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QSC RMX5050 pots

Printed From: Speakerplans.com
Category: General
Forum Name: Amp Forum
Forum Description: The 'Stopping Jake Fielder moaning constantly' forum description...
URL: https://forum.speakerplans.com/forum_posts.asp?TID=91150
Printed Date: 16 April 2024 at 1:28pm
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Topic: QSC RMX5050 pots
Posted By: dylan-penguinmedia
Subject: QSC RMX5050 pots
Date Posted: 15 March 2015 at 10:44am
Does anyone have a link to a suitable pot at RS or similar?



Replies:
Posted By: Jimmer
Date Posted: 15 March 2015 at 10:57am
I hate RMX pots! utter garbage. Sorry no help, just thought id air my opinions on them LOL

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Light travels faster than sound....That's why some people appear bright until you hear them speak!


Posted By: MattStolton
Date Posted: 15 March 2015 at 11:30am
Given how they fail so readily (oxidise IIRC!), Shure Dist. have always got them in stock. I think I have a pile of them on my desk at work too.

I won't be in the office till Wednesday, and I think they are 2450, but should be same part. PM if still in need.


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Matt Stolton - Technical Director (!!!) - http://www.wildingsound.co.uk" rel="nofollow - Wilding Sound Ltd
"Sparkius metiretur vestra" - "Meter Your Mains"


Posted By: rigsmith_electronics
Date Posted: 15 March 2015 at 12:18pm
My pal droped off 7 or more QSC amps and bags of pots to my workshop last year. 

I cannot remember the exact amp. but there was different values for the same amps depending which version of the PCB it has. 

He said he got them from QSC and from memory I dont think he was ripped off. Why not call them, I think they are expecting people too do so. 


Posted By: TRE4U2NV
Date Posted: 15 March 2015 at 1:57pm
pots on rmx are different across the range iirc or they dont line up with knobs one of the twoConfused

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IM SO SECRETIVE BUT I CANT TELL YOU WHY


Posted By: ceharden
Date Posted: 15 March 2015 at 2:52pm
Remove from the amp.  Dismantle the pot, clean the centre silver conductive track with a bit of switch cleaner on a cotton bud, reassemble and replace, good as new!

It is somewhat annoying that it's actually the centre common contact that oxidises up, not the resistive carbon track.

The 2U amps use one type of pot, the 3U amps use another. You can interchange them but the knobs won't line up with the markings on the front panel.


Posted By: dylan-penguinmedia
Date Posted: 15 March 2015 at 3:16pm
Thanks guys - have dropped Shure an email - didn't think it'd be something they'd be interested in supplying direct in small quantities, hence the thread. Will see what they say!

(they are a PITA though, those pots!)


Posted By: TRE4U2NV
Date Posted: 16 March 2015 at 1:05am
Originally posted by ceharden ceharden wrote:

Remove from the amp.  Dismantle the pot, clean the centre silver conductive track with a bit of switch cleaner on a cotton bud, reassemble and replace, good as new!

It is somewhat annoying that it's actually the centre common contact that oxidises up, not the resistive carbon track.

The 2U amps use one type of pot, the 3U amps use another. You can interchange them but the knobs won't line up with the markings on the front panel.


yeah thats it Clap long time since ive opened one up i knew it was something along those lines


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IM SO SECRETIVE BUT I CANT TELL YOU WHY


Posted By: Badger74
Date Posted: 16 March 2015 at 11:47am
Give shure a ring, always helpful.

 I need some for my 850...you've just reminded me ;)


Posted By: dylan-penguinmedia
Date Posted: 16 March 2015 at 1:02pm
Got some winging their way to me already!


Posted By: MattStolton
Date Posted: 18 March 2015 at 10:16am
Pics of the offending items.

There are both B10K and B2.5K, from memeory for a mix of RMX850 and RMX1450. Seems to inply 2450, 4050 and 5050 may also have different parts.

Shure Dist would be best bet?




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Matt Stolton - Technical Director (!!!) - http://www.wildingsound.co.uk" rel="nofollow - Wilding Sound Ltd
"Sparkius metiretur vestra" - "Meter Your Mains"


Posted By: ceharden
Date Posted: 18 March 2015 at 1:22pm
I have no idea why they have two different resistance versions, I really doubt given where they're used that it makes any difference!


Posted By: kedwardsleisure
Date Posted: 18 March 2015 at 2:26pm
Perhaps when Gold Peak made the amps they bought a load of the wrong sort and just thought 'stick em in'

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Kevin

North Staffordshire



Posted By: djsam3000
Date Posted: 18 March 2015 at 4:13pm
Speak to Timo in service at Shure Dist, he is very helpful. Depending on the serial number it could be one of two different types if i remember correctly. They will supply you with just a pair if you need it.


Posted By: Badger74
Date Posted: 18 March 2015 at 4:37pm
I just replaced mine in a 4050 ( 2nd time around ) and this time they actually do sit correctly.

The previous ones where 180 degrees out!




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