Hello. I have an older Yamaha receiver that does not have an digital sat/dtv coax audio input. It only has a dvd/ld digital coax audio input. It does have an optical input for sat/dtv. The HR34 only has hdmi and digital coax audio output (no optical). Should I get an Coaxial (RCA) to Optical Toslink Digital Audio Converter? I've seen them for $11 online. Or should I upgrade an hdmi receiver, which is a little out of my budget? Thanks for any input!