Question about Audio Players & Recorders

2 Answers

My Amplifier is humming

My Amplifier humms

Posted by on

2 Answers

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Master
  • 5,807 Answers

My amplifier hums.

If it is really the amplifier that makes a humming noise check on the

power transformer.


But if your referring to humming produced on your speaker then

check on it, not good to turn On for long.


First check for DC offset, use a multimeter.

If there are more than 0.7V on the output, have a tech to repair

your main amplifier.


If it is about 0.7V, then check the preamp circuits and power supply

filtering circuits and regulators.

Posted on Oct 24, 2012

  • Level 1:

    An expert who has achieved level 1.

    Corporal:

    An expert that has over 10 points.

  • Contributor
  • 1 Answer

Make sure all your mic inputs are turned all the way down. I left them up once and It was humming really badly and I had no idea why....

Posted on Aug 07, 2013

2 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
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.
goodluck!

Posted on Jan 02, 2017

  • 6 Answers

SOURCE: amplifier is humming

amplifier is voltage given throuh any high voltage

Posted on Oct 24, 2012

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

I have a frigid air gallery series washer that lights up and just humms,it will not start cycle. I have checked pump and motor isn't ether one of those making humm sound


Good Afternoon Cloy,

I understand that you are getting a humming sound on your Frigidaire washer, and it will not start a cycle. I also see that you've checked the pump as well as the motor, and neither of those is making the humming sound. I suggest contacting your local authorized technician for further assistance. They will be able to diagnose your washer and determine what is causing your appliance to make that humming sound and not run a cycle. Hope this is helpful.

-Best Regards-
WP

May 13, 2014 | Frigidaire Washing Machines

1 Answer

Hi,


The hums are probably the fan kicking in to keep it cool.

Jan 25, 2013 | Audio Players & Recorders

1 Answer

Amplifier is humming


amplifier is voltage given throuh any high voltage

Oct 24, 2012 | Audio Players & Recorders

2 Answers

I get a humming sound when the ipod is attached,


the hum comes from three possible sources, the power unit can cause it before failure, the amplifier which can effect one or more speakers or the interface board between the other two, the interface board and the power board are known problems to b and w, so if you have not already contacted service at b and w, then do so.

May 15, 2010 | B&W Bowers and Wilkins Zeppelin iPod Music...

2 Answers

Loud humm when the drive channel is on


I suspect the power supply has an issue. Most likely bad filter capacitors. This could cause "motorboating" where power is drawn and supply voltage collapses and then recovers repeatedly.

Time for the repair shop. The parts cost should be nominal... labor... well...

Mar 15, 2010 | Fender Hot Rod Deluxe Guitar Combo...

1 Answer

Bad Humm out


First disconnect all inputs. If hum is still there, PROBABLY the filter capacitors have gone bad. Replacement is the cure.

IF there is no hum without any inpout cable connected, there is a ground loop and either the ground at the inout connector is broken, or your cables and guitar may have a problem.

Nov 15, 2009 | Marshall Amplification Marshall MG250DFX...

1 Answer

Sub has started humming with amp turned off. just turned on at wall switch.nothing running


If the hum is from the back of the unit around the amplifier, it may be the transformer. It could be that the mounting is loose.
It could also be that the transformer is going out.

Disconnect all the inputs to the unit, Still hum?

If the hum stops you have something causing noise to the input.

If you have it on a switched circuit, try moving the power plug to a different outlet that is not on a switch. If hum stops, then you have something on that circuit causing the problem

if all inputs are disconnected and it still humms good chance it is the transformer.

Nov 12, 2009 | Velodyne CHT-8 Subwoofer

1 Answer

I have a loud humm in my bose lifestyle 28 system


Turn on your bose so you can hear it hum. Go to the back of your cable box and remove the co ax cable connected to "cable in". If the humming stops, the sheilding on your cable is no longer grounded. Purchase MPAV800 or similar surge protector to run cable line through it and get it grounded.

Feb 02, 2009 | Bose Lifestyle 28 System

1 Answer

Humm


where is the ground wire from the turntable connected to ? Ensure that is is connected to the phono pre-amp's ground.

Is the turntable sitting on top/near any other equipment ? Try changing the position and see if the hum reduces. If yes, then it is likely that it is picking up hum from a mains transformer.

Aug 21, 2008 | Aiwa PX-E860 Turntable

2 Answers

Fan


The hum is power line hum ( 60 cycle ) . It may be that when the amp gets warm that something in the case wants to vibrate to the 60 cycle hum.

I have amps that hum like that and theyre fine.

Depending on the design of the amp, the cooling fan may not go on till it gets really warm in the amp. Some run all the time like the Ashly I just fixed

Dec 03, 2007 | Crown CE2000 2-Channel Amplifier

Not finding what you are looking for?
Audio Players & Recorders Logo

Related Topics:

519 people viewed this question

Ask a Question

Usually answered in minutes!

Top Audio Players & Recorders Experts

kakima

Level 3 Expert

102366 Answers

 Grubhead
Grubhead

Level 3 Expert

5017 Answers

The Knight
The Knight

Level 3 Expert

73635 Answers

Are you an Audio Player and Recorder Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...