{"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","url":"https:\/\/vintageking.mom\/products\/interphase-audio-iridium-500-series-equalizer","provider":"Vintage King","version":"1.0","type":"link"}