Warm Audio

WA-273 EQ Dual Channel British Mic Pre with EQ

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Warm Audio WA273-EQ - Dual-Channel British-Style Mic Pre with EQ

Engineers and producers universally list the classic 1073 as a favorite, go-to mic pre. Now Warm Audio has painstakingly recreated these original British benchmark performers in their affordable WA73 Family preamps available with and without EQ using custom UK-made transformers and pots, tantalum and polystyrene capacitors, all hand-wired and hand-assembled to help you get the biggest, smoothest sound out of any mic.

The WA73 Series includes:

  •   WA73 - Single-channel mic pre
  •   WA73-EQ - Single-channel mic pre with classic ’73-style EQ
  •   WA273 - Dual-channel microphone pre
  •   WA273-EQ - Dual-channel mic pre with classic ’73-style EQ

Real British Components
Warm Audio’s designers worked with Carnhill Transformers in Cambridgeshire, UK, to create faithful reproductions of the original, vintage transformers. Complex dual-concentric switch potentiometers in the EQ sections of the WA273-EQ are also made in the UK by Blore Edwards (serious, military spec suppliers). Every aspect of these units is intended to help you achieve the smoothest, warmest vintage tones from every ribbon, condenser and dynamic mic in your collection.

Warm Audio has made a name by recreating classic gear at affordable prices, and the WA73 series British microphone preamps is only going to add to the company’s reputation—and add to your sound.


  • Dual-Channel, Class A, '73-style British Microphone Preamp with EQ
  • UK made Carnhill Transformers
  • UK made - Blore Edwards EQ dual-concentric switch potentiometers
  • 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
  • Inductor based 3-band EQ
  • Low Band Boost/Cut - 35, 60, 110, 220 Hz
  • Mid Band Boost/Cut - 360, 700, 1600, 3200, 4800, 7200 Hz
  • High Band Boost/Cut - 10, 12, 16 kHz
  • Additional high band frequency EQ points added (compared to vintage 1073)
  • 4 position inductor based hipass filter - 50, 80, 160, 300 Hz
  • XLR mic inputs (front & back)
  • Line level TRS input
  • TS Send/Receive insert jacks
  • XLR & TRS line level outputs
  • Direct In, instrument input
  • Output control
  • Led level indication
  • Freq response 20Hz - 20kHz +/-.5 dB
  • 19" rackable
  • Internal IEC 115v/230v power inlet

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