The Y-Not – the ultimate A/B/Y switch

New! Version 2.0 now available!

The Y-Not A/B/Y MIDI switch is designed to be an all-in-one solution for switching one audio signal to two outputs.

Use the Y-Not A/B/Y to switch between two amps (for example, a clean amp and a dirty amp), or use it to switch between the inputs of a two input amp. The Y-Not is able to do this cleanly and transparently, without any of the problems associated with traditional A/B boxes.

The new Y-Not version 2.0 includes some very useful new features. One is programmable phase inversion on the B output. This allows you to run two channel switching amps simultaneously and adjust the phase on the fly so that every combination of channels is in phase. This was previously only available as a mod, but is now a standard feature.

Also new for version 2.0 is a "TRS In" switch that, when engaged, allows you to use a piezo-equipped guitar or other 1/4-inch TRS audio source. The tip of the TRS jack will be sent to the A output, and the ring of the TRS jack will be sent to the B output. This allows you to have automated switching between magnetic and piezo signals from your guitar, sending each signal to its own amp.

Features

  • The built-in buffer prevents tone loss when splitting your signal to two amps
  • A switchable isolation transformer prevents hum due to ground loops
  • MIDI controllable phase inversion fixes phase mismatch problems
  • TRS In switch allows switching between piezo and magnetic signals on a piezo equipped electric guitar
  • Can be controlled by any MIDI controller, and can be integrated into any MIDI-based rig
  • Rear panel switching jack allows the Y-Not to be controlled by other non-MIDI devices or a 2 button footswitch
  • High quality relays are used to provide the most compatible switching
  • Solid and durable with a powder coated aluminum case

Specs

  • One input, A and B outputs, relay switched
  • A and B outputs can be controlled by front panel buttons, remote
    switching jack or MIDI
  • High quality buffer, switchable from the front panel
  • Isolation transformer on output B, switchable from the front panel
  • Phase inversion switch on output B, switchable from the front panel or MIDI
  • Standard 5-pin MIDI input
  • 256 presets, arranged in 2 banks of 128
  • Responds to both MIDI Program Change and Continuous Controller messages
  • Dimensions: 4 x 4 x 1.5 inches (10.2 x 10.2 x 3.8 cm)
  • Weight: 10oz (300 g)
  • Power requirements: 9VDC @ 100mA

Photos

Videos

This video was made with our original model Y-Not, but the new model does the same thing – plus more!

Manual