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The JR2/2 is a premium dual-channel microphone preamp designed for absolute transparency, extremely low noise, and uncompromising build quality. Each channel combines high-current phantom power with a direct signal path free of capacitors and transformers, ensuring perfectly linear phase and frequency response down to zero hertz. This design preserves resolution and openness without coloration or low-end roll-off.
Every channel features its own regulated +50V phantom supply, delivering independent power as if each microphone had its own external source. Carefully matched components guarantee outstanding balance, maximum noise rejection, and ultra-clean signal integrity.
Gain is controlled via a 24-step rotary switch covering +7.5 to +65 dB, with channel matching within ±0.1 dB. With massive headroom and precise control, there is no need for pads. Outputs include a balanced XLR main out capable of driving long cables or difficult loads, plus a separately buffered TRS auxiliary out for added routing flexibility.
With its combination of technical precision and effortless sound, the JR2/2 is equally suited to condensers, dynamics, and ribbon microphones – setting a reference standard for dual-channel preamps.
- Input Balance Precision: ≤ 0.01%
- Phantom Voltage: +50Vdc
- Phantom Current Reserve: 700mA/ch.
- Channel Crosstalk: <-160dB [10kHz]
- CMRR: -110dB [60 Hz, +60dB gain]
- CMRR: -100dB [10kHz, +60dB gain]
- Input Impedance: 3000Ω
- Distortion: 0.00094% [+30dB gain,1kHz, +24dBu out]
- SMPTE IMD: 0.0032% [250Hz+8kHz, 4:1]
- Max. Input: +22dBu [+7.5dB gain]
- Max. Output: +29.5dBu [10kΩ load, ≤ 0.0024% thd]
- Max. Output: +27.5dBu [600Ω load, ≤ 0.0024% thd]
- Bandwidth: DC to 500kHz [+0/-3dB]
- Spectral Accuracy: ±0.04dB [20Hz-20kHz]
- Linear Phase Deviation: 0˚ [20Hz]
- EIN: -138dBv [Rs=0Ω, 20-22kHz, A-weighted]
- EIN: -131dBu [Rs=50Ω, 20-22kHz, unweighted]
