Originally Posted by Harbormon
I have owned a rarely used Yamaha HTR-5450 5.1 stereo receiver since 2002 and have recently bought a 2012 Samsung 46 inch 3D LED TV, 2012 Samsung 6500 3D Blue Ray and 2012 Polk RM700 surround sound speakers for a 2nd Home theater room. I can wire everything using traditional connections and optical cable.
My question is can I get good quality surround sound with this older Receiver or should I go ahead and buy a new receiver with HDMI inputs to make this a true 3D surround experience?
One thing Yamaha's of that era were very good at was including 5.1-channel external inputs with their receivers. Your Yamaha has the 5.1-channel input.
I'm not sure if the Samsung you purchased has a 5.1-channel analog output but that type of output is your best way to get *all* of the Blu-Ray audio formats into the Yamaha. You'll have 5.1-channel audio instead of 7.1-channel audio and your bass management won't be as good as a modern receiver but you'll have lossless audio and should sound better than S/PDIF optical or coax audio.
If the Samsung Blu-Ray does not have 7.1/5.1 channel analog outputs then you might consider returning that one and getting one that does. It's one way to keep that old receiver going.
BTW, I second the idea of upgrading your speakers first. No matter how good the receiver, the speakers would still be the deciding factor on how good everything sounds.