Warm Audio WA73 Microphone Preamp
Warm Audio WA73 Microphone Preamp
Warm Audio WA73 Microphone Preamp
Warm Audio WA73 Microphone Preamp

Warm Audio WA73 Microphone Preamp

Precio habitual $616.55
Precio unitario  por 
Los gastos de envío se calculan en la pantalla de pago.

Properly reproducing the most legendary British console sound of all time.

If there’s one style of preamp that professional engineers would unanimously agree has defined the tone of pop/rock records for decades, it would most definitely be the venerable '73-style of mic pre. '73-style preamps have been massively used in recording and live applications for many years and are still considered to be the “Holy Grail” of preamp choices today. The Warm Audio “WA73 Family” consists of single and dual channel '73-style preamps (with & w/out EQ), that each pay careful homage to British audio history.

The WA73 is a “Desert Island” boutique preamp, but it can also be classified as a studio and live work-horse. Classic '73-style preamps are known for being versatile tools that work with all kinds of microphones from Condenser, to Dynamic, to Ribbon. The WA73 equally shines on all types of microphones and sources including; vocals, acoustic/electric guitars, bass, drums, percussion, orchestras, keyboards, and even as a tone shaping tool to run partial or complete mixes through. With 80dB of gain and a fully discrete Carnhill Transformer balanced signal path, there’s no recording, mixing or engineering task that the WA73 can’t handle.

An important part of classic British tone not often discussed are the different styles of capacitors and output transistor used in '73-style circuits.
Classic '73-style preamps were often hand-wired and so is the WA73! Guru’s claim that a portion of the sought after classic British tone can be attributed to the hand-wired nature of the build. The WA73 is hand-wired and hand assembled, including the pcb components that are all populated by hand.


  • Single-channel, class a, '73-style british microphone preamp
  • Uk made carnhill transformers
  • Hand wired, hand assembled
  • 80db of gain - resistor stepped gain switch
  • Fully discrete
  • Tone button - changes input transformer impedance for varying tone
  • Polarity switch
  • 48v phantom power
  • 4 position inductor based hipass filter - 50, 80, 160, 300 hz
  • Xlr mic input
  • Line level trs input
  • Ts send/receive insert jacks
  • Xlr & trs line level outputs
  • Direct in, instrument input
  • Output control
  • Led level indication
  • 19" rackmountable
  • Ground lift switch
  • Internal iec 115v/230v power inlet