de Lisle Amp-Speaker Selector V3 Cabinet Signal Router Switcher with Attenuator Loop

This unit is an awesome amp-speaker selector in MINT condition. I'm only selling it because I bought another amp and needed to step up to a larger unit. I was so happy with this one that I bought another de Lisle. Dead quite and requires no power to use. One cool feature they don't promote is that, instead of running an attenuator through the send/return, you can run the send to a load box for silent recording. So you can route your amps into up to 3 speaker cabs OR a load box -- all with the turn of a knob. Very cool and handy. FROM THE MANUFACTURER: The de Lisle Amp-Speaker Selector V3 was designed as a studio tool to conveniently route the output of up to three amplifiers to various speaker cabinets. This version features a loop to allow a single attenuator or similar device to be easily shared between any combination of the amps and speakers. Just connect your amps' outputs to numbered amplifier inputs on the rear panel. Then, hook up your speaker cabinets. Routing the signals is simple: the three Speaker switches on the front panel correspond to the three speaker connections. The 0-3 positions of each bank match that speaker cabinet to an amplifier (or 0 for not connected). Connect your attenuator's input to the Send jack and its output to the Return jack. Use the front panel Send knob to connect the attenuator to any of the amps' outputs. Then, set one or more of the Speaker knobs to the return arrow icon (position 5). Use multiple amps at the same time, swap speaker cabinets between amps, share a single attenuator or connect multiple speakers to an amp in parallel. Signal and ground connections from the amps are always isolated from one another. And as a precaution, the unused amps see a load.