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The Radial J+4 Balanced Signal Driver is a stereo preamplifier designed to accept unbalanced, low output devices such as instruments, computers, or CD players and boost the signal to a balanced +4dB level.
| Circuit Type | Active -10 dB to +4 dB line converter, transformer isolated | | Number of Channels | Stereo | | Frequency Response | 20 Hz to 20,000 Hz (?? 2 dB) | | Dynamic Range | 102 dB | | Maximum Input Level | +17 dBu @ 1 kHz, 1% THD+N | | Total Harmonic Distortion | 0.004% @ 1 kHz, +10 dBu output | | Phase Shift | 0.5?? @ 100 Hz: 4?? @ 20 Hz | | Input Impedance | 10k Ohms, unbalanced | | Output Impedance | 1.6k Ohms, balanced | | Transformer | JS2 Radial custom transformer | | HPF | -3 dB @ 100 Hz (12 dB/octave) | | Lift | Disconnects XLR pin-1 at isolated output | | Input Connections | 1/4' x2, RCA x2, 1/8' Stereo x1 | | Output Connections | XLR (pin-2 hot) x2 | | Construction | 14 gauge steel chassis & outer shell | | Finish | Baked enamel | | Power | Passive, no power required | | Dimensions (W x H x D) | 3.3 x 5.0 x 2' (84 x 127 x 48 mm) | | Weight | 1.55 lbs (0.70 kg) |
- Radial Engineering J+4 Balanced Signal Driver - Stereo Preamplifier
- 3-Year Limited Warranty, Transferable
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Features
- Increases Gain for Low Output Sources
- Boosts Signals to +4dB Line Level
- Transformer-Balanced XLR Outputs
- Versatile Inputs: RCA, 1/4 TRS, 1/8"
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