. Each band can be cut or boosted by as much as 15 dB per band.\u003c\/p\u003e\n\u003cp\u003eThis is definitely not a clone or copy. Like all Interphase Audio products, Carbon is truly unique and features great sound and easy-to-use functionality.\u003c\/p\u003e\n\n\u003ch3 id=\"toc_1\"\u003eTECHNICAL:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eInput impedance: 30 kOhms\u003c\/li\u003e\n\u003cli\u003eCommon mode rejection: 80 dB\u003c\/li\u003e\n\u003cli\u003eDistortion: 0.001% (+4 dBu output 1 kHz)\u003c\/li\u003e\n\u003cli\u003eFrequency response: 7 Hz to 70 kHz (-3 dB)\u003c\/li\u003e\n\u003cli\u003eBoost\/Cut range: ±15 dB (continuously variable)\u003c\/li\u003e\n\u003cli\u003eHF Frequency: 1.2 kHz - 22 kHz (continuously variable)\u003c\/li\u003e\n\u003cli\u003eHMF Frequency: 0.5 kHz - 8 kHz (continuously variable)\u003c\/li\u003e\n\u003cli\u003eLMF Frequency: 100 Hz - 1.8 kHz (continuously variable)\u003c\/li\u003e\n\u003cli\u003eLF Frequency: 25 Hz - 440 Hz (continuously variable)\u003c\/li\u003e\n\u003cli\u003eFilter Q: 1.2 (just over 1 octave)\u003c\/li\u003e\n\u003cli\u003eMaximum input level: +28 dBu\u003c\/li\u003e\n\u003cli\u003eMaximum output level: +28 dBu (10 k load)\u003c\/li\u003e\n\u003cli\u003eNominal input and output level: +4 dBu (electronically balanced)\u003c\/li\u003e\n\u003cli\u003eOutput impedance: 100 Ohms\u003c\/li\u003e\n\u003cli\u003eNoise floor (typical, unweighted, EQ on): -80 dBu\u003c\/li\u003e\n\u003cli\u003eNoise floor (unweighted, EQ off): -100 dBu\u003c\/li\u003e\n\u003cli\u003eCurrent requirement: 111 mA (maximum) per rail\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Interphase Audio","offers":[{"title":"Default Title","offer_id":44451049013351,"sku":"218024","price":549.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/8848\/5479\/files\/interphase-carbon_187530_1_d2217715-18ac-4e57-ab29-f4a666fd87d1.jpg?v=1787095629"},{"product_id":"interphase-audio-helium-500-demo-deal-open-box","title":"Interphase Audio Helium 500 Series Equalizer (Demo Deal)","description":"\u003cp\u003eThe \u003cstrong\u003eInterphase Audio Helium\u003c\/strong\u003e combines capacitor based EQ circuits and filters with inductor based EQ circuits in. single slot 500 Series module. Helium is essentially a combination of Interphase's Carbon and Iridium EQs, with extra filter circuits added. It features a fully Class A, discrete design with all components having been carefully chosen and matched to provide an extremely musical sound.\u003c\/p\u003e\n\u003cp\u003eHelium's four bands have large overlapping frequency controls, making it well-suited for minimizing problematic frequencies, or giving an extra boost to others. The HF and LF band can be used as either bell-curved EQ or as -12 dB per octave hi—cut\/lo-cut filter. The two middle bands feature inductive EQ, with custom-wound Carnhill inductors on the lo-mid band. Each band can be cut or boost with as much as 15 dB per band.\u003c\/p\u003e\n\u003cp\u003eThis is definitely not a clone or copy. Like all Interphase Audio products, Helium is unique and features great sound and straight forward functionality!\u003c\/p\u003e\n\u003ch3 id=\"toc_0\"\u003eTECHNICAL DETAILS:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eInput impedance: 30 kOhms\u003c\/li\u003e\n\u003cli\u003eCommon mode rejection: 80 dB\u003c\/li\u003e\n\u003cli\u003eDistortion: 0.001% (+4 dBu output 1 kHz)\u003c\/li\u003e\n\u003cli\u003eFrequency response: 7 Hz to 70 kHz (-3 dB)\u003c\/li\u003e\n\u003cli\u003eBoost\/Cut range: ±15 dB (continuously variable)\u003c\/li\u003e\n\u003cli\u003eHF Frequency: 1.2 kHz - 22 kHz (continuously variable)\u003c\/li\u003e\n\u003cli\u003eHF Frequency switchable to 12 dB per octave sweepable Hi-Cut filter 1.2 kHz - 