EAN: 860191002197
Offered here in a black finish, the Warm Audio WA-47jr is a large-diaphragm FET condenser microphone designed to provide the tonal characteristics of classic solid-state U47 microphones for vocalists, musicians, and recording engineers in home, project, and commercial recording studios. Thanks to three polar patterns—cardioid, omnidirectional, and figure-8—selectable from a switch on the front of the body, its versatility allows it to excel at anything from dry, close-up vocals to ambient room sounds. A -10 dB pad switch raises the maximum SPL from 147 dB to a high of 157 dB, enabling safe use when miking kick drums and cranked guitar and bass amps. Excessive low frequencies from proximity effect are easily reduced via the high-pass filter, which rolls off lows below 70 Hz.
The K47-style capsule reproduction features dual gold-sputtered, 6-micron Mylar diaphragms with a single backplate. The fully discrete signal path includes Toshiba FETs, WIMA film capacitors, and Panasonic electrolytic capacitors to deliver the clean tone associated with transformerless microphones. With a gold-plated XLR 3-pin connector and operability via 48V phantom power, it is compatible with most mixing consoles and mic preamps. It comes with a vibration-reducing shockmount and a compact hardmount to allow flexibility in placement and positioning.
Custom Capsule
The WA-47jr utilizes a custom reproduction of the vintage K47-style capsule that was used in the classic U47 microphone—designed with the same pattern and frequency response. Warm Audio s version of this capsule (model WA-47-B-80v) is carefully manufactured by an Australian capsule manufacturer whose precision and consistency allows sonic replication of the most important piece of this classic style of microphone.
Low Noise
The WA-47jr s discrete signal path pairs with the true U47-style capsule to obtain a very similar tone to the classic U47 microphone. The low self-noise of only 9 dBA enables pristine capture of quiet sound sources.
Tone-Impacting Components
The WA-47jr incorporates a modernized and simplified circuit design. Toshiba FETs, WIMA film capacitors, and Panasonic electrolytic capacitors contribute to the signature tone of the mic.
Configuration Flexibility
Three polar patterns and a -10 dB pad enable versatility for close and distant positions and loud and quiet sources. The 70 Hz high-pass filter aids in reducing rumble, proximity effect, and excessive low frequencies.
Features at a Glance
- Updated transformerless version of the highly coveted classic 47 microphone
- Custom-made Warm Audio K47-style 1.3 capsule (model# WA-47-B-80v)
- Gold-sputtered, dual large diaphragms (6-micron Mylar) with a single backplate
- Fully discrete signal path, Toshiba FETs, Wima film capacitors, and Panasonic electrolytic capacitors
- Cardioid, figure-8, and omnidirectional polar patterns
- 70 Hz high-pass filter
- -10 dB pad
- XLR 3-pin output
- Requires 48V phantom power
- Includes shockmount, hardmount, and pouch
Warm Audio WA-4 JR Specs
Microphone
| Form Factor | Large Diaphragm Mic / Stand/Boom Mount |
| Intended Sound Sources | Vocals, Instrument |
| Sound Field | Mono |
| Operating Principle | Pressure Gradient |
| Capsule | Condenser |
| Diaphragm | 1.3" / 34 mm |
| Polar Pattern | Cardioid, Figure-8, Omnidirectional |
| Pattern Selection | Switched (Adjustable on Mic) |
| Tone Adjustment | None |
| Gain Adjustment | None |
| Indicators | None |
| Windscreen | None |
Performance
| Frequency Range | 20 Hz to 20 kHz |
| Maximum SPL | 147 dB SPL (1 kHz, .5% THD, 1-Kilohm Load) 157 dB SPL (1 kHz, .5% THD, 1-Kilohm Load, with Pad) |
| Impedance | 100 Ohms |
| Load Impedance | ≥ 1000 Ohms |
| Sensitivity | -40 dB |
| Dynamic Range | 138 dB A-Weighted |
| Signal-to-Noise Ratio | 85 dB A-Weighted |
| Equivalent Noise Level | 9 dB A-Weighted |
Connectivity
| Headphone Connector | None |
Power
| Operating Voltage | 48 V (Phantom Power) |
Physical
| Color | Black |
| Mounting | Mic Clip/Stand Adapter, Shockmount (Included) |
| Included Case | Zipper Pouch |
| Included Filters | None |
| Dimensions | ø: 2 x L: 8.3" / ø: 5.2 x L: 21 cm |
| Weight | 1.1 lb / 0.5 kg |
Packaging Info
| Package Weight | 3.76 lb |
| Box Dimensions (LxWxH) | 11.1 x 10 x 6" |
In the Box
- Warm Audio WA-47jr Large-Diaphragm FET Condenser Microphone (Black)
- Shockmount
- Hardmount
- Zippered Storage Pouch
- Thread Adapter
- 2-Year Manufacturer Warranty
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