Warm Audio
Warm Audio WA-47
Large-diaphragm tube condenser (5751), 47-style capsule, transformer output, nine patterns switched on the power supply
Power External grounded power supply (IEC inlet, 115/230 V selector).
- Type
- Condenser
- Pattern
- Switchable, 3
- Self-noise
- 11 dB(A)
- Among 258 condensers: quieter than 78%
- Among 272 mics: quieter than 79%
- Max SPL
- 140 dB SPL
- Among 277 condensers: takes louder sound than 62%
- Among 343 mics: takes louder sound than 56%
- Rated range
- 20 – 20k Hz
vs 99 side-address condensers
Quieter than 58% of 99 side-address condensers.
Each stripe is one side-address condenser with a published self-noise, and each bar counts them; further right means quieter. This mic is in blue.
vs 107 side-address condensers
Takes louder sound than 60% of 107 side-address condensers.
Each stripe is one side-address condenser with a published max SPL, and each bar counts them; further right means it takes louder sound. This mic is in blue.
Instruments sources recommend it for most
Proximity effect: the bass it gains up close
From the manual, p. 8.
Graph without a title or measuring conditions, dB axis labelled "dB" from -20 to -70 with no reference; printed with "Cardioid at 1kHz" polar plot.
Dashed: outside the rated range, or simulated (other angles and distances). Hover or tap the graphs for values.
In practice
All specs
| From the manual | ||
|---|---|---|
| Capsule | WA-47-B-80v: custom reproduction of the 47-style (K47) capsule, made in Australia"Custom true 47-style capsule - WA-47-B-80v"; "designed with the same hole pattern and frequency response", "manufactured by an Australian capsule supplier" (p. 6). | p. 8 |
| Self-noise | 11 dB(A)also 10 dB(A), "Equivalent Noise: 10dBA (IEC651)". "Self-noise: 11dBA"; the same list also gives "Equivalent Noise: 10dBA (IEC651)". | |
| Max SPL | 140 dB SPL< 0.5% THD. "Maximum SPL: 140dB (<0.5% THD)". | |
| Signal-to-noise ratio | 82 dBA-weighted. "S/N Ratio: 82dBA". | |
| Dynamic range | 130 dBA-weighted. "Dynamic range: 130dBA". | |
| Output impedance | 200 ohm"Output Impedance: 200 ohms". | |
| Rated load impedance | 2000 ohmminimum. "Rated Load Impedance: ≥2kOhms". | |
| Rated frequency range | 20 Hz to 20 kHz"Frequency Range: 20 Hz~20 kHz"; no tolerance given. | |
| Powering | external grounded power supply (IEC inlet, 115/230 V selector)"External IEC grounded PSU"; voltage selector switch on the supply (p. 7). | |
| Connector | 7-pin cable to the supply; XLR-3 male output on the supplyFeatures 6 and 7 (p. 7). | p. 7 |
| Dimensions | 254 × 60 mm"Mic Diameter: 60mm"; "Mic Length: 254mm" (length × diameter). | p. 8 |
| Supplied accessories | power supply; IEC power cable; shock mount; Gotham GAC-7 7-pin cable (5 m); wooden box"Your WA-47 package includes; the WA-47 microphone, power supply, IEC power cable, shockmount, 7 pin Gotham Audio cable, and wood storage box." (p. 7) | p. 7 |
| Tube | 5751 (low gain, low noise) | p. 8 |
| Transformer | TAB-Funkenwerk (AMI) USA, large core with imported German laminations | |
| Cable | Gotham Audio GAC-7, 7-pin, 5 m | |
| Capacitors | Polystyrene coupling capacitor, WIMA film capacitors, Solen (French) output capacitor | p. 6 |
| Pattern switch | 9 positions on the power supply: cardioid, omni, figure-8 and 6 in-between patterns | p. 7 |
| Total weight | 9 lb (mic, power supply, shock mount, cables) | p. 8 |
Documents
- WA-47 Tube Condenser Microphone owner's manualEU edition
Copies kept by Mic Archive (manufacturers move and drop their documents), unchanged, with their original addresses. Each is © its publisher.
Recommended for
By recording guides, engineers and mic makers, for this mic or an earlier version of it.