Diamond Amplification MAC-2 - Manual (Page 6)

Introduction
Thank you for purchasing a MAC-2. This product is designed to add
MIDI capability to your guitar amplifier. With a MAC-2, you can use a
MIDI footswitch to control your amplifier and all of your MIDI-
enabled effects, giving you the ability to switch amplifier channels and
effects with the tap of a single button.
The MAC-2 is designed to work with the full line of amplifiers by
Diamond Amplification. It will also work with any amplifier that uses
four (or fewer) standard ¼” tip-to-ground switching jacks and can be
used with “mono” or “stereo/TRS” type jacks or switching controls.
Each switching jack is electrically isolated from the others, and relays
are used for switching to insure that the MAC-2 is compatible with as
many amplifiers as possible.
Additionally, the MAC-2 can control channel switching or feature
switching effects (many effect units allow bypass, channel switching,
feature activation or similar) and it can control these effect features
along with your amp giving you maximum flexibility.
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