Warm Audio WA-47 Large-Diaphragm Tube Condenser Microphone (Titanium)
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Description
The Warm Audio WA-47 (Titanium) is a limited-edition finish of the WA-47 large-diaphragm tube condenser microphone, an authentic reproduction of the classic U47. The WA-47 uses a custom K47-style dual-diaphragm capsule, a JJ 5751 vacuum tube, and a TAB-Funkenwerk (AMI) USA output transformer to deliver deep bass, rich midrange, and smooth highs. Nine polar patterns selectable from the external power supply provide versatility from close-up vocal recording to distant room capture. This titanium-style finish version is functionally identical to the standard WA-47.
The JJ 5751 is a low-gain, low-noise tube that allows more of the capsule and transformer character to come through in the signal, giving the WA-47 the unmistakable tonal signature of a vintage 47-style microphone without modern coloration. The K47-style capsule (WA-47-B-80V) is manufactured in Australia with the same hole pattern and frequency response profile as the original, using 6-micron gold-sputtered NOS Mylar diaphragms. Nine polar patterns, selected from the external power supply, span cardioid, omnidirectional, and figure-8 with six intermediate positions for precise room interaction control.
The WA-47 circuit uses WIMA film capacitors, an imported Solen French capacitor on the output, and a polystyrene coupling capacitor. The 5-meter Gotham GAC-7 cable connecting the microphone to its power supply uses premium seven-conductor construction for reliable signal transfer.
Specifications
- Type: Tube condenser
- Capsule: K47-style (WA-47-B-80V), dual diaphragm, single backplate, gold-sputtered, 6-micron NOS Mylar
- Tube: JJ 5751
- Transformer: TAB-Funkenwerk (AMI) USA
- Polar patterns: 9 (cardioid, omni, figure-8 + 6 intermediate)
- Frequency response: 20 Hz to 20 kHz
- Max SPL: 140 dB (<0.5% THD)
- Output impedance: 200 Ohms
- Self-noise: 11 dBA
- S/N ratio: 82 dBA
- Dynamic range: 130 dBA
- Cable: Gotham 5 m GAC-7, 7-pin
- Finish: Titanium-style (limited edition)
- Mic dimensions: 254 x 60 mm (10" x 2.36")
- Total weight: 4.08 kg (9 lb) including PSU, shockmount, and cables
In the Box
- WA-47 microphone (titanium finish)
- External power supply with IEC cable
- Shockmount
- Gotham 5 m 7-pin GAC-7 cable
- Wood storage box