I have Denon DCM-380 that I use as a transport, connecting through coax to an AVR-5803. The 380's mechanism is loud and slow. Plus the overall quality of the unit seems low. I've scoured audioreview.com and it seems that every changer that has a digital coax out is loud and slow. Can anyone recommend a 5 disc changer that operates, smoothly, quickly, discretely? And has a coax output? Thanks, Chris