Warm Audio WA73 Single-Channel Microphone Preamp


  • Mic, Line, and Instrument Inputs
  • Insert Send and Return
  • Up to 80 dB of Gain
  • Output Level Control
SKU: 713541493155 Categories: , Tags: , , , ,

The Warm Audio WA73 is a single-channel, Class-A microphone preamp designed to provide up to 80 dB of gain 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 WA73 is rack-mountable and occupies 1 RU.

  • Occupies 1 RU
  • Single-channel, Class-A mic preamp 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
  • Inductor-based selectable high-pass filter
  • 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
UPC: 713541493155

Preamp Type: Class A Solid State Number of Channels: 1 Phantom Power: Yes Polarity Switch: Yes EQ: Highpass 50Hz, 80Hz, 160Hz, 300Hz Analog Inputs: 1 x 1/4" (Hi-Z), 1 x XLR (mic), 1 x 1/4" (line) Analog Outputs: 1 x XLR, 1 x 1/4" Channel Inserts: Yes Rack Spaces: 1U Power Source: Standard IEC AC cable Width: 19"


Warm Audio WA73 Single-Channel Microphone Preamp IEC Cable Limited 1-Year Warranty


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