Question about Paradigm PDR 12 Speaker

1 Answer

Hum coming out of Front left/right speakers but not center

I  have an onkyo 606 amp. when i am watching a movie/tv there is a hum coming out of the speakers and i have no idea how i can stop that.  It is worse in other sound modes. How can i fix that?  Also I just got the paradigm pdr 12 and plugged it in the amp turned on and there was a high pitch screamming  noise that would not stop.

Posted by on

1 Answer

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

There is a chance that your wiring is producing this problem. Manufacturers don't always make equipment that is compatible with each other. The biggest problem's are "ground loops". Radio Shack has a non-electrical device that separates the common ground from all equipment. You basically connect it between your amp out's and in's - cables included. It is possible that other manufactures also make and sell this device too. It's main "Google" name would most likely be - "Ground Loop Isolators". If you are using the actually speaker outputs into your subwoofer amp input(s), check your polarity wiring again. Good luck with your system - it sounds like it'll rock when it's all setup correctly.

Posted on Mar 26, 2009

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 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 have an Onkyo TX SR 700 receiver, Bose Acoustic Mass 10 speakers, Panasonic Viera 52" flat screen with my computer connected to the receiver. The computer uses a high end sound card. The flat screen...


Hi, what causes hums from speaker is when there is no ground shield from either the power supply or from the cable you plugged into the socket from the power supply.

So you will need to check that out and replace untrusted cables for connection..

If after doing this troubleshooting exercise, you will now need to test the speaker with another set to be sure the humming sound is not coming from there.

I guess that will Do.

Have a nice day...

Feb 18, 2011 | Bose Acoustimass 10 Series IV Home...

1 Answer

I have a Onkyo TX-8222 receiver. Sound is ok for music but voices are very low. When two voices, one is very clear abd the other very low. What is the problem ?


You don't say what source(s) are affected. I'm guessing TV or Cable-TV is the problem because music with vocals has voices and you say it sounds ok. Your speakers have no clue whether a sound is a voice or music so that lets THEM out and your receiver doesn't know or care either.

In the modern multichannel world it's usually assumed your electronics are multichannel. This receiver is old-school stereo.

The Center channel is usually where voices are found but some systems (like yours) don't have a Center speaker so they have to be configured to share the Center duty with the front left and Right speakers.This isn't possible or even normally necessary in your case. WYSIWYG

http://www.retrevo.com/support/Onkyo-TX-8222-Receivers-manual/id/469ci869/t/2/

The audio coming in from 'wherever' should be correctly mixed to 2-channels at the source or you'll probably be missing something. I'd look higher up the audio food chain for where the voices are being attentuated. If a cable box is involved I'd look at its audio settings regarding stereo mix-down

Wait, I just had an inspiring thought. Centered voices being mono in nature would partially cancel out if your two speakers were out of 'phase' with each other. Bass would also suffer. Make sure your two speakers are wired identically regarding the red and black (or plus and minus) conductors. If turning the Balance control fully to one side makes bass of voices sound louder you probably have a phase mismatch. Reverse the wiring on either speaker to match the other. There is no absolute right or wrong for phasing as long as they're all the same.

Dec 31, 2010 | Onkyo GX-D90 Main / Stereo Speaker

1 Answer

Left speaker has developed a hum. Checked connections and all seems well. Sounds raspy like the speaker has blown.


This is likely due to a problem with the amplifier. You may have turned up the amp to the point of overdriving the speaker. The distortion at these high levels cause clipping and turn what was once crisp, clear sound into a muddied, garbled mess.

If the speaker is left connected to that source long enough, damage to the speaker and the amp may occur.

Without changing positions of the speakers: You can disconnect the affect Front or Rear L & R speakers and swap them (connect the L speaker to the R output of the amp and vice-versa). If the buzzing / hum "moves" to the other speaker, then the amplifier has the problem. If the buzzing / hum stays with the same speaker, the speaker has issues and is likely "blown".

Either way, it is probably not going to be a "cheap fix"

Good luck!

Jun 24, 2010 | Boston Acoustics VRS Micro Speaker

1 Answer

I recently connected my satellite reciever to my


Iassume you mean you hear the buzz independently of the audio program - simply connecting the cable causes the buzz?

If tanything in the mix is powered from different AC sources you may have a different ground potential. Sometimes manipulating the orientation of one or more ac plugs will solve hum problems.

