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possible qsc rmx amp problem
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APW View Drop Down
Young Croc
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    Posted: 19 July 2022 at 8:49am

select the exact model from the dropdowns and it'll give you the part number.
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Originally posted by APW APW wrote:

The correct pot for the plx2 range is a 4 pin pcb mounted 5k pot, QSC part number PT-250002-00


How about QSC RMX? 

Thank you
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Delete please

Edited by mitchiemasha - 19 July 2022 at 12:32am
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Young Croc
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Points: 1174 		Post Options Post Options   Thanks (1) Thanks(1)   Quote APW Quote  Post ReplyReply Direct Link To This Post Posted: 18 July 2022 at 4:13pm

The correct pot for the plx2 range is a 4 pin pcb mounted 5k pot, QSC part number PT-250002-00

 

…. For older models it’s a 10k pot part number PT-310000-CR



Edited by APW - 18 July 2022 at 4:19pm
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Young Croc
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https://cpc.farnell.com/w/c/electronic-electrical-components/resistors/potentiometers-trimmers-accessories/rotary-potentiometers?product-range=p160

you just need to choose the right value and taper
www.guildfordcablecompany.co.uk
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Old Croc
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Points: 7216 		Post Options Post Options   Thanks (1) Thanks(1)   Quote Earplug Quote  Post ReplyReply Direct Link To This Post Posted: 18 July 2022 at 12:49pm
Originally posted by mitchiemasha mitchiemasha wrote:

Where can we get the right pots at a good price? Upgraded quality for QSC. Who and what do people recommend?s

Thank you


What size & value are they? I have some very nice "vintage" pots here surplus from a Soundtracs desk refurbishment!   LOL LOL LOL

Otherwise - I wouldn't worry too much about it. 99% of the pots on the market now come from Shenzhen!  Embarrassed
Earplugs Are For Wimps!
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Where can we get the right pots at a good price? Upgraded quality for QSC. Who and what do people recommend?

Thank you
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Old Croc
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Points: 4949 		Post Options Post Options   Thanks (1) Thanks(1)   Quote kedwardsleisure Quote  Post ReplyReply Direct Link To This Post Posted: 24 April 2022 at 6:52pm
just stick new pots in and away you go. You can buy them anywhere.
Kevin

North Staffordshire
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that's really interesting !
best place on the internet >>>

https://dissidentsound.discoursehosting.net
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Young Croc
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If you short the wiper to the input leg then the pot still acts like a soft mute switch if you wind it all the way off

Conductive plastic pots don’t suffer this age related fate (unless they literally get worn out from use) as the issue is the carbon tracks of the pots corroding, I always replace carbon track for conductive plastic whenever I’m repairing kit, guitars, etc.


Edited by RoadRunnersDust - 24 April 2022 at 12:01pm
www.guildfordcablecompany.co.uk
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Points: 83 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Line Array Quote  Post ReplyReply Direct Link To This Post Posted: 23 April 2022 at 7:23pm
my PLX pots are not doing too well ...

could you put in an on/off switch in place of them rather than shorting ?

to act as a mute button ?

or would the transient be too loud ?

also do all pots suffer this fate or not ?

the pot on my Benchmark DAC ( a home / studio product ) is only faring slightly better than the QSC one - they're both about 15 years old ... Benchmark is considered very high quality yet still has this problem

i wonder if there are some known ways to adjust volume that aren't so problematic.  i don't mean to revive my PLX but for future purchases.

for example if you control the volume digitally - will you lose bits of resolution ?  or is it irrelevant with 24 bits having more resolution than amp has noise floor ?


Edited by Line Array - 23 April 2022 at 7:26pm
best place on the internet >>>

https://dissidentsound.discoursehosting.net
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Points: 48 		Post Options Post Options   Thanks (0) Thanks(0)   Quote zigzagwanderer Quote  Post ReplyReply Direct Link To This Post Posted: 23 April 2022 at 2:35pm
Originally posted by simonp1100 simonp1100 wrote:

Originally posted by zigzagwanderer zigzagwanderer wrote:

ok , further to my previous post 
I botched the faulty cable to check it worked ok and I now need a replacement cable 
I think I need a 6 pin female to female JST cable approx 100mm long , the pins are 2.5mm centres.
I've looked everywhere I can think of and can't find a suitable cable available in the UK anywhere 
If possible I'd prefer not to have to make it up and have to buy a crimping tool etc  
Anyone know where I can source one , the proper QSC one would be nice but I'm not overly fussed as long as its ok quality  

Found this within 5 minute search:


WinkWinkLOL

Now why couldn't I find that Confused
Thank you 
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