Question about Mackie SWA1501 Subwoofer
I purchased a used Mackie SWA1501 ( 4 years old, purchased 4/09). It tested fine before I purchased and have used several times with no problems. Recently something has happened, volume on the 1501 is much less with the same input level (gain knob on 1501 at 12:00). I must turn up to near full gain on the 1501 to get the same volume I had previously. I have checked input cords, etc. There is not noticeable speaker distortion or hum. I understand this amp has multiple internal fuses- could I have blown one and only be amplifying on half of the amp? I have green on power LED, the signal LED will flicker with input, LED for overload is not lit.
If it is a fuse- can I replace it my self? I am moderately skilled at simple electronic repair.
Macie SWA1501 volume reduction problem posted on July 31,2009- Tried to follow your advice on pulling out the amp and finding the 5V and 12V regulator IC. I pulled out the amp and looke for over an hour and found no component with the number 7805 or 7812 on it. I took it to work, and have our electronic tech look it over with his high power lighted magnifying lens and he couldn't find them. I looked extensively for burned parts- none, bad solder connections- none, and any other sign of damage. The only thing I could find is light whitish corrosion on some of the solder connections- these I cleaded with fiber brush and contact cleaner? Any suggestions would be appreciated. R Marlow
Posted on Aug 06, 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:
Aug 30, 2014 | Universal Remote Control MX-3000 LCD...
Oct 24, 2012 | Mackie Mr8 Active 8" Powered Studio...
Feb 21, 2012 | Music
Jan 01, 2011 | Mackie 402vlz3 Mixer 402vlz3 402vlz3 Vlz...
Jun 18, 2017 | Kenwood Audio Players & Recorders
Jul 03, 2010 | Mackie SRM-450 System
Apr 28, 2010 | Logitech Webcam
Oct 14, 2009 | Digi 002 Rack FireWire-based Pro Tools LE...
Apr 29, 2008 | Frigidaire FRS23H7C Side by Side...
Aug 24, 2007 | Mackie SWA1801 Subwoofer
288 people viewed this question
Usually answered in minutes!