Key Features
- Easy switching between four guitars and two amps
- Drag control load correction to optimize impedance for magnetic pickups
- Individual input trims to level match signals
- Transformer isolated to eliminate ground loops
DISC Radial JX42 Guitar and Amp Selector Overview
Switch with ease. The Radial JX42, a compact switcher that is used to matrix four guitars and two amps in the studio or on a live stage. Surprisingly powerful for a unit that is small enough to neatly sit on top of your amp, connecting the optional JR-5 or JR-2 footswitches lets you rack mount the JX42. If you need a compact, powerful guitar and amp control centre, the JX42 packs a lot of functionality into a small shell.
Product Ref: 58228
Full Description
View Full DescriptionConnections & Applications
Starting with the front panel, the four input channels feature 'radio-style' on-off switches that immediately turn the previous channel off when the new channel is selected. These are complemented with easy-to-see LEDs for visual feedback on dark stages. Switching is done using opto-resistive couplers that ramp up and down the signal, eliminating any popping that could otherwise occur. This is particularly important when mating the JX42 with high gain amps and concert-level PA systems.
Inside, Radial's award-winning 100 discrete class-A buffering circuit is employed to ensure absolute signal quality is maintained. Each input channel also sports a dual function 'set and forget' potentiometer that can be assigned as either a level control to match various active or passive guitar or bass signals, or can be set to Drag for precise load correction when using passive magnetic pickups. Drag control replicates the tone and feel as if connected directly to a guitar amp. The potentiometers are recessed in order to leave the front panel clear of obstructions so that they are not accidentally changed during a busy concert.
Robust and Durable Construction
Made from 14 gauge steel, this compact switcher begins with Radial's trademark bookend design. This creates a protective zone around the switches and knobs to safeguard against the harsh environment of professional touring. The unique I-Beam construction adds tremendous rigidity to protect the internal circuit board from torque which could lead to premature cold solder joints. Optional rack ears allow one or two JX42s to be rack-mounted in a single 19" rack space.
Specifications
- Audio circuit type: Class-A BiFET buffering amplifier
- Dynamic range: 112dB
- Gain- input to all outputs: -1.5dB
- Equivalent noise input: -103dB
- Intermodulation distortion: 0.04
- Maximum input: +11dBu
- Total harmonic distortion: 0.002 @ -20dBu
- Input impedance: Drag control- Variable from 22k to 500k
- Output impedance: 1000Ω
- Phase deviation: 5° @ 50Hz
- Construction: 14 gauge steel chassis and outer shell
- Dimensions: 114(W) x 57(H) x 147(D)mm
- Weight: 1.3kg
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