This flexible switcher is in mint condition, and will enable you to switch multiple multichannel audio sources in sync with HDMI video inputs.
This was used by me with a mint Proceed AVP2+6, also listed for sale, and can be purchased with that unit and another pair of accessories *at a substantial discount,* or as a standalone. Sale includes OEM remote control, power supply and OEM shipping carton. I don't have the original user manual, but I'll provide a PDF to the buyer.
Asking $150, including USPS Priority Mail shipping and PayPal fees.
Please see my veteran and perfect A'gon feedback and buy with confidence.