Question about M&K Sound Mp Series LCR-750 THX SELECT Main / Stereo Speaker

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There is no sound coming out of the rt. 750 tweeter. Left sounds fantastic.....right sounds muffled. any ideas? I disassembled and all contacts are tight, clean though suspect the array of wire coils/capacitors or whatever else is in this beast has developed a problem. All three speakers appear to be in perfect shape but I know looks can be deceiving. Any suggestions would be greatly appreciated.

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Since you're that far into it why don't you either swap the tweeters or get a digital ohmmeter and check the dead one for an open circuit vs whatever the live one reads? Disconnect one lead from the tweeter first.

Posted on May 26, 2010

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I work in a church that has 4 passive speakers across the room, 3 out of 4 of them sound super muffled and n one of them sound perfect Ive tried switching power amps, there is no processing help?


I would say from your description that the tweeters are blown.
Can you take the speaker that sounds good and swap it out with one that sounds bad. If you do that and the good one still sounds good. You have a tweeter problem. And they would need to be replaced.

Apr 01, 2015 | Tannoy Audio Players & Recorders

1 Answer

Only right side tweeter working


check you haven't got the wires on the back of the tweeter touching, Then check the rest of the wiring you may have touched. Jon

Dec 18, 2014 | Cars & Trucks

1 Answer

Hi, I have a problem with no sound coming from the TWEETER of one of my Wharfedale Diamond 10.1 speaker. The overall sound is very muffled whereas the other speaker is very bright. I have swapped over left...


Check the speaker/s first. If found OK; check and replace the damaged component/s at its audio output section circuit board. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. Surf the site with patience.
http://electronicshelponline.blogspot.com/

Nov 29, 2014 | Audio Players & Recorders

1 Answer

ONLY GETTING MUFFLED SOUND FROM ONE OF MY MACKIE SRM V2 SPEAKERS,HAVE CHANGED DIAPHRAM BUT PROBLEM STILL THERE


If you've changed the tweeter and the sound is still muffled the fault is with the HF amp, or the cross-over. You will have to send the amp assembly for repair as it is all surface mount components in there -nothing you will be able to fix yourself. Sorry for the bad news!

May 04, 2011 | Mackie Srm450v2 Srm V2 Active Speaker...

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I have a problem with the tweeter sound in one of my VR975 Boston speakers. The highs seem to come and go. It is definitely limited to one of the speakers because I can switch cable connections in the...


Register and download the manual for free at retrevo.com'

http://www.retrevo.com/support/Boston-Acoustics-VR965-Speakers-manual/id/522dj380/t/2/

A loose or intermittent cable contact on the OUTSIDE would affect ALL speaker output, not just the high frequencies, and it would probably produce speaker-threatening crackles.

That loose tweeter connection the other guys found isn't fixed. Go back and make them fix it right.

What are your present speaker connection ends if NOT bare wire?

Feb 19, 2011 | Boston Acoustics VR965 Speaker

1 Answer

The sound from my home stereo sounds muffled. I checked for loose wires but did not find any. I have Celestion 15 speakers - they are about fifteen years old.


Muffled sound? Like no treble? Wires wouldn't cause it. Could be bad tweeters.

More specific details re: electronics, source(s) might help.

Jan 15, 2011 | Audio Players & Recorders

1 Answer

Suddenly, my outdoor speakers sound kind of "muffled"


If these speakers are two or three way speakers, it is possible that the tweeter(s) are blown in them.
Try and remove cover to check.
If the sound is not distorting, but just flat and muddy its the tweeters.
Put the other ones on this channel, to make sure it is not the amp.

Jun 13, 2009 | Insignia Simulated Rock Outdoor Speakers...

1 Answer

Muffled sounds from speakers suddenly on our boat


Hi airnurse

If you are using a cassette deck for a source of music, then it will have dirty heads. This can be cured by using a head cleaner cassette. Muffled sound from the loudspeakers usually points to a faulty high frequency driver(tweeter). Is the sound muffled on radio or other sources as well. If so, then you have faulty tweeter(s) to any speakers that are muffled.

Of course in saying that, you should check that someone has not just turned the treble control all the way down, or the bass control alll the way up :) Pays to check.

I am more than happy to answer any other questions you may have about it, just give me a hoy :) If you are still unsure, or have problems, then before you give a rating for this advice, please get back to me and we can try some more things.
Thanks for using FixYa, If you consider the advice I have given you as sound, a FixYa rating is a great reward for my efforts to help you. Cheers.

regards

Jun 18, 2008 | Audio Players & Recorders

1 Answer

Tweeters & Midrange Speakers


If you have a Ohm Meter, check the resistance to the speakers. If it is very high, the speakers are burned, (or the crossover is (just capacitors, and resisters...cheap)). If it is close to 4 ohms check the wiring and connectors..to and at the speakers, most likly the receiver/amp is not blown.

Apr 20, 2008 | KLH 1230SB Main / Stereo Speaker

1 Answer

Speakers sound quiet and unclear


You probably burned tweeters and damage midranges but before disasembly check equalizer

Feb 27, 2008 | Audio Players & Recorders

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