wow,such a lot of input,thx guys.ok
Fiesta 1st,"
Are you SURE that when you bi-amped the speakers after getting the amp back from servicing that you didn't forget to remove the second set of cables to the low and mid/hi inputs? "
the two amp to speakers where wired correctly,the cables are all marked up correctly left/right,plus minus, and they have different plug,banna and another type,so it impossible to mix them up,plus i dont ever use jumpers on the back of the speakers.
Sorry,not parts list available, he wouldn't give me one,i asked but got no reply on that score.he said it was getting too hot and fitted a fan after repair,which i wasnt keen on ,as i see that as covered up WHY it is getting too hot.
On doing re-work,all i have done is,removed the cables from the x-over and tested continuity from every component to the track on the PCB,every thing checked out,also i clean up the board with pcb cleaner,to remove flux stains.
change out from ,
4.2uf and the one you installed is 3.9uf,may not be correct,im still looking for the old caps,to verify the are the same type,like for like,as wilmslow may have updated that schem,as the speaker evolved with different drivers in it,as i have 100s and 100s of caps from different projects,im just struggling, at this moment to put my hands on them,
Rodman- the difference between using one and two power amps,i heard my system using two and heard it using one,i dont want to back to one,tow sounds amazing,one sounds ok,im sure you know what i mean,ive been evolving this system for 30 years,i dont want to loose 10 of them,sorry.
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Meanwhile: take the Wife OUT for some Meshana Skara or Mousaka and help her relax! Top it off with some Marudnik (are wild berries in season over there?) and make her love you, again!"
30 years of Hifi, i dont think one meal will cover that....you know how we get!!.but thx for the advise.
imahififan- no short,,the picture shows a little solder splash,where i DE soldered the other x-over cap to check it,but and in that picture the cap lead is not soldered down,but well spotted, that is studying these pics very closely thx.
So guys,it looks like we are running out of ideas,which makes me feel ,like it might be some thing else,as you guys would have picked up on it,
I know this may sound stupid,so when i test a speaker ,at the binding posts,disconnected,i cannot just put the mul/mtr in ohms and check to see what ohms the speaker is/are ??.as thats what ive done for years !!,im sure that when ,infact i know thats what i did when i found a a tweeter blown and what i did when i re-capped the x-overs and when ever i test a speaker to see what ohms it is,totest its ok ??.
just a little note,when these amps have blown,they have made the same noise both times ,through the speakers,just like a little pop,then the amp goes into alarm,exactly the same sounds,just thought i would through that in there,
when ive tested these speaker in the past,the way i have expalained ,i have never had 0ohms for the mid/high ,im pretty sure of that,im just putting it out there,
Another thing ,because the amp is getting hot{but they do run hot [Arcam Alpha 10Ps} and they are 25 years old,do you think i should give them a re-cap?,will this possibly bring them back into spec and cool down a little,.Anyway ill get back to my concreting.
cheers guys
