Question about Technics SA-EX300 Receiver

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Speakers "buzz" or sound blown on right side only on both main and remote

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One of the output amps is blown. This requires professional repair.

Posted on Nov 15, 2009

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Posted on Jan 02, 2017

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1 Answer

I checked my speakers there not blown out still making buzzing sound. Why?


the buzzing sound is an symptom or indication that there is a defect on the output audio system from your unit. A good audio system does not give out a buzzing sound.
Check for shorted audio wire coming from your audio unit going to the speakers

Feb 23, 2016 | Audio Players & Recorders

3 Answers

What would cause a buzz in speakers?


There are many causes of buzz, so it should be checked step by step :
- Bad connection on the input connector, or cord.
- Amplifier, basically have the block diagram like this. View image.25850665-l1qpqmriditabltrjczr2eku-2-0.jpg
If in one block damage, buzz can be heard.In the amplifier.
Generally occurs in the PSU and / or power amplifiers.
Fix it to the experts,because it requires a good knowledge of electronics.
Blown speaker cone, does not cause a buzz.
Short circuit along the wires supplying the audio, it will not cause any sound in the speakers, including the sound of music.
Try also, disconnect the input connector, whether the buzz is still audible. If after the input connector is removed, the buzz disappears, the possibility of buzz came from another device before the amplifier.

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1 Answer

Buzzing sound car stereo


A lound buzzing sound is an indication that the Driver (transistor) for the amplifier final is bad. This is not so much a buzzing and it is extreme in loundness.

May 05, 2013 | Chrysler concorde amplifier. radio. ....

1 Answer

Hi I just got a Technics SU V2 amp and can't get sound from the speakers. What size speakers would suit this amp? What is the correct method to connect the speaker leads to the back of this amp,...


Being a 500W amplifier, you need to connect speakers with 300W each. The correct method to connect speakers is red terminal of speaker should be connected to red terminal of amplifier & black to black. The left side to left side speaker & right to right speaker. There may be main & remote terminals. Main speakers are the speakers at local place of the amplifier & remote for remotely placed speakers. I do have Technics SU-V85A which is somewhat similar. Enjoy! A nice piece to listen.

Oct 22, 2011 | Technics SUV500 2-Channel Amplifier

2 Answers

Vizio E320VL has a buzzing or static sound coming from the right speaker.


You may have blown your right speaker if you max the sound allot, you may need to replace. Hope this helps- Pleas comment

Mar 17, 2011 | Vizio E320VL 32 in. HD Ready LCD TV

1 Answer

How can i fix the blown speaker


If it has headphone jack, try to see if you get both channel OK. I would use the powered PC speakers attach to the Audio Line out RCA jacks than the cheap buit-in speakers, just make sure that you set the audio set up for the Audio Line out to be variable so you can use the remote to adjust the volume, and just set the PC volme to about mid point instead.

Nov 11, 2009 | Protron PLTV-32 Television

1 Answer

Hitachi SR-2000 receiver's right speaker connection does not work


The SR-2000 has fuses for both left and right outputs. Make sure neither are blown. Otherwise this receiver has a STK 463 integrated chip that controls the output for both channels. When replacing the STK-463 it is also acceptable to use STK-465.

Jan 10, 2009 | KLH R3100 Receiver

1 Answer

Sound vibrates


Test it by moving the bass and treble up and down. If the buzzing seems disappear at lower volumes with little bass and appears from one side only, it is probably a blown speaker on that side.

If the buzzing is apparent even at very low volumes or from both sides, it is probably an audio board issue. I am not certain if your model has a separate audio board or that functionality resides on the main board.

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3 Answers

Loud humming buzzing sound coming from subwoofer


make sure you have the speaker connection right if you do then it is a ground problem try plugging it in a different outlet

Dec 16, 2008 | KLH HTA-4906 System

1 Answer

Possible Blown Speakers?


Any speaker, if abused, can be blown. And if overdriven with dirty power at extreme levels it is not uncommon to burn out the voice coil. You might also want to check out the speaker surrounds. If they go, the speaker works but sounds lousy.

Localize the problem by hooking up two known good working speakers and see what happens. If they also do not work properly or sound like cr-p then the radio is at issue.

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