Midi control is realized via both Program Change commands as well as Controller Change messages found on most modern MIDI controllers. The ABCadabra does all switching with fast relays to make the audio connections so there is absolutely no modification of the audio signal. This makes it the the ideal device for tone purists who demand direct connections between guitar and amp when bypassing effects or switching between amps. The ABCadabra can also be used to select among two signal processors into a single amp when connected in reverse. In this mode it allows the use of midi to insert or bypass an effect allowing direct connection between your guitar and amp when the effect is bypassed.
The device can alternately be used as a true bypass mono effects loop, via a stereo to dual-mono cable. The ABCadabra (pronounced 'A/B Cadabra') is a midi-controlled relay-operated audio AB switch which can be used to connect your instrument to either of 2 amplifiers or to both amps together.
If you've been looking for a way to include AB Switching in your midi controlled guitar, keyboard, or effects rig, look no further. MIDI CONTROLLED AMP SELECTION, EFFECT SELECTION, EFFECT INSERTION
