Warm Audio WA47

Tube Condenser Microphone

CAP2: 0 £829.00
£690.83 ex VAT
Call or email for availability.

Vacuum tube large diaphragm condenser microphones reminiscent of the legendary U47 microphone

The Warm Audio WA-47 is an all vacuum tube large diaphragm condenser microphones reminiscent of the legendary U47 microphone and features similar transformer balanced and multi-pattern design.

The Warm Audio WA-47 is the result of careful research and development. Engineers at Warm Audio have compared two vintage U47 and used them as the benchmark for their own WA-47 with the aim to make it indistinguishable from the originals.

At its core, the WA-47 boasts a custom reproduction of the vintage K47 capsule designed in Austria with the same hole pattern and frequency response. Then comes a JJ Slovak JJ5751 vacuum tube made which offers lower gain and lower noise tube, forcing more of the capsule and TAB Funkenwerk transformer sound while offering a smooth and vintage tone.

The external power supply provides the clean current required to power the microphone and gives access to the nine polar patterns. The WA-47 connects to the power supply via a dedicated 7-pin XLR cable designed by Gotham Audio which helps preserve all the top end presence and overall size of the recorded image.

Warm Audio WA-47 Main Features:

  • Custom true '47 capsule reproduction (k47 style) - Model# WA-47-B-80v
  • Capsule makeup: Gold sputtered, dual large diaphragm, single backplate, 6 microns NOS mylar (PET film)
  • TAB-Funkenwerk (AMI) USA output transformer
  • JJ Slovak 5751 vacuum tube
  • Gotham 5 meter GAC-7, 7-pin tube microphone cable
  • Wima, Solen French, and Polystyrene capacitors
  • Polar Patterns: 9 patterns - Cardioid, Omni, figure-of-eight + 6 mixed patterns
  • Self-noise: 11dBA
  • Dynamic range: 130dBA
  • Maximum SPL: 140dB (<0.5% THD)
  • Frequency Range: 20 Hz~20 kHz
  • Output Impedance: 200 ohms
  • Rated Load Impedance: ≥2kOhms
  • S/N Ratio: 82dBA
  • Equivalent Noise: 10dBA (IEC651)
  • External IEC grounded PSU
  • Includes: Microphone, Wood box, PSU, Shockmount, Gotham 7 pin GAC-7 cable, IEC power cable
  • Total Weight - 9 lbs
  • Mic Diameter: 90mm
  • Mic Length: 254mm

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