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After having my speakers turned on for a whilr the back plate is so hot you cannot touch also the sound is very distorted so much so you can only hear crackling

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Sounds like a heating problem that may be caused by faulty wiring or the whoel system itself is overheating.

Is this a computer? need more info.

If so, take it apart and clean out dust and debre form processor cooling fan and heatsink and anywhere else its built up, also make sure there isnt any bad wiring or funky plastic smells comming form it.

Posted on Jun 13, 2008

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My panasonic dvd stereo system sa-pm91d when the volume is turned above 25, it plays distorted sound, it sounds like I have incorrectly tuned a radio channel even when using the auxiliary input


Hi Gusma,
If you have Distorted sound.
    These may be the causes of the problem:

  • Make sure the speakers wires are properly connected.Check the color codes, be sure they are rightfully followed.
  • - Shorting (bare wires touching) of positive and negative speaker wires.
  • - Using speakers with an impedance lower than that rated for this unit.
  • - Straining of the speakers through excessive volume or power.
  • - Using the unit in a hot environment without proper ventilation.
I am also including a link to the User Manual. Read it thoroughly.
Best of Luck,
JP
Panasonic SC PM91D Operating Instructions Manual

Jun 26, 2015 | Panasonic Audio Players & Recorders

1 Answer

Hot


Is this heat shows up when they are playing moderate to high volume level?

Jul 14, 2012 | Behringer Eurolive B212A Speaker

1 Answer

My Velodyne CT150 was distorted for a while. Then the sound is completely gone. I checked the speaker, but seemed to be working. What could be the problem?


Define "seemed to be working". Is it or ain't it? A huge clue that something is in distress or having death throes would be distortion.

Either the driver is hot or the amp is shot. You can test the driver by floating it from the amp and attempting to drive it with any other amp channel, or just touch the speaker leads to a small battery. It will click or make static sounds.

Oct 27, 2011 | Velodyne CT-150 Speaker

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On low volume using the clean channel the sound is great but as soon as you get to about three or more the sound gets a bit distorted,the amp is the fender hot rod deluxe, ithort i may had blown the...


try a differrent speaker of suitable wattage and ohmage (displayed with a number next to a ? symbol on the back of the speaker),

or

remove the original amp speaker and gently push in and out on it, checking for uneven resistance or scratching. the speaker should retract and return smoothly, without any scratchiness or uneven resistance from within, and if there is any of this scratchiness or uneven resistance from within, the speaker is likely damaged from too much wattage or distortion.

Mar 09, 2011 | Fender Hot Rod Deluxe Guitar Combo...

1 Answer

The sub in my car sounds like it's blown when i try to turn it up. i was wonder if there was anything else that would make it sound like that or if i'll just have to get a new one.


If you have a short in the wires going to the sub it will cause the speaker to distort at any medium to high volume. If you can get to the back of the speaker check to make sure the connections are clean and tight and that they are not touching each other. if everything looks good you may want to try to wire a house or computer speaker to the leads to check if it's the signal or the speaker before you buy a new one.

Jan 07, 2011 | Car Audio & Video

2 Answers

Distorted, cracked sound coming through to the speakers


is it possible your new reciever has a built in phono pre-amp?

If so, you need to switch off the pre-amp inside the turntable (lift up the rubber matt, and rotate the plate untill you see the switch at the back)

Try again now?

Feb 12, 2010 | Aiwa PX-E860 Turntable

1 Answer

Speakers keep distorting and cutting out


sounds like one of the speakers are blown or the cone is deteriated/ripped.when turned up this causes yhe coil wires on the back of the cone to touch the casisng shrting it out.upgrade/replace standard speakers with new to rectify.thanks please rate me.

Mar 05, 2009 | Dual XINBP212 Car Subwoofer

1 Answer

Center Speaker sound just not right


If the optical cable was bad, the sound would be distorted period. The optical cable (whether coax or fiber) just simply carries the coded audio to the receiver which in turn decodes it. I have never heard of a signal just screwing up the center channel, and I've been at this better than 30 years. Not to say it's impossible, but very unlikely.

Did you try swapping speakers? Move the left one to the center and the center to the left. Does the center remain "distorted"? Does the left become "distorted"? If the center remains distorted, the receiver's center channel has something wrong with it. If the left is distorted, the speaker has a problem.

For the future. it is un-neceaasy to purchase expensive cables. In fact it could make things worse. The claim to fame of most expensive cable manufacturers is the gold plating on the connectors. Unless the bioth sides have gold plating (receiver, cable box) this actually creates a capacitive reactance between the different metal types. FYI-capacitive and inductive capacitances are the basis for designeing cross-overs, filters, etc. So basically, an undesired filtering effect is created. This applies to speaker cables, audio, video, etc....

Jeff

Feb 15, 2008 | Harman Kardon AVR 635 Receiver

2 Answers

Sound problem


Make sure all speakers that are hooked up sound ok. If any of them sound lower then the others or sound distorted you may have a speaker with a partially shorted voice coil. If speaker or speakers pop when power is first applied you may have a grounded speaker that should not be grounded. Each speaker wire rides on 6vdc and if any speaker sees a ground you will have 6v across voice coil which would explain any popping noise when first turned on and radio may play for awhile then overheat. be sure speakers are 4 ohm min per ch otherwise amp will run to hot. Just a few Guesses

Jan 13, 2008 | Denon AVR-1708 Receiver

1 Answer

Amp is getting hot


amp naturally get hot but not hot enough to burn your finger.if all the speakers working,no distorted sound(sound clear),the problem might be the ventilation(free air flow) of amp.check the blower fan if working or check the exhaust holes maybe it is blocked. here are the other reasons; 1.)speaker wires touched the chassis ground. 2.)mismatched speaker to amp impedance. 3)overdrive input or u tap low input(from amp) to high output(of stereo) 4.)ur amp is out of bias. u need an audio technician for this... hope this help u...

May 15, 2007 | Alpine MRD-M1005 Car Audio Amplifier

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