JX44 Air Control™ Specifications

The Radial JX44 is a combination guitar input selector, signal distribution amplifier, effects router, direct box and Reamper. With so many ins and outs, it is somewhat difficult to break down the specifications as each of these functions serve a purpose on their own. Given the fact that the JX44 combines 5 devices at once, for the live touring tech the single most significant spec may well be noise. The JX44 does an exemplary job at keeping noise levels down.

Click to view larger.
Specifications  
Specifications are subject to change without notice.
Audio Circuit Type: Active 100% discrete class-A with transformer isolation
Frequency Response: 20Hz ~ 20kHz (± 2.5dB)
Signal to Noise Ratio: 106dB (0dBu input)
Dynamic Range: 118dB (unbalanced input to unbalanced output)
Noise Floor: -106dBu (unbalanced input to unbalanced output)
Maximum Input: +12dBu (unbalanced input to unbalanced output)
Total Harmonic Distortion: 0.008% @ 1k (unbalanced input to unbalanced output)
  0.001% @ 1k (balanced DI mic-level output)
Intermodulation Distortion: 0.02% @ -20dBu (unbal. input to unbal. output)
Input Impedance: Variable from 10k Ohms ~ 1 megaOhm
Output Impedance: ¼" unbalanced: 3k Ohms; XLR balanced: 150 Ohms
Features  
Instrument Inputs: Four ¼" unbalanced selectable inputs
Reamp/SGI Input: Bal. XLR line-level X-AMP Reamping / SGI input
Amplifier Outputs: Four ¼" programable and isolated amplifier outputs
Direct Box Output: Isolated mic-level out with phase rev. & gnd lift
SGI Output: Bal. SGI (Studio Guitar Interface) output
Tuner Output Unbal. ¼" tuner output
Effects Loop Unbal. ¼" effects loop I/O
Phase Reverse: 180º polarity reverse (amplifier outputs)
XLR Configuration: AES standard (pin-2 hot)
General  
Power: 15V 1A adapter included
Construction: 14 gauge steel chassis & outer shell
Finish: Durable powder coat
Size (L x W x H): 17.5" x 6" x 1.75" (44.5cm x 15.25cm x 1.75cm)
Weight: 10.7lb (4.8kg)
Shipping Size (L x W x H): 22" x 10.375" x 4.5" (55.9cm x 26.4cm x 11.4cm)
Shipping Weight: 11.3lbs (5.1kg)
Warranty: Radial 3-year, transferable
Accessories  
JR5 Footswitch Floor pedal selects inputs or outputs and programs
SGI44 Long distance pedalboard interface
Conditions: For use in dry locations only between 5°C and 40°C