Is the D50 $140 worth of better, would this noob hear any difference ?
So I take it you're referring to a speaker type that requires more WPC and power? What is it you like about that type of set up ?
From what I see you don't need anything except a set of RCA cables ,RCA audio out from TV to Tuner in on your Marantz and your done ,a $5 fix .
Possible, yes, but the TV's in-built DAC is almost certainly trash.
Why would you say that ?quality DAC chips aren't expensive and have been put in nearly every flat screen TV ,nobody in our hobby should assume something will sound bad & neddlessly spend $ before listening to what they have ,his TV DAC could be the best sounding chip set made .
The digital part of a DAC is easy. A substantial part of the quality of a DAC is the analog circuit connected to the output of the dac chip. And it is the analog circuit that differs the most between equipment. I would not expect the television to contain an audiophile quality analog circuit because it does not add value to the TV for the typical purchaser.