Check the listing for details. de Lisle Deluxe 4x4 Multiple Amplifier Speaker Cabinet Selector Switch Router. Condition: New. Listed at 599.00 USD. The de Lisle Amp-Speaker 4x4 Deluxe was designed to improve workflow in the studio by eliminating the need to re-cable amps and cabs. This version expands on our previous designs by incorporating simultaneous input switching and a bypassable attenuator loop.Plug in your guitar / pedalboard and send it to any of the 4 connected amps by rotating the Amplifier dial. The amp's output is then sent to the selected speaker cabinet. We've also included an attenuator loop that allows you to easily connect your Ox, Fryette, etc. to any combination of amplifier and cabinet.The 4x4 Deluxe runs off a standard 2.1mm/5.5mm center negative 9VDC supply, which is boosted internally for increased signal headroom. Amplifier inputs are transformer isolated to prevent ground loops. Unused amps are muted at the input and switched to a protective load. Features: • Guitar / Pedalboard Input (1) • Amplifier Input (4) • Amplifier Output (4) • Speaker Input (4) • Attenuator Input (1) • Attenuator Output(1) • Attenuator Bypass Switch • Transformer Isolation • Internally Isolated DC Power Supply • Boosted Signal Headroom • Silver Relay Contacts with Gold Overlay • Protection Loads for Unused Amplifiers • Auto Muting of Unused Amplifiers • Aluminum Housing • Powder Coat Finish • Rubber Feet • Hand-Wired • 150W Maximum Power • Lifetime Warranty delisleguitar.com/manuals/DELISLE-SELECTOR-MANUAL-4X4-DELUXE.pdf