Newbie Discussion - DB Mark XCA28 Hum/Noise on 1 Out

Print Page | Close Window

DB Mark XCA28 Hum/Noise on 1 Out

Printed From: Speakerplans.com
Category: General
Forum Name: Newbie Discussion
Forum Description: Newbie Discussion/Questions. Look less stupid here...
URL: https://forum.speakerplans.com/forum_posts.asp?TID=109002
Printed Date: 26 March 2026 at 7:09pm
Software Version: Web Wiz Forums 12.08 - https://www.webwizforums.com

Topic: DB Mark XCA28 Hum/Noise on 1 Out

Posted By: SnailSpace
Subject: DB Mark XCA28 Hum/Noise on 1 Out
Date Posted: 25 March 2025 at 1:45pm

Hello All,

Been a while! Any way I have a DB Mark XCA28 which has Hum/Noise on 1 Out.

Does anyone know what may cause this?

Is it an easy fix?

It is an older model which I bought 2nd hand a few years ago.

Thanks

Replies:

Posted By: SnailSpace
Date Posted: 27 March 2025 at 8:16am

Sorted!

After running tests and isolating the problem to OUT8 I got in touch with the UK DBMark Dealer ‘Blue Aran’ and they gave me advice to try the Earth Lift button on the back - which worked!

I had troubleshooted & isolated to different amps/cables etc and it was only Out 8 but the Earth Lift Switch did the trick, didn’t even notice it had one, it was tiny and it had to be done by paper clip and never thought it was an earth issue because all the others where fine?

Very grateful to Blue Aran for their time and advice was much appreciated!