User Manual

The ABC is designed to route one guitar to three amplifiers OR three guitars to one
amplifier. You can select or combine using three foot-switches. This allows for great
flexibility in amp tones or convenience of having multiple instruments ready to go. The
ABC is an affordable, practical and easy to use switching solution.
ROUTING 1 GUITAR TO 3 AMPS
Using a standard guitar cable, connect guitar to ABC IN/OUT jack. Then, using
standard guitar cables, connect jacks A, B & C each to the inputs of three amps.
You can now play any amp individually or combine them in any combination using
foot-switches.
Hooking some amps together via a switching device may create Ground Loop Hum in
one or more of the amps. If this occurs, please check out the Ebtech® Hum X (for
North America) or Hum Eliminator (Outside North America) at www.ebtechaudio.com.
You can also read more about why Ground Loops occur and how to properly diagnose
them.
ROUTING 3 GUITARS TO 1 AMP
Using a standard guitar cable, connect ABC IN/OUT to amplifier input jack. Then, using
standard guitar cables, connect 3 guitars to A, B & C jacks. You can now play any guitar
by turning on the foot switch for that guitar.
NOTE: ABC is not designed to allow you to play more than one guitar at the same time.
For that type of application check out the Morley ABY Mix.
POWER
The ABC is passive (no power required) and is True Bypass. However, for LED
indication, one 9V battery or optional Morley® 9V adapter is required. Quick Clip
battery door allows easy access to batter compartment.
WARRANTY
This product is warranted for one year from date of purchase. To obtain warranty
service, please email [e-mail]
IMPORTANT NOTE: THIS DEVICE IS INTENDED FOR USE WITH PASSIVE AUDIO
SIGNALS, DO NOT USE THIS DEVICE ON POWERED SPEAKER LINES OR YOU
WILL DAMAGE THE AMP AND/OR SPEAKER(s).
Morley® 100 High Grove Blvd Glendale Heights, IL 60139
www.morleypedals.com
Thank you for purchasing a Morley® ABC Switch.
We hope you enjoy using it as much as we enjoyed building it!