hello and goodday iam new forum member

jorik · Post by **jorik** » Thu May 15, 2008 12:28 pm

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?

Post by **fuzzysnuggleduck** » Thu May 15, 2008 1:43 pm

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?

Post by **Francious70** » Thu May 15, 2008 2:01 pm

Welcome to the phorum mang. I'm not sure I completely understand your question.

Post by **AVICJR** » Thu May 15, 2008 2:16 pm

I believe the MS amps are all internally bridged or are considered dual mono amps. Someone that has more technical knowledge can better explain.

twisted · Post by **twisted** » Thu May 15, 2008 6:22 pm

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

marko · Post by **marko** » Thu May 15, 2008 9:19 pm

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!!

Fatii · Post by **Fatii** » Fri May 16, 2008 4:53 am

jorik · Post by **jorik** » Wed May 21, 2008 12:09 pm

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.

Post by **stipud** » Wed May 21, 2008 12:15 pm

Dag Jorik, welkom thuis

jorik · Post by **jorik** » Wed May 21, 2008 12:16 pm

photo 1

jorik · Post by **jorik** » Wed May 21, 2008 12:17 pm

photo2

jorik · Post by **jorik** » Wed May 21, 2008 12:20 pm

hi stupid bedankt you are ducth?

jorik · Post by **jorik** » Wed May 21, 2008 12:22 pm

again photo2

marko · Post by **marko** » Wed May 21, 2008 9:45 pm

the 3 2200uf caps on the left are the ones that a prone to leaking! those rail caps look a little too high

jorik · Post by **jorik** » Thu May 22, 2008 9:29 am

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

jorik · Post by **jorik** » Thu May 22, 2008 9:37 am

leaking! no.

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

hello and goodday iam new forum member

hello and goodday iam new forum member

ms275 speakerwire conecting internaly