22 kHz\u003c\/li\u003e\n\u003cli\u003eHMF Frequency: 1.5, 3, 5 6, 7, 8 kHz (stepped)\u003c\/li\u003e\n\u003cli\u003eLMF Frequency: 125, 250, 500, 1k, 2k, 4 kHz (stepped)\u003c\/li\u003e\n\u003cli\u003eLF Frequency: 25 Hz - 440 Hz (continuously variable)\u003c\/li\u003e\n\u003cli\u003eLF Frequency switchable to 12 dB per octave sweepable Lo-Cut filter 25 Hz - 440 Hz\u003c\/li\u003e\n\u003cli\u003eFilter Q: 1.2 (just over 1 octave)\u003c\/li\u003e\n\u003cli\u003eMaximum input level: +2 8dBu\u003c\/li\u003e\n\u003cli\u003eMaximum output level: +28 dBu (10 kOhms load)\u003c\/li\u003e\n\u003cli\u003eNominal input and output level: +4 dBu (electronically balanced)\u003c\/li\u003e\n\u003cli\u003eOutput impedance: 100 Ohms\u003c\/li\u003e\n\u003cli\u003eNoise floor (typical, unweighted, EQ on): -80 dBu\u003c\/li\u003e\n\u003cli\u003eNoise floor (unweighted, EQ off): -100 dBu\u003c\/li\u003e\n\u003cli\u003eCurrent requirement: 129 mA (maximum) per rail\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Interphase Audio","offers":[{"title":"Default Title","offer_id":44451049046119,"sku":"218026","price":679.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/8848\/5479\/files\/interphase-helium_187532_1_1aa445b8-e518-4287-9a3d-cfda1e5345e6.jpg?v=1787095629"},{"product_id":"interphase-audio-nducr-4-band-inductive-eq-demo-deal","title":"Interphase Audio NDUCR 4-Band Inductive EQ (Demo Deal)","description":"\u003cp\u003eThe \u003cstrong\u003eInterphase Audio NDUCR\u003c\/strong\u003e is a 2-channel 19\" rack-mount unit with 4 inductive EQ bands per channel. It's designed to add color to your signal, and silky smooth color that is. The NDUCER has four bands with switchable, overlapping frequencies:\u003c\/p\u003e\r\n\u003cul\u003e\r\n\u003cli\u003eLow (Hz): 50, 80, 100, 150, 300, 600\u003c\/li\u003e\r\n\u003cli\u003eLow Mid (Hz): 125, 250, 500, 1K, 2K, 4K\u003c\/li\u003e\r\n\u003cli\u003eHi Mid (kHz): 1.5, 3, 5, 6, 7, 8\u003c\/li\u003e\r\n\u003cli\u003eHigh (kHz): 8, 9, 10, 12, 14, 16\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\u003cp\u003eThe inductor based circuit is considered the \"holy grail\" of equalizer designs. These were employed in the renowned Pultec equalizer design dating back to the late 1950s. Owing to their unique electro-mechanical properties, inductors impart a character all of their own, which is very distinct. The NDUCR uses 32 inductors spread out over the four bands with custom-wound Carnhill inductors in the low-mid and low bands, giving precise control and the inductor sound on each band.\u003c\/p\u003e\r\n\u003cp\u003eInductors provide a “peaking” characteristic, giving much tighter control of the frequency selected. The inductor values and components have been carefully chosen and matched to provide an extremely musical sound. Each band provides switch selection of any of six carefully selected frequencies chosen at musically pleasing intervals. Each band uses a 100mm fader - instead of a rotary pot - for cut and boost control, allowing very fine control of a maximum of plus or minus 15dB per band.\u003c\/p\u003e\r\n\u003cp\u003eThe NDUCR features Class A discrete electronics, however, this circuit is a decidedly modern design with updated techniques and components that were simply not available 60 years ago. This is definitely not a clone or copy!\u003c\/p\u003e","brand":"Interphase Audio","offers":[{"title":"Default Title","offer_id":44451078733927,"sku":"370593","price":1519.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/8848\/5479\/files\/interphase-nducer_187533_1_59184de5-c803-44a2-9024-4bb8631ee5aa.jpg?v=1787095749"}],"url":"https:\/\/vintageking1.myshopify.com\/collections\/interphase-audio.oembed","provider":"VINTAGE KING AUDIO","version":"1.0","type":"link"}