This cayman unit was tested and works, however there isn't a remote with it, so it's stuck at the setting I received it with. It also has a ripped woofer on the bottom of it. The volume was low when testing, but  the woofer still worked, I'll have photos of it.  the volume setting is stuck where it is without a remote. The Cayman Media Labs HD-11 5.1 A/V Receiver is a universal, black rectangular unit made of plastic. It features compact wired connectivity and weighs 25 lbs. This A/V receiver by Cayman is designed to provide high-quality audio and video output for your home entertainment system. With its universal compatibility and sleek design, this unit is a reliable choice for enhancing your home audio experience.