Question about RCA RS2046 Shelf System

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Rs2046 humming noticable at low volume, radio cd and inputs

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Hook he speaker wires up correctly...
make sure there are not any cus in the wire or any opposite wires are touching.

Posted on Jul 17, 2008

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I have a pair of JM lab Electra 905 speakers, running through a DNM amp and power amps. When powered up, the left speaker makes a very loud humming noise. This has happened recently. I haven't changed...


Hello
Switch on your amp, keep its volue down to extreme low, and listen if there is still hum through the left channel or not. If still there is hum, the left side power amplifier section inside the amp;ifier is faulty. If htere is no hum at this state, hum enters thorugh the audio input terminal, and the input wires must be checked for open sheild connection. OK.

Apr 10, 2011 | Jmlab Electra 905 Speaker

1 Answer

I dont have sound on my laptop


A general case might be to take the stereo headphone output of the laptop and feed it a set of left and right line level (not microphone level) inputs to the soundboard. Radio Shack sells a cable that has a typical mini stereo headphone plug on one end and a pair of RCA Phono plugs on the other end. If the soundboard does not have phono jack inputs you will need some type of adapter plug on the ends of the cable phono plugs to match the soundboard's connector.

You then experiment with the laptop's volume control setting (start low) and the soundboard's input level control to get undistorted sound with minimum noise and hum. If you can not get rid of the hum, you probably need to add a ground loop isolation box (also available from Radio Shack, I believe) to reduce or eliminate the hum. __________________

Sep 20, 2010 | IBM (01K2154) Sound Card

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I have Insignia ns-p42q-10a tv, there is a loud hum when the volume is on when you mute the volume it goes away? Any suggestions?


check other inputs AVI, HDMI,,

do you here the hum on all inputs?

The hum maybe from a bad ground loop,, unplug all pluged in inputs, [dvd,games,radio,ect] <--check for hum.

If the hum is gone, plug inputs back in one at a time and test,,

When you find the source of the hum, go get a ground loop isolator to fix.

Mar 25, 2010 | Insignia NS-P42Q10A Plasma TV

2 Answers

There is a loud hum when volume is on low to high


go to control panel
sound and audio devices
voice
under voice recording clk volume and mute the mic phone...........
or
some how your mic is conflicting with speakers. Keep your mic away from your speakers..

Do reply if this woks

Oct 03, 2009 | Bose Companion II Computer Speakers

1 Answer

Peavey 115 Low hum Low volume from input


The preamp section has a problem. It could be anything in the preamp but is OFTEN the input jack itself. They take a lot of abuse.

Also the insert jack contacts that forward the preamp to the power amp if no external FX are used can go bad.

Additional things are circuit board cracks caused by rough handling and also controls that have had the knobs mashed in which can destroy the potentiometers they are connected to.

Sep 19, 2009 | Peavey Music

1 Answer

Mains hum on Ferguson R121 DAB radio


wrap aluminum foil around the power cord

Jul 19, 2009 | Audio Players & Recorders

1 Answer

Aux in runs only back speakers and no volume control


check sub setting some radios can select between non fading sub output or aux input

May 08, 2009 | Pioneer DEH-P3000 CD Player

1 Answer

Volume is low on my turntable


You have to amplify the output from your turntable output to the input of your amplifier. To do this you can buy what is known as a pre-amp. Radio shack probably still sells them.
Be sure to ground your turntable to your amplifier and not the pre-amp. This should stop any hum or at least diminish it. Bear in mind that your records will not sound as loud as your CD's. Hope this helps.

Feb 10, 2009 | Numark TT1520 Turntable

2 Answers

Humming noise in Harmon Kardon AVR 110


on what cd dvd ? cheak cable 1st rca swap out

Jan 29, 2008 | Audio Players & Recorders

1 Answer

Music sometimes stops when using USB input


u most likely have files that aren't compatible with the player.

Nov 20, 2007 | RCA RS2046 Shelf System

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