here is my delima............


I have a cj - 2500a, cj - pv 12, alon 4's,rotel 975. i have tube rolled my brains out, settling for amperex nos. I use tara labs vector 2's between the power and pre, ive tried different ic from audio art, to morrow, to audioquest for the other components, one makes the sound to thin, one makes the bass to boomy, I cant seem to get it just right. i use axiom tri wired speaker cable. the problem is i have this mid range, mid bass vacuum that i cant seem to get rid of. i wonder if my system is starting to degrade, after all it is an older system. or is this a product of lets say the speaker or amp/pre manufacture design. i did read some where that the older alons had a problem with the midrange on some of their speakers. just about every thing i could think of to remedy this problem but all i get is back to square one. i did recently have my local power compy come out and was told my box was only 100 amps. i did some calling around on that and was told my house could be under powered, which is just as bad. i have noticed that when i am playing my system and the heater comes on, the sound degrades. and i do notice the fluctuation like others in bad areas in sound from lets say 11:00 to midnight maybe(peak time) this hole in my midrange is not always there, it varies from day to day and time. i do notice that as i turn up the volume i tends to get worse. ive tried replacing all the drivers in my alons, but that lasted for just a while and then the problem came back. also when i turn up the volume, i get very little gain past say 11:00, after that the sound quality gets terrible. any help at all would be very much appreciated..............
kennesawjet
darn, I had researched your gear and posted a lengthy response with a multi-step plan that did not make it through somehow + I am too lazy to do it again.

In a nutshell...

Good news was you have a problem which is solvable, not a dilemma, which is not. That's a good thing.

Bad news is there is probably several things to do for better results starting with making sure all tubes are strong and operating properly (get them measured if possible) and optimizing speaker placement for best sound.

After that, I do not think you have the best amp to bring out the best in your speakers. That's a topic to keep in mind once you make sure what you have is set up and functioning its best first.

Lastly, but only after the others, a suitable Furman power supply to all devices save power amp would likley help take things to a higher level of detail dynamics and clarity once everything else is squared away prior.
thanks rockadanny im impressed, wow eggleston's. lots of out of the norm type stuff here too....
mapman, please if you can and when you feel up to it. post the whole thing. Im getting a feeling here I may be on to some thing.........thanks
KEnne,

That was the gist of it. Just the condensed version. ANy specific questions, just ask. Good luck + keep us posted as things unfurl.