Question about Mackie SRM-450 System
This could be a grounding problem, it might change if you plug it in elsewhere or it might be where you live.
Posted on Jan 29, 2009
Repaired the LFamp: fet's and power transistors replaced. Now got the same problem: on power on a huge hum (sawtooth) for 2 seconds, and a crackling noise even with no signal fed and gain at ccw. Other speaker is OK, so no mains problem here.
Posted on Dec 07, 2009
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
Nov 16, 2014 | Mackie ProFX12 USB Mixer
Dec 26, 2013 | Mackie TH-15A Active DJ Powered THUMP...
Jul 11, 2013 | Audio Players & Recorders
Jul 04, 2013 | Mackie SRM-450 System
Sep 27, 2012 | Mackie cfx20 mkII compact mixer
Jun 01, 2011 | Korg D3200 Digital Studio
Nov 30, 2010 | Mackie MR8 150W 8 Active Two-Way Studio...
Oct 17, 2010 | Behringer Xenyx 1002fx Mixer 10 Input 2...
Aug 05, 2010 | Mackie 1604 Vlz3 16 Channel Mixer
522 people viewed this question
Usually answered in minutes!