Heritage Audio HA 73EQ Mono Elite Series Microphone Preamplifier with EQ

BH #HEHA73EQ • MFR #HA-73EQ
Heritage Audio
Heritage Audio HA 73EQ Mono Elite Series Microphone Preamplifier with EQ
Key Features
  • Occupies 1 RU
  • Mic, Instrument, and Line Inputs
  • 3-Stage Discrete Class-A Preamp
  • Hand-Wound Carnhill Transformers
The Heritage Audio HA 73EQ is a 1 RU mono Elite Series microphone preamplifier with EQ designed to provide the sound of classic Neve 1073 preamps and equalizers for recording engineers, musicians, and vocalists in mobile-recording rigs and home, project, and commercial studios. It features 80 dB of gain via a three-stage discrete Class-A preamp, which utilizes stepped input gain and a -20 dB pad. Hand-wound Carnhill transformers impart color and character to the output.
Special Order
Expected availability: 7-14 business days
$899.00

Important Notice

  • This item is noncancelable and nonreturnable.
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Heritage Audio HA-73EQ Overview

The Heritage Audio HA 73EQ is a 1 RU mono Elite Series microphone preamplifier with EQ designed to provide the sound of classic Neve 1073 preamps and equalizers for recording engineers, musicians, and vocalists in mobile-recording rigs and home, project, and commercial studios. It features 80 dB of gain via a three-stage discrete Class-A preamp, which utilizes stepped input gain and a -20 dB pad. Hand-wound Carnhill transformers impart color and character to the output.

Connect a mic or line input via balanced XLR jacks or hook up a guitar, bass, or keyboard to the integrated Hi-Z, JFET-based DI via the front-panel 1/4" jack. Sculpt and sweeten your tone via the discrete 3-band EQ, which includes semi-parametric low and mid bands and a 12 kHz high-shelf band. Care has been taken to incorporate period-correct inductors and frequency options. Phantom power and input impedance are selectable, the output level is continuously variable, and a high-pass filter with four selectable frequencies allows you to remove unwanted low end.

The HA 73EQ ships with an external universal power supply for worry-free use anywhere in the world.

Single-channel microphone preamplifier and 3-band EQ in a 1 RU enclosure
Three-stage discrete Class-A preamp with 80 dB of gain
Hand-wound Carnhill transformers
WIMA 5% capacitors and Vinkor-type pot core inductors
Stepped input gain for easy recall
Variable output level
Shelving high-band EQ at 12 kHz
Peaking mid-band EQ with six selectable frequencies—360 Hz, 700 Hz, 1.6 kHz, 3.2 kHz, 4.8 kHz, 7.2 kHz
Shelving low-band EQ with four selectable frequencies—35 Hz, 60 Hz, 110 Hz, 220 Hz
High-pass filter with four selectable frequencies—50 Hz, 80 Hz, 160 Hz, or 300 Hz
Switchable -20 dB pad, polarity, and selectable impedance of 300 Ohms or 1200 Ohms
Selectable phantom power, input source, and EQ on/off
Integrated Hi-Z DI with front-panel 1/4" TS input for direct connection of instruments
External universal power supply works regardless of region
UPC: 750536937133

Heritage Audio HA-73EQ Specs

Number of Channels1
Inputs1 x XLR 3-pin female microphone input
1 x XLR 3-pin female line input
1 x 1/4" TS Hi-Z input
Output1 x XLR 3-pin male output
Phantom PowerSelectable
Gain Range>80 dB
Maximum Output Level> +26 dB into 600 Ohms (internally terminated)
Frequency Response20 Hz (+0.3 dB) to 20 kHz (-0.2 dB)
Input ImpedanceMicrophone Hi: 1200 Ohms minimum
Microphone Lo: 300 Ohms minimum
Line: 10 kOhms bridging
Output Impedance<75 Ohms to drive a load of 600 Ohms
THD<0.025% at 1 kHz
<0.05% at 100 Hz
Equivalent Input Noise< -125 dBu
Output Noise< -100 dBu
Power RequirementHA-PSU04 external power supply
Power Consumption<95 mA at 48 VDC
Housing MaterialSteel and aluminum
Dimensions (W x D x H)17.1 x 7.2 x 1.2" / 43.5 x 18.3 x 3.0 cm
Weight7 lb / 3.2 kg
Packaging Info
Package Weight8.65 lb
Box Dimensions (LxWxH)22 x 13 x 13"
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