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hello and goodday iam new forum member

Posted: Thu May 15, 2008 12:28 pm
by jorik
but i know this nice forum and look arround many times
and wondering how much people have or use older phoenix gold amp's.

for now iam found olso last at 30 april a secondhand ms275
on a market in holland (only 20 euro) i was thinking not bad price!
later at home i see en open it and need a revision for th powercaps.
cz the where leaking on outlayprint.
so i did replace this caps with simulair new caps last week and
test it together with my homehifi bass enclosure and go playing again! yes i was wondering that such old amp still running after the replacement with new caps.

now i need to know why the internal speakerwiring at mainprintboard
from left&right channels is crossed to conectionblock at frontpanel becoz. print say black is grounding both channels!

i think its like this (minus - is blackwired) & (positive + is redwired)

but if u look to the tekst on frontplate from rightchannel it says
postive. + =blackwired and minus.=redwired.

pls somebody know why this is connected like this?

Posted: Thu May 15, 2008 1:43 pm
by fuzzysnuggleduck
Welcome to the Phorum! Always good to see new members signing up.

I am no amplifier technician, but isn't it wired like that so you can bridge the channels as well as run them independently?

Posted: Thu May 15, 2008 2:01 pm
by Francious70
Welcome to the phorum mang. I'm not sure I completely understand your question. :?

Posted: Thu May 15, 2008 2:16 pm
by AVICJR
I believe the MS amps are all internally bridged or are considered dual mono amps. Someone that has more technical knowledge can better explain.

Posted: Thu May 15, 2008 6:22 pm
by twisted
welcome to the phorum.......yes the ms series amps are wired out of phase internaly for bridging the amps, so your amp is wired correctly internaly :wink:

Posted: Thu May 15, 2008 9:19 pm
by marko
ms275 isn't dual mono, the larger ms2125's are though. i just changed the caps in one of my ms2125's, they were all leaking like mad, when i was de soldering the old caps i could hear the fluid evaporating as i gave it some heat with the iron!!

Posted: Fri May 16, 2008 4:53 am
by Fatii
Hi

ms275 speakerwire conecting internaly

Posted: Wed May 21, 2008 12:09 pm
by jorik
goodday thanks for reply to all members.

about speaker conecting yes its out off phase correctly like twisted says!
and i found untill now no problems white operations when running.

and i will show some pics from caps replacement inside th ms275.

Posted: Wed May 21, 2008 12:15 pm
by stipud
Dag Jorik, welkom thuis ;)

Posted: Wed May 21, 2008 12:16 pm
by jorik
photo 1

Posted: Wed May 21, 2008 12:17 pm
by jorik
photo2

Posted: Wed May 21, 2008 12:20 pm
by jorik
hi stupid bedankt you are ducth?

Posted: Wed May 21, 2008 12:22 pm
by jorik
again photo2

Posted: Wed May 21, 2008 9:45 pm
by marko
the 3 2200uf caps on the left are the ones that a prone to leaking! those rail caps look a little too high :D

Posted: Thu May 22, 2008 9:29 am
by jorik
haha! they caps are fixed with silicon.
and to high no problem i use this amp to powered my homecinima-subwoofer and controls my enclosere bassspeaker very good :wink:

Posted: Thu May 22, 2008 9:37 am
by jorik
leaking! no.

thats mean i replace all caps.
and no problems anymore sofar.