Radial JX42 Compact Switcher

Radial's latest, the JX42 Compact Switcher ($349), is used to matrix four guitars and two amps in the studio or on a live stage.
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Radial's latest, the JX42 Compact Switcher, is used to matrix four guitars and two amps in the studio or on a live stage. Housed in a 14 gauge steel chassis, this compact switcher has optional ears for one or two JX42s to be rack-mounted in a single 19-inch rack space. Its four input channels feature on-off switches that immediately turn the previous channel off when the new channel is selected. Switching is done using opto-resistive couplers that ramp up and down the signal. Inside, Radial's all-discrete Class A buffering circuit is employed, while each input channel provides 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.

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Connection are via standard quarter-inch guitar jacks on the rear panel; each input is accompanied by a dedicated thru output, allowing a guitarist to mate a particular guitar with a specific amp or SGI extender to feed a distant pedalboard. When used with bass, the thru-put can be used to feed a direct box to send a clean signal to the FOH position. There are two main stage amp outputs, of which the B output is transformer isolated to eliminate hum and buzz caused by ground loops. In addition to the front panel switches, instrument selection may be accomplished via an optional JR5 foot switch or the new MR5 MIDI translator. Selecting the amps may be done using a front panel AB selector switch or by connecting the optional JR2 remote footswitch via a TRS jack. Once connected, the JR2 derives its power from the JX42 which illuminates the AB select and mute LEDs. A dedicated tuner out mates with the mute footswitch for quiet on-stage tuning.

Radial Engineering

http://www.radialeng.com