{"product_id":"heritage-audio-ha81a-channel-strip-with-73-style-mic-preamp-81-style-eq","title":"Heritage Audio HA81A Channel Strip with 73-Style Mic Preamp \u0026 81-Style EQ","description":"\u003cp\u003eThe best of both worlds.\nIntroducing Heritage Audio’s HA-81A: a new mix of 2 classic console´s circuits.\n\nThe HA-81A Elite is a channel strip that combines an all discrete, Class-A 73-style mic preamp with an extremely versatile and musical console style equalizer — arguably the trick for obtaining instant classic sound for all recording engineers.\n\nThe mic preamp that meets the demands.\nThe HA-81A’s preamp section is an 80 dB, all discrete Class-A design with Carnhill\/St. Ives input and output transformers, exactly the same one found in the other Elite Series modules.\n\nThe preamp features gain, output trim, -20db pad, polarity reverse, and +48v phantom power.\n\nThe best console´s style equalizer ever made.\nThe HA-81’s equalizer section is an exceptionally musical 4 band, inductor-based equalizer with high and low pass filters. Where 3 band equalizers such as the typical 73-style exceed at musicality but may get short of features, the HA-81A EQ equally excels on both. Extreme control over Shelf or Bell response curves on the high and lows, dual Q on both mid bands, with dedicated high and low mid ones, and a range of 40 frequency selections to choose from.\n\nHybrid design. Heritage quality.\nThe Heritage HA-81A utilizes only rotary switches and precision, concentric potentiometers. And like all of the products in our Elite range, the HA-81A is built with the most cutting edge methods in manufacturing and design, without ever compromising audio quality or cutting corners — all at the Heritage headquarters in Spain.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMicrophone input impedance: HI, 1200 Ohm minimum, LO, 300 Ohm minimum. Higher gain positions gradually have greater impedances, optimum for low gain ribbon mics. Input is transformer balanced and floating.\u003c\/li\u003e\n\u003cli\u003eLine input impedance: 10KOhms bridging, transformer balanced and floating.\u003c\/li\u003e\n\u003cli\u003eOutput impedance: Less than 75 Ohms, transformer balanced and floating, to drive a load of 600 Ohms.\u003c\/li\u003e\n\u003cli\u003eMaximum output: Greater than +26.5dBu into 600 Ohms (internally terminated)\u003c\/li\u003e\n\u003cli\u003eTHD: Less than 0.025% at 1Khz, Less than 0.05% at 100Hz.\u003c\/li\u003e\n\u003cli\u003eFrequency response :20Hz (+0.3dB) to 20Khz (-0.2dB).EQ Off. For EQ ON frequency response please check the features section.\u003c\/li\u003e\n\u003cli\u003eMaximum Gain: Slightly greater than 80dB.\u003c\/li\u003e\n\u003cli\u003eEquivalent Input Noise: Less than -125dBu at 80dB mic gain.\u003c\/li\u003e\n\u003cli\u003eOutput stage noise: Less than -100dBu.\u003c\/li\u003e\n\u003cli\u003ePower consumption: Less than 150 mA @48VDC.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Heritage Audio","offers":[{"title":"Default Title","offer_id":48606236967065,"sku":"HA81A","price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0029\/6999\/3316\/files\/HA81A.jpg?v=1785844841","url":"https:\/\/rectangletriangle.ca\/fr\/products\/heritage-audio-ha81a-channel-strip-with-73-style-mic-preamp-81-style-eq","provider":"Rectangle Triangle","version":"1.0","type":"link"}