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From Heritage Audio

The best of both worlds.

Introducing Heritage Audio’s HA-81A: a new mix of 2 classic console´s circuits.

The 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.

The mic preamp that meets the demands.

The 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.

The preamp features gain, output trim, -20db pad, polarity reverse, and +48v phantom power.

The best console´s style equalizer ever made.

The 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.

Hybrid design. Heritage quality.

The 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.

Microphone 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.
Line input impedance
10KOhms bridging, transformer balanced and floating.
Output impedance
Less than 75 Ohms, transformer balanced and floating, to drive a load of 600 Ohms.
Maximum output
Greater than +26.5dBu into 600 Ohms (internally terminated)
THD
Less than 0.025% at 1Khz, Less than 0.05% at 100Hz.
Frequency response
20Hz (+0.3dB) to 20Khz (-0.2dB).EQ Off. For EQ ON frequency response please check the features section.
Maximum Gain
Slightly greater than 80dB.
Equivalent Input Noise
Less than -125dBu at 80dB mic gain.
Output stage noise
Less than -100dBu.
Power consumption
Less than 150 mA @48VDC.

Warranty

This item is sold without the Sound Pure 3-year warranty (used / B-stock / dealer-exempt). Coverage terms for items in this category live in Terms & Conditions, Section 27.

Returns

Try Before You Buy: take it home, commit only when it's right. Program details →

Sound Pure Studios Control Room A — Durham, NC

Sound Pure Studios · Durham, NC

Come hear it in our control rooms.

Sound Pure is a working studio in Durham, NC — a 1,000 sq ft live room and two pro control rooms. Book a session to audition gear in a world-class acoustic space before you buy.