I'm not one prone to sending things back. When I buy something I usually put my stamp on it and that's it.
Why hang on to them if you are unhappy with the way they sound? I have heard the M3s and I know they are not for me, I have the M22s and a set of M80s, if you like the more forward sound then send back the M3's while you can as the return shipping is free for the upgrade to the M22's, you will not regret it.
I never liked the sound I had from a low end Sony receiver I had briefly with the M22s it just seemed to lack power, I really had to crank up the volume knob to get it to work. That was when I spent a few more bucks and bought my first Denon, an 1804, and the SQ difference was night and day, well more the power available more than the SQ, as the Sony sounded ok as long as I had the gain turned up to about 2/3.
