It is currently Mon Mar 16, 2020 8:15 am

All times are UTC - 7 hours



Post new topic Reply to topic  [ 9 posts ] 
Author Message
Post subject: 60 HZ hum in Mustang IV amp
Posted: Mon Nov 10, 2014 1:46 pm
Offline
Hobbyist
Hobbyist
User avatar

Joined: Mon Nov 10, 2014 1:23 pm
Posts: 5
Location: Eastern Iowa
I have a Mustang IV amp that I bought new last year. I keep getting a 60 Hz hum through it constantly. As soon as I plug my Casino in, or the computer in the Aux jack it hums. I am plugged straight into the wall. It is about to drive me nuts!! Actually its not a drive to get me to nuts, it's more of a gimme putt. :wink: I use the amp in a 12X10 room. TIA for any hints, help, or suggestions to resolve this issue.

_________________
To truly know what a man is, place him in authority.
Molen Labe
Do or don't do, there is no try.
False accusations say more about the accuser than the accused.


Top
Profile
Fender Play Winter Sale 2020
Post subject: Re: 60 HZ hum in Mustang IV amp
Posted: Mon Nov 10, 2014 3:50 pm
Offline
Rock Icon
Rock Icon
User avatar

Joined: Fri Feb 05, 2010 4:31 am
Posts: 14045
Location: Province de Québec, Canada
Did you have hum with not guitar , nothing plug in the amp ?

If not. it could be your guitar bad ground or electrical interference ; cel phone , PC , hallogen or neon lamps ....
Bad ground on house outlet ....

Unplug everything on your home and listen , try on another room or house


Top
Profile
Post subject: Re: 60 HZ hum in Mustang IV amp
Posted: Mon Nov 10, 2014 7:18 pm
Offline
Aspiring Musician
Aspiring Musician
User avatar

Joined: Sun Apr 22, 2012 7:46 pm
Posts: 453
Have you adjusted the noise gate? In Fuse, it is under the advanced amp tab. Some guitarists are not fans of the noise gate, but I have it tweaked in on each and every preset I use. The setting varies from amp model to amp model.

FYI: Try going to the Mustang forum, you will get more and faster responses for your amp there.

_________________
Archtop Bill aka Alder Statesman

Check out my finger-style guitar tracks at www.soundcloud.com/billmcmannis


Top
Profile
Post subject: Re: 60 HZ hum in Mustang IV amp
Posted: Sun Jan 25, 2015 7:08 am
Offline
Hobbyist
Hobbyist
User avatar

Joined: Sat Jan 24, 2015 4:14 pm
Posts: 11
It's possible that the ground wire under your bridge is no longer making good contact.and that you're getting RFI from your computer.
Does the hum become less bad when you move away from the computer?

Also, you may want to plug all the gear involved into the same outlet / powerstrip / surge protector / UPS.

Have you tried different instrument cables.
Bad cables can cause that issue.


Top
Profile
Post subject: Re: 60 HZ hum in Mustang IV amp
Posted: Sun Jan 25, 2015 7:15 am
Offline
Rock Icon
Rock Icon
User avatar

Joined: Fri Feb 05, 2010 4:31 am
Posts: 14045
Location: Province de Québec, Canada
No news since november . He found something and never come to the forum ....


Top
Profile
Post subject: Re: 60 HZ hum in Mustang IV amp
Posted: Sun Jan 25, 2015 3:35 pm
Offline
Hobbyist
Hobbyist
User avatar

Joined: Mon Nov 10, 2014 1:23 pm
Posts: 5
Location: Eastern Iowa
stratele52 wrote:
No news since november . He found something and never come to the forum ....

Sorry for the disappearing act since November. I had been working two jobs, making my week 7 days 14 hours per day, plus two hours transit between home and work per day. As of 15 January 2015, I now have one job, but it is 80 hours per week minimum. But we will be debt free in the near future and will be able to slack of some. Only about four years left of this pace. "The debtor is the slave of the lender" is so true. :( Thank you for the replies, but I still have not been able to eliminate the buzz except through raising the noise gate. In full disclosure I had not had a opportunity try every suggestion here yet. I haven't even had a chance to move the rig out of the room with the computer to if that is the problem.

TheWidower wrote:
It's possible that the ground wire under your bridge is no longer making good contact.and that you're getting RFI from your computer.
Does the hum become less bad when you move away from the computer?

Also, you may want to plug all the gear involved into the same outlet / powerstrip / surge protector / UPS.

Have you tried different instrument cables.
Bad cables can cause that issue.

Widower, are you talking about the wire under the guitar bridge or is there another bridge in the electronics that I am unaware about? Thank you though for the reply.

I am off this afternoon to travel out of state for a week of training/orientation/ assimilation :twisted: for my job. I will try to check in more often, though I will be away this week. Thank you to every who replied in an effort to help this newbie out. :D

_________________
To truly know what a man is, place him in authority.
Molen Labe
Do or don't do, there is no try.
False accusations say more about the accuser than the accused.


Top
Profile
Post subject: Re: 60 HZ hum in Mustang IV amp
Posted: Sun Jan 25, 2015 4:08 pm
Offline
Hobbyist
Hobbyist
User avatar

Joined: Sat Jan 24, 2015 4:14 pm
Posts: 11
Stormtruck2 wrote:
Widower, are you talking about the wire under the guitar bridge or is there another bridge in the electronics that I am unaware about?

Yes, the guitar's bridge.
There's a wire (usually yellow) that goes from the control cavity to a hole
under the bridge.

Over time, the wire embeds in the wood and
in some cases, it causes the wire to lose good contact with the bridge.
The bridge is where everything on the guitar grounds to.
Unless you had a guitar with active pickups, then the ground is the battery.

You really should check it out with a few different guitar cords also.

And yes, moving it away from the computer would definitely make a difference.

Cheers!


Top
Profile
Post subject: Re: 60 HZ hum in Mustang IV amp
Posted: Thu Jun 23, 2016 6:48 am
Offline
Hobbyist
Hobbyist

Joined: Thu Aug 23, 2012 6:49 am
Posts: 3
Your problem could be a ground loop problem. That's when there is more than one ground in your rig.

https://www.audioholics.com/home-theate ... m-and-buzz


Top
Profile
Post subject: Re: 60 HZ hum in Mustang IV amp
Posted: Thu Jun 23, 2016 5:27 pm
Offline
Rock Star
Rock Star

Joined: Wed Apr 11, 2012 7:37 am
Posts: 4099
Location: New York
1. Make sure you have no pedals plugged into the amp

2. If possible, try a different guitar

3. As previously stated, use a different wire

4. Try a different room or if possible, a different house. See if the hum follows.

5. If you find it's a problem with your house wiring and it's not something you can fix, use a good high quality UPS. It will isolate you from the house electric circuit. On the down side, they are expensive and heavy.

_________________
Please subscribe to my Image Channel!
https://www.youtube.com/user/b7567


Top
Profile
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 9 posts ] 

All times are UTC - 7 hours

Fender Play Winter Sale 2020

Who is online

Users browsing this forum: No registered users and 1 guest


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum

Search for:
Jump to: