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Warm Audio WA73 Single Channel British Mic Preamp

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Warm Audio WA73 Single Channel British Mic Preamp overview from GAK

Hailed by many as the preamp that defined the rock & pop tone for a number of decades, the 73-style mic pre is an industry legend. Warm Audio's latest collection of 73 pre's the "WA73 Family" is comprised of single and dual channel '73-style preamps both with and without EQ, each one a carefully constructed, professional-grade unit that pays tribute to British audio history.

The 19" rackable WA73 is a versatile workhorse with the vintage tone and sonic character of early '73 preamps, able to work with a vast array of microphones including condenser, dynamic and ribbon mics. The WA73 sounds fantastic dealing with a range of audio sources, from vocals, acoustic and electric guitar, bass, keys, drums, orchestras and more. Furthermore, the WA73's can act as a tonal shaping tool to run partial or complete mixes through. Equipped with a fully discrete Carnhill Transformer balanced signal path and a solid 80dB of gain, the WA73's can handle any challenge thrown at them.

In keeping with the traditional construction methods of the original 73's, the WA73 range is fully hand-wired, many claiming that the distinctly "British" tonal quality is the result of this construction method.

Inside the WA73 you will find superbly crafted UK Custom Carnhill signal transformers. These transformers are based closely on the earliest versions found in vintage 73's, hailed as having a fluid nature that saturates smoothly when dealing with high input levels. The result is a colourful and musical preamp that produces beautiful audio.

Warm Audio has paid particular attention to the capacitor and output transistors us in '73 style circuits, understanding what components made up this area of the preamps of yesterday is a fundamental aspect of the British tone. On the WA73's, Warm Audio use tantalum and polystyrene capacitors in the signal path with a transistor that handles high gain notably better than most other '73-style amps.

The WA73 Single Channel preamp's front panel features a TONE button that changes your input transformer impedance for varying the tonal quality of your recording, to the right you will also find a 4 position inductor based high pass filter with options at 50, 80, 160 and 300Hz. Also on the front panel is direct in instrument input, 48v phantom power switch, input switches and LED level indication lights (coloured).

A single XLR mic input is found on the right of the rear-panel adjacent to a line input, TS insert send/return and XLR & TRS line outputs (with independent output control). 

  • 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" rackable
  • Ground lift switch
  • Internal IEC 115v/230v power inlet



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GAK.CO.UK LTD is registered in England and Wales 04578270. Registered office: 30 - 34 North Street Hailsham East Sussex BN27 1DW GAK.CO.UK LTD acts as a credit broker and only offers credit products from Secure Trust Bank PLC trading as V12 Retail Finance. GAK.CO.UK LTD is an appointed representative of The Guitar Amp and Keyboard Centre Limited which is authorised and regulated by the Financial Conduct Authority. GAK.CO.UK LTD FCA registration number is 731400. The Guitar Amp and Keyboard Centre Limited FCA registration number is 684977. Credit provided subject to age and status

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