Question about Audio Players & Recorders

1 Answer

Amplifier is humming

My amplifier humms

Posted by on

Ad

1 Answer

  • Level 1:

    An expert who has achieved level 1.

    Corporal:

    An expert that hasĀ over 10 points.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 6 Answers

Amplifier is voltage given throuh any high voltage

Posted on Oct 24, 2012

Ad

1 Suggested Answer

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

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Hi,


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

Jan 25, 2013 | Audio Players & Recorders

2 Answers

My Amplifier is humming


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.

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

Subwoofer hum -MTX12" connected to a Aiwa Surround sound. No problems first 10 months, then suddenly all the subwoofer will do is humm loudly and not play music. Changed cables, no change, changed where it...


I assume this is an active sub. The amplifier has most likely failed. You have proved the signal source is not the problem, well almost if you can sucessfully connect the aiwa sub to another amp then we will know for sure. Usually amplifiers fail with an output device short circuit. The hum you here is the power supply direct on the speaker, I would not leave it on for long or speaker damage may ensue.

Sep 21, 2009 | MTX 12" 2-Way Professional Loudspeaker...

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:

29 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

5190 Answers

The Knight
The Knight

Level 3 Expert

74496 Answers

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

Answer questions

Manuals & User Guides

Loading...