Once jokingly told my now wife when she was but my gf that buying me the Onkyo M504 was "marriage material". She called my bluff several years ago. Got the 304 pre, then the amp. Imagine my surprise when after I got it set up, that it sounded lifeless and tinny. I was crestfallen. I can't sell it, you married guys get my drift... I have had this amp connected to countless speakers, and I cannot find a good match with ANYTHING. Five minutes in, my ears are ringing like a bell. Shrill highs, dead-flat bass (comes out lifeless) and over-pronounced mids. ON every SINGLE speaker I connect to it. Recapped HPM 100's. JBL L100T's with the T3 crossover mod. 2 pair of Advents. Marantz Imperial 6's. 2 pair of Yamaha NS690III's. Epi Model 20's. Boston Acoustic A-70's. Infinity's. The list goes on and on.... I simply cannot stand the sound of this pre/amp. Could there be something wrong? It runs quite normal temp (warm to hot after a long drive) and looks to be in great shape. Or has anyone else had experience with this gorgeous to look at, painful to listen to combo? Someone here had a thread about recapping pre and amp, and sonically seeing a vast improvement, but my 40 year old Sony 7065A is stock, and has NEVER pained me like this one. I'm all out of ideas.