The Warm Audio WA73-EQ is a single-channel, Class-A microphone preamp and equalizer designed to provide up to 80 dB of gain and 3-band EQ for engineers, producers, musicians, and vocalists in mobile-recording rigs and home, project, and commercial studios. It features custom Carnhill transformers and is wired and assembled by hand to deliver the sound and functionality of classic British ’73-style preamps.
Its inputs include balanced XLR and 1/4″ TRS jacks and one front-panel 1/4″ TS instrument input. Input impedance, polarity, ground lift, and phantom power are switchable. Connect an outboard compressor or equalizer via the 1/4″ TS insert send and return jacks. Balanced XLR and 1/4″ outputs are fed by an output level control and allow compatibility with most audio interfaces and mixing consoles. The selectable high-pass filter can be set to 50 Hz, 80 Hz, 160 Hz, or 300 Hz for management of unruly bass frequencies.
The inductor-based EQ boasts selectable frequencies and Blore Edwards dual-concentric potentiometers. The WA73-EQ is rack-mountable and occupies 1 RU.
Occupies 1 RU
Single-channel, Class-A mic preamp and 3-band equalizer wired and assembled by hand
Created through years of R&D, careful reverse-engineering, and countless hours of auditioning
Designed to function and sound like a classic ’73-style preamp
Fully discrete, transformer-balanced signal path
Custom Carnhill transformers saturate sweetly when pushed
Tantalum and polystyrene capacitors in the signal path and an output transistor choice that is smooth in high-gain settings
Stepped mic pre gain
Selectable low-frequency boost or cut at 35 Hz, 60 Hz, 110 Hz, or 220 Hz
Selectable mid-frequency boost or cut at 360 Hz, 700 Hz, 1.6 kHz, 3.2 kHz, 4.8 kHz, or 7.2 kHz
Selectable high-frequency boost or cut at 10 kHz, 12 kHz, or 16 kHz
Inductor-based EQ and high-pass filter
Blore Edwards dual-concentric EQ switching potentiometers
Balanced XLR and 1/4″ inputs and outputs
Front-panel 1/4″ TS instrument input
1/4″ TS insert send and return
Output control with 5-segment LED meter
Warm Audio WA73-EQ Specs
Rack Height 1 RU
Number of Channels 1
Inputs 1 x XLR 3-pin (balanced)
1 x 1/4″ TRS (balanced)
1 x 1/4″ TS (unbalanced)
Outputs 1 x XLR 3-pin (balanced)
1 x 1/4″ TRS (balanced)
Phantom Power 48 V
High-Pass Filter Off, 50 Hz, 80 Hz, 160 Hz, or 300 Hz
Gain Range Up to 80 dB
Frequency Response 20 Hz to 20 kHz (±0.5 dB)
Equivalent Input Noise -111 dBu (unweighted)
Power Requirement 115/230 V, 50/60 Hz
Dimensions 19.0 x 1.8 x 10.0″ / 48.3 x 4.4 x 25.4 cm
Weight 11 lb / 5 kg
Specialties 1 x 1/4″ TS insert send
1 x 1/4″ TS insert return
1 x 5-segment LED meter
Switches for phantom power, polarity, impedance, input source, insert, power, and ground lift
Packaging Info
Package Weight 12.05 lb
Box Dimensions (LxWxH) 24.2 x 13.9 x 4″
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Brand
Warm Audio
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