Apr 02, 2010 | M&K Sound Mp Series MX-350 MK II THX...

2 Answers

Bought a used Martin Logan Dynamo subwoofer a couple days ago and have a very loud hum when the ac cord is plugged in, even if the speaker is not connected to an audio source. The "hum" can be heard in any...


Neither the amp or the sub have grounded power cords.

I have discovered the ML Dynamo takes about 30 minutes to switch to standby in auto mode.

With speaker level inputs connected to the Onkyo A807 amp, both units powered from the same wall outlet, Dynamo sub on Auto, the sub hums for about half an hour after the Onkyo is switched off, then the sub goes quiet. Not so good.

I connected a bonding wire between the two units on 3_7_09. If I smoked some old audio gear I could just look at that as an opportunity, right?

Works fine. Now I have the ML powered from the wall and working normally.

Jun 30, 2009 | Dynamo MartinLogan Subwoofer Speaker

1 Answer

Speakers work only on DVD


You might have connected your TV/Stereo Receiver up to the wrong audio outputs of the DVD player. Make sure you are coming out of the FRONT left/right audio outputs and not the CENTER?REAR left/right audio outputs. 

Mar 13, 2009 | Panasonic SB-TP55 System

1 Answer

Humming Sound


1. Check the cable of speaker which gives out the hum/cracking sound.Interchange the cables with the one that is working okay and find out if the hum still persists on the relevant Speaker. If the hum has gone, then replace cables ( to be on the safe side replace both right and left channel) to the speaker.If the Hum still persists, check the input female plug of the defective speaker and check if it is not lose or the solder has not gone wet. If so resolder both the wires of the connector by removing it with a soldering iron and scrapping the points of solder with a blade. If the problem still persists. Open both the cabinets. Mark the defective driver with a marker pen. Remove the non problemative driver and replace in it's place the Humming driver and check the configuration on both channels. If there is is problem then it has to do with driver and has to be recoiled and reconed ( ofcourse with a little quality lost) which could be done by any Speaker repair shop as per the manufacturers specifications. If the speaker works fine then the problem has to be either of the crossover network or tweeter. So remove the cross-over network from the defective speaker setup after marking it again for identification, and replace it in the good working speaker, where you now connected the humming speaker. If there is a hum, then the problem is the cross-over network, which should be replaced. If the hum is not there, again try similarly with the tweeter and I am sure you will get the Hum, and you may get a new one of similar specification from the market or get it repaired by a speaker shop. Replace the original configurations as was before. Woofer to its original places and similarly cross-over and tweeter ( as was before you opened the cabinets). Now you have identified the problem, solve the problem by repairing or replacing the culprit device. I am sure you may not have to go to all these. Perhaps it might be a loose connection or cable problem or even earthing problem. If you do not want to go through all these. Show it to a specialist with reputation ot take it to the company's service centres whose address in your area or nearby area you could get from their official site. Please note I have given my guidance on the premise that the amplifier if fine and has no problem.

Aug 14, 2007 | Tannoy Mercury MX4-M Main / Stereo Speaker

1 Answer

Loud Humming...


hum usually comes from the power side, not necessarily the inputs. try physically moving your amp to another room in the house, or even to a friends house, see if the hum goes away. if it does, get an outlet tester ($15) from home depot and test the outlet, hot and neutral may be reversed. talk to someone who knows home electricity if you are not sure what to do in an outlet. if this does not work, try plugging the amplifier into a decent power bar (apc or such) usually used for computers. this sometimes helps as well. (usually less than 30 bucks)

Aug 11, 2007 | Paradigm PS 1200 Speaker

1 Answer

Loud hum on subwoofer.


try another speaker on that channel if you get no sound or it hums then it is time to take your set to a tech your audio out put on that side is damage along with some caps.good luck.

Mar 30, 2007 | Polk Audio RT1000I Speaker

Not finding what you are looking for?
Paradigm PDR 12 Speaker Logo

893 people viewed this question

Ask a Question

Usually answered in minutes!

Top Paradigm Speakers & Subwoofers Experts

 Grubhead
Grubhead

Level 3 Expert

4585 Answers

yadayada
yadayada

Level 3 Expert

60867 Answers

meteshadow

Level 3 Expert

489 Answers

Are you a Paradigm Speaker and Subwoofer Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...