LCD display Remote control for GZDSP products (according compatibility list) Remote control for GZDSP 6-8X PRO Compatible with GZDSP 6-8X PRO Including connection wire Source selection Main level Subwoofer level Preset selection Mute function ( This ″X″ model does not allow you to choose ″coaxial input″. If you need coaxial then you need to buy GZDSP PRO remote instead ).