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I have a ATI AT6012 Amplifier with a physical buzz from the fron

All of a sudden we're getting a buzz from the front left side of the power amp. I opened it up and there's a block that's buzzing under the Tamura 3FD-412. Any ideas? Both fuses are good..

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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  • 1 Answer

SOURCE: guitar/amplifier 'buzz'

I have two amps .i need to know how to set the knobs on them. to get the best sound out of them .i have a crate and a drive elite.i am a beginner. they are both bass amps. so PLEASE HELP ME

Posted on Dec 27, 2007

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  • 319 Answers

SOURCE: Rotel RMB-1095 Power Amplifier Problem

Sounds like wiring problems. Unhook everything, then get owners manual for proper instruction

Posted on Apr 17, 2008

robotek
  • 1512 Answers

SOURCE: Lexicon Lx-7 buzz sound

Hi chupetin2

If the problem is present with ONLY the speakers connected, that is no other powered devices like subs, or input/output cables, it will be a power supply problem inside the amp. If you have electronic fault finding skills, there will probably be a capacitor in a regulated rail that has failed.
If you do have a sub connected, be sure it is powered from the same mains source as the amp, or at least a GPO that is on the same phase. Different phases will induce mains hum, as will multiple earths. Try also temporarily moving the amp(whilst monitoring the hum) from where it is sitting and see if the hum is being induced into the amp by any other devices

Happy to talk to you more about this. Just ask:)

regards
robotek

Posted on Aug 19, 2008

  • 211 Answers

SOURCE: Buzzing in speakers on Carlsbro Marlin 8400 Power Amp

Hi,

If your volume is down and there's a hum, then it could be that your capacitors in the power supply are blown. Also there could be a problem with the bridge rectifier, possible that there's 1 or more diode's defect. Any technician can reapir that.

Hope it helps,
Gerard

Posted on Jan 31, 2009

mrgreenz
  • 962 Answers

SOURCE: why is my car buzzing or humming after i turn the ignition off?

If it's buzzing when the car is moving. it could be the wheel bearing making the buzzing sound. it needs to be replaced. you can probably hear it as being inside the hood.

Posted on Feb 16, 2009

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1 Answer

No sound from the left channel of my technics sl-b35 turntable


First of all remove the wires to the cartridge. With the amp on, touch each of the wires to the cartridge with your finger. one at a time. On one you should hear a loud buzz on the left and on another a loud buzz on the right.
If you get no loud buzz on the left. There is something wrong with either the connections between the deck, or the pre-amp of the amplifier. This will not effect any other function on the amp such as tape or cd.
If you do get a loud buzz on the left, check the cartridge connection or replace the cartridge.

Apr 07, 2017 | Technics Audio Players & Recorders

1 Answer

Does a 2004 Pontiac Montana's radio have an amplifier? If it does, where would it be???


Unless the face of the stereo says MONSOON there is no separate amplifier. On a Non-Monsoon Delco system all four amplifiers are built into the stereo, Left front, Right front, Left rear, and Right rear. Monsoon systems do have a separate amplifier which basically boosts the output of the four regular amps in the radio. I can't imagine all four of those amplifier output chips going out at the exact same time. I would pull the stereo and check if all plugs are seated properly. If those were all securely plugged in I would (myself) inspect the inside of the unit for the cause of failure. For example all four amp chips pull power from a common point and if one chip had a severe enough short in it, this may have caused the power feed trace on a circuit board to overload (too much current going through it) and created an open which killed power to all four of them. Any good electronics repair shop worth their salt should be able to repair it if you can locate one willing to try. It may only need a circuit board trace repair and one amp chip replaced.

Mar 07, 2015 | 2004 Pontiac Montana

1 Answer

How do i install my component


from the speaker outputs of the head unit / amplifier. Connect from the positive and the negative outputs to the respective positive and negative input of your X-over box. Now connect from the X-over woofer/midbass output to the bass driver. Now do the same for the tweeter from the X-over from the tweeter output to the tweeter. Make sure that all the positives and negatives are correctly connected.
If you are going to use your head unit to power the speakers then you should know that:
White & white with black stripe is the Front Left Speaker output
Grey & Grey with black stripe is the Fron Right Speaker output.
Green is rear left
Purple is rear right.
I think you get that the black stripe speaker cables are the negatives.
good luck

dreamsystems.

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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

Cambridge Audio Azur 340A amplifier,no sound


Start with the basics first. 1. With the amp on, in each imput socket plug a dual end phono cable in and touch the right and left plugs with your finger. You should get a buzz on each speaker. No buzz and the channel at that terminal is not working. If none of the terminals buzz. Then the amp is dead.
If some buzz and others not you have a pre-amp problem.
2: Amp Dead. Could be A power supply. B main pre-amp. C Power Amp.
The power supply check for a fuse.
The main pre-amp will only effect both channels if an IC controls both.
The Power Amp will again only loose both channels generally if it is an IC. It will be attached to a big heat sink and have lots of pins comming from it.
If it uses transistors for the main amp, you can check these with an Ohm meter. With the power off place the leads on each terminal of each transistor. If the meter goes fully over (like when you touch the leads together) each way it has shorted.
The thing to remember when repairing stereo amps. Is that the amp is two identical amps joined together. So what happens one side will happen on the other. If both channels don't work look for something that is common to both.
Good luck
PS never heard of 'cliperd'.

Sep 25, 2009 | Cambridge Audio Azur 340A 2-Channel...

1 Answer

My spider III 15 watt buzzes whenever i have a cable plugged in.


MAKE sure you have it connected to a three wire circuit that has the ground. A lot of these style amps will buzz if they are left ungrounded.

Also search for sources of buzzing light light dimmers.

Further, power supply electrolytic filter caps are suspect.

Aug 23, 2009 | Line 6 Spider Iii 15 Modeling Guitar...

1 Answer

Noisy/buzz


Usally a ground loop isolator will fix that problem. It plugs into the RCA's between the radio and the amp.

Try to reground the amp in a different spot.

Or run a refrence ground from the deck to the amp next to the remote turn on wire. (still keep your main amp ground hooked up)

DO NOT run your power wire next to the RCA's, that will induce a field which in turn can cause that buzzing sound.

Jun 03, 2009 | Crate SPA1600 Power Amplifier - SPA Series...

1 Answer

Buzzing


bad amplifier or input has bad ground conection or positive conection

can you describe if its only one side or comming out both?

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1 Answer

Drop out of left channel, Adcom GFA5802


It sounds as if there is a broken solder joint somewhere that slowly opens up with heat. The other possibility is that an input or driver transistor is dying. Since the whole channel is dying, I would guess the broken joint and/or dying transistor are near the very input of the channel.
A tech can very easily find the spot by playing the amp until it starts to die, then spraying small bursts of freeze spray, one component or area at a time, until the amp suddenly comes back to life.
 

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1 Answer

Sound not coming from left side surround sound speaker or my right side front speaker


it is highly likely that you're TV is outputting mono sound, hence the left channel only. check your physical connections to the TV and the balance / channel volume on the television as well.

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