Warm Audio
Warm Audio WA-47jr
Large-diaphragm FET condenser, transformerless, 47-style (K47) capsule; omni, cardioid and figure-8, -10 dB pad and 70 Hz high-pass filter
Power P48 phantom.
- Type
- Condenser
- Pattern
- Switchable, 3
- Sensitivity
- −40 dBV/Pa
- Among 204 condensers: more output than 33%
- Among 311 mics: more output than 53%
- Self-noise
- 9 dB(A)
- Among 258 condensers: quieter than 86%
- Among 272 mics: quieter than 87%
- Max SPL
- 147 dB SPL
- Among 277 condensers: takes louder sound than 86%
- Among 343 mics: takes louder sound than 84%
- Rated range
- 20 – 20k Hz
vs 75 side-address condensers
More output than 18% of 75 side-address condensers.
Each stripe is one side-address condenser with a published sensitivity, and each bar counts them; further right means more output. This mic is in blue.
vs 99 side-address condensers
Quieter than 69% 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 86% 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 graph cardioid.
Product-page chart without a title or measuring conditions; relative dB, labelled +10dB to -20dB, 0 dB through the mid range.
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 | ||
|---|---|---|
| Sensitivity | −40 dBV/Pa (10 mV/Pa)"-40dB" (no reference printed; 10 mV/Pa is -40 dBV/Pa). | p. 6 |
| Self-noise | 9 dB(A)also 10 dB(A), "Equivalent Noise: 10dBA (IEC651)" (product page). "Self-Noise: 9dBA"; the 2019 manual (p. 6) also gives "Equivalent Noise: 9dBA (IEC651)", the product page 10 dBA. | |
| Dynamic range | 138 dBA-weighted (IEC 651). "Dynamic Range: 138dBA"; "(IEC651)" in the 2019 manual. | |
| Output impedance | 100 ohm"Output Impedance: 100 Ohms". | |
| Rated frequency range | 20 Hz to 20 kHz"Frequency Range: 20 Hz~20 KHz"; no tolerance given. | |
| Low cut | off, 70 Hz; 70 Hz"70 Hz High-Pass Filter"; slope not given (p. 2: "eliminates bass frequencies under 70 Hz"). | |
| Pad | −10 dB"-10 dB Pad". | |
| Supplied accessories | shock mount; hard mount; leather storage pouch"Includes: Shockmount, Hard Mount, Leather Storage Pouch". | |
| WA-47jr SE | A cardioid-only version without pad or filter: single-backplate K47-style capsule, -37 dBV (14 mV/Pa), self-noise 9 dBA, maximum SPL 147 dB, 100 ohm; hard mount and leather pouch | p. 58 |
| From the manual 2019 | ||
| Capsule | WA-47-B-80v: 34 mm K47-style, gold-sputtered dual 6 µm Mylar diaphragms; made in Australia"Custom made Warm Audio k47 style 34mm capsule (model# WA-47-B-80v)"; "gold sputtered, dual large diaphragm, single backplate, 6 microns mylar"; "manufactured by an Australian capsule supplier" (p. 3). The 2025 manual (p. 6) says "Dual-Backplate"; see status. | p. 6 |
| Max SPL | 147 dB SPL1 kHz, 1 kohm load, 0.5% THD; also 157 dB SPL, -10 dB pad. "Maximum SPL: 147/157dB (@1kHz 1kOhms 0.5% THD, 0/-10dB)"; the 2025 manual: "147/157dB (Without/With Pad)". | |
| Signal-to-noise ratio | 85 dBA-weighted (IEC 651). "S/N Ratio: 85dBA (IEC651)". | |
| Rated load impedance | 1000 ohmminimum. "Rated Load Impedance: ≥1kOhms". | |
| Powering | P48 phantom"48v phantom powered". | |
| Connector | XLR-3 male, gold-plated"3-Pin Gold-Plated XLR". | |
| Circuit | Fully discrete, transformerless; Toshiba FETs, WIMA film capacitors, Panasonic electrolytic capacitors | |
| Maximum output | 16 dBu at 1 kHz, 1 kohm, 0.5% THD | |
| From the product page | ||
| Weight | 499 gNot stated by the manufacturer: "Weight: 1.1 Lbs" (also in the 2019 manual), converted: 1.1 × 453.6 g. | p. 1 |
| Dimensions | 210 × 52 mm"Diameter: 52mm | Length: 210mm" (length × diameter). | |
Documents
- WA-47jr & WA-47jr SE manual2025
- WA-47jr FET condenser microphone manual2019, EU edition 2024
- Warm Audio WA-47jr & WA-47jr SEproduct page
- WA-47jr frequency chart, cardioidproduct page graph image
- WA-47jr frequency chart, omniproduct page graph image
- WA-47jr frequency chart, figure-8product page graph image
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.