Question about Sony Xplod 1200W Class AB Bridgeable 2-Ch. Amplifier w/Variable Low-Pass Crossover

2 Answers

Guitar/amplifier 'buzz' I have recently aquired an electric guitar and amplifier. However i cannot hear the guitar properly for the awful 'buzzing' sound off the amp. I know it is very ignorant of me but i hav'nt a clue how to go about stopping this problem. The amplifier is a vox valvtronix 15amp and the guitar is a yamaha pacifica 112. Thanks a lot Steve

Posted by on

2 Answers

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that gotĀ 5 achievements.


    An expert who has answered 200 questions.


    An expert whose answer gotĀ voted for 20 times.

  • Expert
  • 211 Answers
Re: guitar/amplifier 'buzz'


Have you allready connected another cable between guitar and amplifier. Or tried another guitar? When you turn on the amplifier without connecting the guitarcable is that buzzing sound still there? It could be several things, or maybe you are just overdriving the pre-amplfier of your Vox.


Posted on Jan 31, 2009

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer
Re: 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

Add Your Answer

0 characters

Uploading: 0%


Complete. Click "Add" to insert your video. Add


3 Points

Related Questions:

1 Answer

One bad channel

The thing with stereo amps is that they are actually two mono channels put together, so if one side goes you have the other side to tell you what the other side should be doing. So you can compare the good channel with the bad. For example taking voltage readings. Also you can buzz test it. Generally you can touch with an insulated tool parts of the amp to produce a buzz. So if it buzzers in the good channel it should buzz in the bad. When it doesn't you have found the bad part!

May 18, 2013 | NAD C160 Amplifier

1 Answer

My Marshall mg100dfx has just recently began to schreech and buzz as soon as I power it on. No instrument plugged in. No previous buzzing or unusual sounds. Now all of a sudden when I hit the power switch...

It sounds like a bad capacitor in the item, the value changes as it warms up. I would suggest pre-warm up before the public arrives because this may take time to find the problem, and then you can tackle it or bring it to a technician.

Jun 01, 2012 | Amplifiers & Preamps

1 Answer

I have a Vieta AT-230 amplifier that makes a buzzing sound on the speakers. You can still hear the music even though the buzzing is louder.\r\nI haven't been able to find any schematic diagram. Any...

This is the schematic of Vieta-225, and so it is not AT-230 but I think this should be almost the same.
At first I would check audio cable connection at the input of the amp bacause the connection contact error in the ground side of the audio connector can cause buzzing.

This is the Vieta 225 circuit diagram:

Good luck!

May 04, 2011 | Amplifiers & Preamps

1 Answer

Bugera 333xl every few seconds there is a loud buzzing. from

It looks as though you have ripple noise that amplifies into the output. First of all check if the mains voltage is going down to produce the low voltage hum. If not you will have to check the DC filter capacitors , couple in parallel to confirm the capacitor. IF the buzz is still coming through then you will have to isolate the preamp and wait it the fault is coming in. If not connect the preamp output to another amp to hear the same buzz to confirm the preamp to be faulty. If so you will have to trace by a voltage check when the buzz occurs to confirm if the preamp IC or the selector Ic is faulty. Some logic IC's can also produce this noise on static switching. If teh noise is appearing on both the channels, then I would still bet on the power section. So check once again on the rectifier/ regulators and capacitors. Hope this advice helps. Good day

May 16, 2010 | Amplifiers & Preamps

3 Answers

Loud buzzing noise when I turn amp on -won't go away

change the plugs on the chords.or both.they loose their resistance.good luck.

Feb 28, 2010 | Fender Amplifiers & Preamps

1 Answer

Bad hum or buzz from guitar when it is plugged in.

the input jack is probably grounding or has a bad ground. it probably has a bad solder joint on the jack to the circuit board. if you can open it up gently look at the pins of the jack to the pcb. make sure the battery is disconnected! dont want to short anything out. it may be hard to see, but you can push on the jack and see if the legs/pins move, etc. humming and buzzing sounds usually are a bad ground. especially on a unit this small.

Jan 04, 2010 | Fishman PRO EQ Platinum Bass Preamp...

1 Answer

Marshall G15RCD 15 Watt Amp - Buzzing like a Chainsaw

I had the same problem with my amp. you need to re solder or replace and re solder one of your jacks. Most likely the JK1 the jack that you plug your guitar chord into. If you take your amp apart you can wiggle the jack, it probably just needs to be re soldered onto the board, very easy fix. (Be careful with the IC4 chip connecting the holder plate, its very common to break the pins during the repair process. Just unscrew it from the metal plate and that will keep it from wiggling and breaking off). I found a web site that sells the JK1 jack for like 5 bucks but you can prob. contact Korg in NY and order the part or have a guitar shop order it for you. Good Luck!!

Apr 25, 2009 | Amplifiers & Preamps

1 Answer

My fender twin has alot of buzzing and hum noise

It is usually caused by interference somewhere in the room. A major source is art CRT such as a TV ot computer monitor. First try turning off any other electic devices in the room. Your could also see if there is a ground lift switch on the amp. If that dosen't do it, you can try lining the cavity of your guitar with tin foil. I t sounds weird but it does cut back on some interference. If none of those work, bring your amp to your local tech and have the preamp tubes tested. It may be that one of them is going bad.

Dec 14, 2008 | Amplifiers & Preamps

1 Answer

Amp works on off on off

The buzzing is possibly the electrical mains hum at 50hz, all amps have a hum/buzzing... if you have to tap the jack lead between the guitar and amp it could simply be a connection problem, the cable may be old and internally damages, maybe loose wiring on the other side of one of the input jacks

Jay.D Bsc Music Technology

SEO - Web business optimisation and online promotion

Dec 13, 2007 | Amplifiers & Preamps

Not finding what you are looking for?
Sony Xplod 1200W Class AB Bridgeable 2-Ch. Amplifier w/Variable Low-Pass Crossover Logo

354 people viewed this question

Ask a Question

Usually answered in minutes!

Top Sony Amplifiers & Preamps Experts


Level 3 Expert

4518 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17129 Answers

The Knight
The Knight

Level 3 Expert

66578 Answers

Are you a Sony Amplifier and Preamp Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides