Warm Audio
Warm Audio WA-47jr Black
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Warm Audio WA-47jr Black is a transformerless large-diaphragm FET condenser microphone inspired by the classic U47 FET design. Combining vintage tone with modern precision, it offers a smooth, detailed sound with extended frequency response and low self-noise, making it a versatile choice for vocals, drums, acoustic instruments, and broadcast applications.
The WA-47jr uses a custom K47-style capsule with a gold-sputtered 1" diaphragm that accurately captures sonic detail with natural midrange warmth and balanced high-end response. Its transformerless discrete Class A circuit ensures an exceptionally clean signal path, delivering fast transient response and extended dynamic range. Built with high-quality components such as Toshiba FETs, WIMA film capacitors, and Panasonic electrolytics, the microphone achieves professional clarity and consistency across all sources.
Offering three polar patterns—cardioid, omni, and figure-eight—the WA-47jr provides flexibility for a wide range of studio applications. A -10 dB pad switch allows recording of high SPL sources such as guitar amps or drums, while the 70 Hz high-pass filter reduces low-frequency rumble and proximity effect. The solid brass body with matte black finish ensures durability and resistance to interference. Each microphone is individually tested and hand-inspected to deliver reference-grade performance at an accessible price point.
KEY FEATURES
- Based on the legendary U47 FET design with modern transformerless circuitry
- Custom K47-style 1″ gold-sputtered dual-diaphragm capsule
- Discrete Class A circuit using Toshiba FETs and premium capacitors (WIMA, Panasonic)
- Three selectable polar patterns: cardioid, omni, figure-eight
- High-pass filter at 70 Hz and -10 dB pad switch
- Extended frequency response with natural midrange character
- Low self-noise and high dynamic range for transparent recording
- All-brass body with durable matte black finish
- Ideal for vocals, acoustic guitar, percussion, and instruments
- Includes shockmount and hard case
TECHNICAL SPECIFICATIONS
- Type: Large-diaphragm FET condenser microphone
- Capsule: Custom K47-style dual-diaphragm, 1″ gold-sputtered
- Polar patterns: Cardioid, Omni, Figure-Eight
- Frequency response: 20 Hz – 20 kHz
- Sensitivity: -34 dB (20 mV/Pa)
- Maximum SPL: 134 dB (144 dB with pad)
- Equivalent noise level: 10 dB(A)
- Pad: -10 dB
- High-pass filter: 70 Hz, 12 dB/octave
- Output impedance: 100 Ω
- Power requirement: 48 V phantom power
- Dimensions: 165 mm × Ø 50 mm
- Weight: 450 g
- Included accessories: Shockmount, hard case, microphone pouch
