Warm Audio WA73

1-Channel Microphone Preamp in British 1073 Style

Image Warm Audio WA73

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Latest User Reviews

7 years ago

Not what i was expected

8 years ago

great sounding pre

I recently decided it was time to upgrade from the built in preamps in my Focusrite Sapphire to a 'real' external preamp. My budget was about 600 EUR. Afer a LOT of online research, I narrowed my options down to 6 preamps, in roughly the same price range. The preamps were:

ART Pro MPA II

Warm Audio TB12 Tone Beast

Black Lion Audio B173 Preamp

FMR Audio RNP 8380

Warm Audio WA73

Focusrite ISA One Analog

As I will be using the preamp mostly for vocals and bass, I tested both those signals.

I plugged my Ibanez 600 in passive mode into my BSS DI, into the preamp. For vocals, I hooked up my SM7B straight into the preamp, into Logic X. The results:

The Warm Audio WA73 is a great pre, and almost ended up being the preamp I chose. It sounds amazingly large, it has limited but great sounding tone options, and heaps of warm gain. I ended up going for the ART PRO MPAII, because it has that comparable warmth, but with two channels and more options.

Technical Data

  • Manufactured by Warm Audio
  • Released in 2018
  • Average price : $655
  • Discrete Class A circuit
  • Carnhill transformer
  • 80 dB gain
  • Incremented potentiometer
  • Tone button for switching the input impedance
  • Switch for phase reversal
  • Low-cut filter 4-step switchable (50, 80, 160, 300 Hz)
  • LED meter
  • 48V Phantom power
  • XLR microphone input
  • Line input: 6.3 mm jack
  • Instrument input: 6.3 mm jack
  • Insert input and output: 6.3 mm jack
  • Line output: XLR and 6.3 mm jack
  • Integrated power supply unit (115/230 V)
  • Build: 19" / 1 U
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