Warm Audio WA-47 Large Diaphragm Tube Condenser Studio Microphone

Timeless Studio Sound

The WA-47 is an authentic reproduction of the most coveted tube microphone, hailed as the grandfather of professional recordings and timeless studio sound. Production of the U47 microphone ran from 1947 - 1963 after initially debuting in Berlin in 1947. The original U47 microphones quickly became the industry standard for professional recordings by the early 1950's and still runs the show today due to the added sensitivity of the mic which boosts the presence and detail of contemporary recordings. Some of the most famous albums of all time feature vintage 47 microphones, with an artist roster that goes from Sinatra to Adele with many a few small acts like The Beatles in between. Vintage 47-style microphones raised the bar for what's possible in recording and the WA-47 is meticulously designed with premium components to authentically reproduce that coveted sonic profile and feature set at an unprecedented price.

Legendary Sound, Premium Build

The WA-47 is a serious tool for professional recording. No corners were cut in bringing the authentic sound of vintage 47-style microphones to everyday artists. Starting at the top, the WA-47 features a gold-sputtered, large, dual-diaphragm, dual-backplate K47-style capsule. The capsule in the WA-47 captures exceptional detail throughout the frequency curve, delivering professional studio sound. Moving down from the capsule, the WA-47 features a premium 5751 vacuum tube that creates extra warmth to achieve that signature analog tone. Completing the circuit is a custom-wound TAB-Funkenwerk (AMI) USA output transformer. The output transformer pushes a wide signal with incredible detail captured by the capsule, delivering authentic analog sound. The WA-47 uses premium WIMA, Solen French, and polystyrene capacitors throughout the circuit allowing ideal signal transfer for optimal performance. Our meticulous R&D process allowed us to dial in a true-to-original output level and frequency response that matches the performance expectations of world-class audio engineers and recording facilities.


  • Custom K47-Style Capsule Recreation
  • Capsule Makeup: Gold Sputtered, Dual Large Diaphragm, Dual-Backplate, 6 Microns NOS Mylar (PET Film)
  • TAB-Funkenwerk (AMI) USA Output Transformer
  • Premium 5751 Vacuum Tube
  • Wima, Solen French, and Polystyrene Capacitors
  • Self-Noise: 11 dBA
  • Polar Patterns: 9 Patterns - Cardioid, Omni, Figure-of-Eight + 6 Mixed Patterns
  • Dynamic Range: 130 dBA
  • Maximum SPL: 140 dB (<0.5% THD)
  • Dimensions: 8" x 2.75" (20.3cm x 7cm)
  • Frequency Range: 20 Hz ~ 20 kHz
  • Output Impedance: 200 Ohms
  • Rated Load Impedance: > 2 kOhms
  • S/N Ratio: 82 dBA
  • Equivalent Noise: 10 dBA (IEC651)
  • Gotham 5 Meter GAC-7, 7-Pin Tube Microphone Cable
  • Total Weight: 9 lbs.
  • Mic Diameter: 60mm
  • Mic Length: 254mm
  • Included: Microphone, Wood Box, Power Supply Unit, Shockmount, Gotham 7 Pin GAC-7 Cable, IEC Power Cable