APEX ASB1 A/B or Y Switcher Box
The Facts about Signal Switching
A/B-Y switching works two ways. It lets you switch a common source signal (guitar, bass or keyboard) between two amplifiers or amp channels. Or conversely, it lets you switch two source signals (eg, two different guitars) into the same amplifier. A good quality A/B- Y switcher will also provide LEDs or other indicators to show whether A, B or Y routing is in effect. The Y routing combines both the A and B outputs in parallel so that two amplifiers can be driven at once.
About the APEX ASB1:
The ASB1 provides full A/B-Y switching facilities, plus parallel Common in/out jacks.
•A and B LEDs illuminate to indicate selected signal routing. Both LEDs illuminated indicates Y routing.
•Dual footswitches permit selective A/B switching or combining both A&B as with a Y adaptor.
•Dual Common jacks permit connecting something in parallel with the input source – perhaps a guitar tuner.
•9-volt battery is supplied
•Dimensions: 3.75 x 2.5 x 1.5 inches (90mm x 63mm x 40mm)
•Weight: 1lb (454g)
Usage
One instrument switching between two amplifiers
a)Plug your instrument cable into one of the jacks marked Common. If you have a guitar tuner you may connect it to the other Common jack with an extra guitar cord or shielded patch cable.
b)Using two more shielded cables connect the A jack to the input of amp A and the B jack to the input of amp B.
c)Depress the A/B footswitch to select amplifiers. One of the two LEDs will illuminate to tell you which amp is selected.
d)To get both amps working at once, depress the Y footswitch. When both amps are working, both LEDs will be on.
Two instruments being selected for one amplifier
a)Using shielded guitar cords, plug one instrument into the A jack and the other into the B jack.
b)Using a third shielded cable, connect one of the Common jacks to the input of the amplifier.
c)Now depress the A/B footswitch to select the desired instrument. Please note that is not generally advisable to use the Y function in this setup (i.e. to have both instruments going into the amp at once).
d)The LEDs will indicate that instrument A or B is connected to the amplifier.
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