I have an swr 350x that started to sound "different" after trying out a power amp and hooking it up incorrectly in bridge mode and getting a weird popping and crackling noise (see the following thread near the end: http://www.talkbass.com/forum/showthread.php?t=180600) I have two edens a 210xlt and 115xlt both 8 ohms and I used the swr 350x as the preamp. After hearing that god awful sound I have gone back to just using the swr and I have been able to play at full volume. I did not change any settings on my amp at all but I'm getting much more mid range than I did before and I am not getting the same clean hi fi type sound the swr/eden combo gives me (and I love). Is it possible to blow speakers/tweeter just a little or if it was blown at all would I know? Could what happen effected the tube in my preamp section? Could it be coincidence that I just noticed it after this happened?