ms2125 and Mq430 caps

Post by **kg1961** » Wed Apr 23, 2008 6:20 am

I want to change my caps on my Frank amp in Stein before it gets installed in my car
does anyone have a shopping list
I like to know what stock is but what I can add as caps are better now!
thanks again

Post by **kg1961** » Sat Apr 26, 2008 8:37 am

any one with info,were to buy, who to email or talk to

nico boom · Post by **nico boom** » Sun Apr 27, 2008 10:22 am

I do cap change on MS-series amps regularly.
As long as I am doing this job, I always replaced the 12 input filtering caps for 16 volts- 6800uf -105 degr.
ones. [3x in the MQ430]
The railcaps are best ordered at PG; the size of 35x35 mm. is very hard to find.
There used to be 4x 10.000uf -40, later 50volts in there, nowadays there are 8600uf, 85 degr. used. [2X 6800UF -50 volts to replace the ones in the MQ430].
Hope you know how to handle a soldering-iron, as this job is hard to do, when you never tried it before.
De-soldering the caps is the hardest part, along with getting the fets off the heatsink; they tend to stick very strong.
Also replace the silpads on all output devices.
You can PM me if you have more questions.
Nico

Post by **kg1961** » Mon Apr 28, 2008 10:02 am

great info thanks again
do you have numbers for the m series m44 and m25?

marko · Post by **marko** » Mon Apr 28, 2008 10:25 am

where do you guys get silpads from?

nico boom · Post by **nico boom** » Mon Apr 28, 2008 11:18 am

No specs for the M-series, but the basics are the same.
Just replace the old ones with the biggest capacitance you get get in there.

I buy silpads local, they are grey; the original colour is also available, but cost 12 times as much.

dwnrodeo · Post by **dwnrodeo** » Mon Apr 28, 2008 11:25 am

http://www.soundbuggy.com/Eric/Car%20Au ... index.html

This is the tutorial Eric aka Dr. Fosgate wrote for cap replacement. He has a link in there on which caps to use.
I replaced the caps in my M44 with these and haven't had any problems.