Home » VintageKustom.com » Repairing Kustom Amps » Custom Quad 65DFX (Amp whistles after a few minutes use.)
Custom Quad 65DFX [message #27850] Mon, 24 August 2020 17:17 Go to next message
LozzHipkiss is currently offline  LozzHipkiss
Messages: 2
Registered: August 2020
Junior Member
Hi, My Quad 65DFX has suddenly started whistling after a few minutes of use. The noise isn't linked to any control (or at least it seems that way). I can't understand whats caused it I've not abused it, overloaded it etc....maybe a component has just had enough. Ive seen similar threads on here but have not been able to find a solution. Any help would be much appreciated...Thanks.
Re: Custom Quad 65DFX [message #27852 is a reply to message #27850] Tue, 25 August 2020 05:39 Go to previous messageGo to next message
stevem is currently offline  stevem
Messages: 4299
Registered: June 2004
Location: NY
Senior Member
If you have no serious electronic repair capability then taking your amp with its kind of issue to a good repair tech will be the only way of fixing it.

I myself who works on all types of audio electronics all work day long be they tube or SS have never worked on this model , nor any of the Kustom from around this era this line of Kustoms where made as they seem to hold up pretty well.
That all being said like 98 % of gear out there today it was made for a certain price point, not to a quality level!

If i had to take a guess on your amps issue it would be that it has a electrolytic type cap going bad in one of its circuits.

[Updated on: Tue, 25 August 2020 05:43]

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Re: Custom Quad 65DFX [message #27853 is a reply to message #27852] Tue, 25 August 2020 07:23 Go to previous messageGo to next message
LozzHipkiss is currently offline  LozzHipkiss
Messages: 2
Registered: August 2020
Junior Member
Thanks for the response. Though I've dabbled over the years I'm certainly no technician and would never attempt such a repair myself. I have seen similar faults mentioned on old posts so I was kind of hoping for response from someone that had cured similar problems. Finding a Custom Tech in Birmingham UK is not easy, I bought the amp second hand I have not serious investment in it but its just something I would have had fixed if I could. Thanks again for your help.
Re: Custom Quad 65DFX [message #27854 is a reply to message #27850] Tue, 25 August 2020 12:18 Go to previous message
stevem is currently offline  stevem
Messages: 4299
Registered: June 2004
Location: NY
Senior Member
You should not need to find a dedicated Kustom tech , just a tech who is capable in SS repairs which many so called tech's that do tube stuff are not!
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