Behringer ep1500 Crackling - diyAudio
Go Back   Home > Forums > Live Sound > Instruments and Amps
Home Forums Rules Articles diyAudio Store Gallery Wiki Blogs Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Instruments and Amps Everything that makes music, Especially including instrument amps.

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Thread Tools Search this Thread
Old 2nd July 2013, 05:08 PM   #1
diyAudio Member
Join Date: Jul 2013
Default Behringer ep1500 Crackling

I've been browsing around a bit trying to determine what might be wrong with my Behringer ep1500, (QSC RMX1450 clone)

I use one for live performance FOH in small bars to drive a pair of Behringer B1520 pro speakers. I usually run them with the gain set to 32.

For several years this worked flawlessly. Then a couple months ago I was asked to run sound for a metal band and the guitars were very loud, and this system could barely keep up just running audio for the vocals. I set the gain to max to get through the show.

The clipping light pulsed frequently, and at the end of the show, the amp was very warm.

Since then it has developed a crackling noise distortion on channel 1, and I have to turn the gain down on that channel to lessen this

Also during that show from hell, one of my speakers were damaged, and I had to replace the horn. I didn't notice the horn was out till a couple weeks later but I think these problems are related.

I used to be an electronics tech years ago but have been out of it a while and have obtained a schematic of the QSC RMX1450. I want to open it up and have a look around to find any obvious damage.

Any hints or suggestions what to check for would be GREATLY appreciated
Thanks in advance
  Reply With Quote
Old 2nd July 2013, 05:43 PM   #2
diyAudio Member
meanman1964's Avatar
Join Date: Oct 2006
Location: Belgium the land of chocolate
Here you have the EP1500 schematic
Attached Files
File Type: zip (389.8 KB, 43 views)
  Reply With Quote
Old 2nd July 2013, 05:50 PM   #3
diyAudio Member
Join Date: Jul 2013
Thanks for sharing that link
  Reply With Quote


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Behringer ep1500/2500 postman Instruments and Amps 17 16th December 2014 02:00 AM
Behringer Europower EP1500 sterjess Instruments and Amps 1 27th March 2010 08:41 AM
Behringer EP1500 FOXYE Instruments and Amps 6 26th September 2009 09:09 PM
Behringer ep1500 and cx2310 Beau Swap Meet 1 28th April 2009 10:59 AM
Behringer EP1500 gcohen Instruments and Amps 5 16th December 2006 08:40 AM

New To Site? Need Help?

All times are GMT. The time now is 03:06 PM.

vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright 1999-2017 diyAudio

Content Relevant URLs by vBSEO 3.3.2