Could this be because the front speakers aren't good enough? I've been listening to music my whole life, and a lot of it in studios and so I've developed an ear for high quality sound. I feel that studio reference speakers (like those used for mixing) would be ideal for listening to music unlike the front speakers that I have, as they would be flat and "uncolored" with accurate tonal reproduction. Any tonal effects that I need can be adjusted through my AV or software eq.
In my current setup, I know that my onkyo does not have any pre outs (for Zone 1), so I can't create this solution at present. I need to buy an amp that has preouts for the studio monitors (similar to a sub pre out).
Now, does this make sense? Can I simply remove my front L+R speakers and replace them with the reference speakers for the sake of 2 ch music? Will they be good for movies? Will there by any compatibility issues that I need to think of?
The "but" comes from the fact that if you are using self powered monitors you will have to set them to be balanced with the rest of the system for non music listening. The other half is that the rest of the system will seem lacking with quality speakers replacing just two channels. I would recommend (if possible) to get at least three monitors and replace the center as well. You should also consider things like explosions, gun-fire and all around "not music" being played through a reference set of speakers may at high volume damage them.
Another path would be to again upgrade the AVR then invest in either a quality amp to send the front signal or even use most AVR's simple "B" channel and running a better set of speakers for just music or music/movies.
I use an Onkyo 805 and think it does very well when in Pure Audio. Speakers can make a tremendous difference in SQ.
Do you have a budget that you are trying to stay within? Size requirements? How big is your room?
I agree with F12 in that you should replace the L/C/R at the same time with a brand and line that are the same.
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