pass x-350 vs x-600

No doubt, x-600 wins x-350 in every aspect. Especially, the improvement on bass control and sound stage stands out quite a bit. I upgraded to X-600 from Aleph 2. However, I have compared X-600 and X-350 before.

My room is 13x17 also but I have the speakers against the long wall which leaves me 9-10 ft. from the speakers and my head 6" from the back wall. No dedicated line but am using a audience cord, a x-2.5 pre and the emc-1 cd player. I dont mind spending the cash if the result is worthwhile.

I made the jump, and found it worthwhile. There was an improvement in the whole spectrum, but particularly in the lower frequencies. I am a believer that for large/inefficent speakers, the more power the better. I guess whether it is cost-effective for you depends on a lot of other things including size of room, other equipment, price of selling the x350 and acquiring the x600, etc. You might consider other improvements before making such a huge jump, such as a dedicated line, suitable power cord, etc.

Rob