Speakerplans.com Homepage
Forum Home Forum Home > General > Amp Forum
  New Posts New Posts RSS Feed - RMX2450 Knobs
  FAQ FAQ  Forum Search   Events   Register Register  Login Login

RMX2450 Knobs

 Post Reply Post Reply
Author
Message
SamV View Drop Down
Old Croc
Old Croc


Joined: 21 October 2008
Location: London
Status: Offline
Points: 8707
Post Options Post Options   Thanks (0) Thanks(0)   Quote SamV Quote  Post ReplyReply Direct Link To This Post Topic: RMX2450 Knobs
    Posted: 11 March 2012 at 3:43pm
Hey all,

I wanna give my amps a squirt of switch cleaner, how do the volume knobs on the QSC come off? Do they just pull off? I tried giving them a bit of a tugged but they don't seem to move and neither I nor Lev wanted to force them.

Cheers,
Sam
Back to Top
taurusty View Drop Down
Registered User
Registered User
Avatar

Joined: 09 January 2007
Location: Jamaica
Status: Offline
Points: 473
Post Options Post Options   Thanks (0) Thanks(0)   Quote taurusty Quote  Post ReplyReply Direct Link To This Post Posted: 11 March 2012 at 4:13pm
They pull off, if I recollect correctly. Better  you pull down the amp & remove the module in it"s entirety & clean properly. Think switch cleaner mite damage the tracks
Back to Top
duck1 View Drop Down
Registered User
Registered User


Joined: 22 February 2008
Status: Offline
Points: 173
Post Options Post Options   Thanks (0) Thanks(0)   Quote duck1 Quote  Post ReplyReply Direct Link To This Post Posted: 11 March 2012 at 4:14pm
I cleaned the pots on pair of these a couple of years back. IIRC, the knobs just slide off. I ended up taking the whole pot apart to clean it though...
Back to Top
kedwardsleisure View Drop Down
Old Croc
Old Croc


Joined: 20 January 2009
Location: Staffordshire
Status: Offline
Points: 4938
Post Options Post Options   Thanks (0) Thanks(0)   Quote kedwardsleisure Quote  Post ReplyReply Direct Link To This Post Posted: 11 March 2012 at 9:09pm
Yes, pull off knobs. .
Kevin

North Staffordshire

Back to Top
ceharden View Drop Down
The 10,000 Points Club
The 10,000 Points Club
Avatar

Joined: 05 June 2005
Location: Southampton
Status: Offline
Points: 11776
Post Options Post Options   Thanks (0) Thanks(0)   Quote ceharden Quote  Post ReplyReply Direct Link To This Post Posted: 11 March 2012 at 9:32pm
The only way to successfully clean the pots on those amps is to remove them from the board, bend the little tabs that hold them together, dismantle and then clean with a cotton bud soaked in switch cleaner.  At which point it is probably easier just to fit a new set.  Unfortunately just squirting some switch cleaner into them doesn't really help with the root cause of the problem.

I recently dismantled some to try and find out why they failed so quickly on these amps.  The answer appears to be that it's not the carbon track that gets dirty but the conductive track which joins the wiper back to the centre contact oxidising up.  Looks like silver plating that's getting tarnished.
Back to Top
kedwardsleisure View Drop Down
Old Croc
Old Croc


Joined: 20 January 2009
Location: Staffordshire
Status: Offline
Points: 4938
Post Options Post Options   Thanks (0) Thanks(0)   Quote kedwardsleisure Quote  Post ReplyReply Direct Link To This Post Posted: 11 March 2012 at 9:39pm
Made by Taiwan Alpha. Cheap pots in an otherwise good amp.
I fit a superior type when they go.
Kevin

North Staffordshire

Back to Top
SamV View Drop Down
Old Croc
Old Croc


Joined: 21 October 2008
Location: London
Status: Offline
Points: 8707
Post Options Post Options   Thanks (0) Thanks(0)   Quote SamV Quote  Post ReplyReply Direct Link To This Post Posted: 12 March 2012 at 1:58am
Which one do you recommend?
Back to Top
 Post Reply Post Reply

Forum Jump Forum Permissions View Drop Down

Forum Software by Web Wiz Forums® version 12.06
Copyright ©2001-2023 Web Wiz Ltd.

This page was generated in 0.078 seconds.