The Radial JD7 is a combination distribution amplifier, direct box and Reamp. As such there are a myriad of specifications that one may look at when determining suitability. The Radial JD7 incorporates 100% discrete parts, class-A circuitry and Jensen audio transformers in the guitar signal path to deliver near perfect unity gain with plenty of headroom and low noise. The fidelity of the audio and ‘feel’ can only truly be judged by plugging it in and closing your eyes!
Specifications
Block Diagram
Graphs
| Specifications | ||
|---|---|---|
| Audio circuit type: | 100% discrete class-A with transformer isolation | |
| Number of channels: | 2 Input 7 Outputs | |
| Frequency response: | 20Hz ~ 20kHz (± 1dB) | |
| Dynamic range: | 125dB (unbalanced input to unbalanced output) | |
| Total harmonic distortion: | 0.05% @ 1k (unbalanced) 0.1% @ 1k (balanced) | |
| Intermodulation Distortion: | 0.2% @ -20dBu | |
| Input Impedance: | Variable from 10k Ohms ~ 1megaOhm | |
| Output Impedance: | ¼" unbalanced: 10k Ohms; XLR balanced: 150 Ohms | |
| Noise Floor: | -115dBu | |
| Maximum Input: | +13dBu (unbalanced) +23dBu (balanced) | |
| Features | ||
| Input pad, 180° polarity reverse, Ground lift, Drag Control, Effects Loop | ||
| Input Connectors: | 1/4", XLR | |
| Output Connectors: | 1/4", XLR | |
| General | ||
| Construction: | 14 gauge steel chassis & outer shell | |
| Size (L x W x D): | 17.5" x 6" x 1.75" (44.5cm x 15.25cm x 4.45cm) | |
| Weight: | 7.5lb (3.4 kg) | |
| Shipping size (L x W x D): | 22" x 10.375" x 4.5" (55.9cm x 26.4cm x 11.4cm) | |
| Shipping weight: | 8lb (3.63kg) | |
| Power: | +15VDC/400mA adapter included | |
| Conditions: | For use in dry locations only between 5°C and 40°C | |
| Warranty: | Radial 3-year, transferable | |
Frequency Response
What do these graphs mean? Learn what to look for and why it matters.
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