{"product_id":"pultec-eqp-1a-program-equalizer","title":"Pultec EQP-1A Program Equalizer","description":"\u003cdiv lang=\"en\"\u003e\n\u003cp\u003e\u003cstrong\u003ePultec EQP-1A Program Equalizer\u003c\/strong\u003e is a tube passive equalizer in a 3U chassis with the classic blue front panel, built by Pulse Techniques from the same components as the units made between 1961 and 1981. The equalization section is entirely passive: the filters attenuate, and a tube line amp on 12AU7, 12AX7 and 6X4 restores the level. That gain stage shapes the sound as much as the curves do, which is why the unit leaves its mark on a signal even with every control at zero.\u003c\/p\u003e\n\u003ch3\u003eMore weight and less mud in a single move\u003c\/h3\u003e\n\u003cp\u003eLow-frequency boost and attenuation work on the same selected frequency but follow different curves, so you can lift 60 Hz by a few decibels and cut with the attenuator at the same setting. The bottom gains mass while the band immediately above it loses the excess that normally clouds kick and bass. No single parametric filter reproduces this, because the effect comes from two circuits interacting inside one passive network. The range is generous: up to 17.5 dB of cut against 13.5 dB of boost, enough to reshape a full drum bus.\u003c\/p\u003e\n\u003ch3\u003eTop end that opens up instead of stinging\u003c\/h3\u003e\n\u003cp\u003eHigh-frequency peak boost offers seven centres from 3 to 16 kHz plus a bandwidth control, and that control is what makes the section usable in practice. A wide curve at 10 or 16 kHz opens vocals and overheads without dragging sibilance forward, because the peak stays gentle and spread out. Narrowing the bandwidth turns the same knob into a presence tool at 3 or 5 kHz for guitars or snare. A separate high shelf attenuator at 5, 10 or 20 kHz, up to 16 dB, lets you pull excess air off a saturated bus at the same time, without touching the band you just lifted.\u003c\/p\u003e\n\u003ch3\u003eKEY FEATURES\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFully passive equalization network with a tube line amp restoring level\u003c\/li\u003e\n\u003cli\u003e3U chassis with the blue front panel in the original 1961-1971 layout\u003c\/li\u003e\n\u003cli\u003eSimultaneous low-frequency boost and attenuation at the same frequency\u003c\/li\u003e\n\u003cli\u003eFour low-frequency centres: 20, 30, 60 and 100 Hz, boost and cut\u003c\/li\u003e\n\u003cli\u003eSeven high-frequency peak centres from 3 to 16 kHz with bandwidth control\u003c\/li\u003e\n\u003cli\u003eHigh shelf attenuation at 5, 10 and 20 kHz\u003c\/li\u003e\n\u003cli\u003e600 Ohm input and output transformers\u003c\/li\u003e\n\u003cli\u003eIdentical components and specifications to the 2U EQP-1A3\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTECHNICAL SPECIFICATIONS\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eType: passive program equalizer with tube line amplifier\u003c\/li\u003e\n\u003cli\u003eLow shelf boost: 20, 30, 60, 100 Hz, 0-13.5 dB\u003c\/li\u003e\n\u003cli\u003eLow shelf attenuation: 20, 30, 60, 100 Hz, 0-17.5 dB\u003c\/li\u003e\n\u003cli\u003eHigh peak boost: 3, 4, 5, 8, 10, 12, 16 kHz, 0-18 dB\u003c\/li\u003e\n\u003cli\u003eHigh shelf attenuation: 5, 10, 20 kHz, 0-16 dB\u003c\/li\u003e\n\u003cli\u003eInput impedance: approx. 600 Ohms\u003c\/li\u003e\n\u003cli\u003eOutput impedance: approx. 50 Ohms\u003c\/li\u003e\n\u003cli\u003eNoise: 92 dB below +10 dBm\u003c\/li\u003e\n\u003cli\u003eDistortion: 0.15% max at +10 dBm into 600 Ohms\u003c\/li\u003e\n\u003cli\u003eAmplifier response: 20 Hz to 20 kHz, +\/- 0.5 dB\u003c\/li\u003e\n\u003cli\u003eTubes: 12AU7, 12AX7, 6X4 (one each)\u003c\/li\u003e\n\u003cli\u003eHeight: 3U (5.25 inches)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Pultec","offers":[{"title":"Default Title","offer_id":54598605242705,"sku":"28532","price":0.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/8741\/0769\/files\/PultecEQP-1AProgramEqualizer1.jpg?v=1786975236","url":"https:\/\/wrdtunes.com\/de\/products\/pultec-eqp-1a-program-equalizer","provider":"Wired Tunes","version":"1.0","type":"link"}