2. amps-preamps
  3. 176131-121

if someone can help me......

just got my cj 2500a back from conrad johnson,  i have an et3 se to mate with it.  new tyler accoustic speakers.  not getting the sound that i was hoping for.  was waiting to get a 2550se but are hard to find now to pair it with.  am i doing something wrong here.  i read where if the amps arent paired right you tend to get a vailed type sound and thats what im getting.  no umph at all and i have to turn it up real loud to get that.  (bass is almost nonexistent, maybe there is to much to break in) tried tube rolling, new wires, different speakers, speaker placement sound is still the same.  i know there is so many smart people on this site and i have learned a lot reading your thoughts on almost everything. so if i can get some help solving this i would really appreciate it i know its something simple, i sold my pv 12, but if i need to go back to an older model preamp let me know and what is the best one, thanks..........

 

kennesawjet
czbbcl's avatar
czbbcl
1,752 posts
 

Sounds like it needed some break in time. I had an MF2500 converted to a 2500A and it took a few hours of playing to open up.

 

atmasphere's avatar
atmasphere
11,931 posts
 

@kennesawjet 

One speaker could be out of phase with the other. If this happens the system will behave as you describe. To see if this is the case, simply reverse the connections on the back of one speaker only. Play a track with good bass in it before and after- if this was the problem, the bass will be improved after the change.

This is a very common thing to have happen!!

kennesawjet OP
203 posts
 

2leftears,   fedex

havocman, thats what im thinking, but i switched out bacl to my old alons and same thing....

boxcarman,  and yes i redid the wires as well

itsjustme, no....

czbbcl,  i think you and havocman are right...

atmasphere, will try that, have a disk that aides in that..

 

itsjustme
682 posts
 

a quick test might save many hours of fruitless frustration - or expensive swap-outs. The out of phase speakers is worth checking and double checking.

paulcreed
565 posts
 

If you changed caps and resistors you need 200 to 400 hours before anything will start to come back to normal. If you put Teflon caps in they need a crazy amount of time. If you keep switching out wires it will also take 12 to 48 hours before things settle in again. I’ve moved speaker wires and it killed everything for 24 hours, everything was lifeless and flat. If you have new caps and moving interconnects and speaker wire it would sound just like you describe. I have a Conrad Johnson CAV 45 S2 and if I swap out wires it takes a while for everything to become big, detailed and enjoyable again. Same thing with any other amp I own. Run music on repeat for as long as it takes. It may be a few weeks. Break in is not fun.

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