Question about Music

2 Answers

My jcm 2000 tsl 100 , doesn't produce the amount of gain i expect from it, i thought it gave as much as a mesa rectifier amp, i replaced the preamp tubes , but still, not enough gain

Posted by on


2 Answers

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.


    An expert that has over 500 points.

  • Expert
  • 336 Answers

Geez, how much drive or gain do you need? Maybe you should consider using a sustainer on your guitar if you expect it to be like using an ebow. No amp gives infinite sustain, especially a solid state one. A cheap guitar doesn't resonate well enough to do it regardless of what kind of amp you use. Too much drive takes away the punch attack or crunch and turns the sound muddy which makes it sound cheap, like a busted speaker. Marshall's aren't known for their drive, but for their tone overall. The combination of knowing how to use your effects and layering them in ways would give what I think you want.

Posted on Mar 08, 2013

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 20 achievements.


    An expert that got 10 achievements.


    An expert that got 5 achievements.

  • Music Master
  • 5,603 Answers

The sound level output is a true measure and unless you can compare specifications between units, you are probably listening to salesmen who want to sell you product.

The power level rating is OFTEN falsified and a LOT of the actual sound level performance depends upon the speaker used.

You should get a sound level meter to compare amps.

Remember to NEVER run more than 100 Db to avoid legal liability for hearing damage. I know several musicians who are nearly deaf now from being exposed to high levels too long. You can look up what the govt limits are now with Google.

The 2000 should EASILY reach the 100 Db level.

Posted on Mar 14, 2011


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


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



Related Questions:

1 Answer

Vox mini3 hiss or white noise when reverb or delay is selected.

The way I've found this amp works is it always needs a certain amount of "Gain" from the gain nob in order to produce any sound.Unfortunately the more gain the more hiss and crunch at least thats been my experience, it could also be you have one of the filters "guitar sounds" left on.The guitar sounds nob has to be left on clean to attain pure clean.There could also be a connection problem.I have this at the moment.I have to bend my wire in the right place to keep the thing going.Another issue I have with his amp is its been replaced my first one just conked out completely I couldn't get the cash back when I asked so I just got another one.This new ones been fine but not without hiss.I think its a hissy amp I hate to say it.Not the best amp by a long shot.

Oct 13, 2011 | VOX Amplification Vox MINI 3 Amp Combo

1 Answer

Preamp tubes for XXX amp. How do I choose, and can I replace myself?

Replace with like part numbers... 12AX7's and 12AT7's are common numbers. Unless the tubes have failed heaters, do NOT expect much if any improvement. If the tubes are microphonic and lightly tapping on them produces major noise that would be a reason to replace. Try to avoid getting skin oils on the glass of tubes when replacing.

May 15, 2011 | Peavey Butcher Guitar Amplifier Head (100...

3 Answers

All 3 cannels on my kb 100 working intermitently ? then not at all. can anyone help......cheers.......

Sometimes the bypass switch contacts on the effects jacks get oxidized and fail to connect the preamp to the power amp... test this by plugging another guitar cable between the two effects (send and return) and see if the amp is solid with the cable in place, These jacks in the music equipment are really not very durable. If in failed mode you can plug a cable into the effects RETURN and touch the tip and NOT get a it of hum, there is a problem in the power amp portion. Conversely if that works, then plug a set of headphones into the effects SEND and see if you can hear a signal from the inout coming through... Itwill only be on one side of the headphones (left) as it is a monaural jack. If you can't hear a weak signal here, the problem is in the preamp... LIKELY a cracked board or bad solder around one of the volume or master gain controls... a very common problem and often is intermittent... you might try wiggling the volume/gain pots sideways a tiny bit... if it pops on, remove the amp and look for bad solder on the control leads where they attach to the board.

Jan 21, 2011 | Peavey Kb2 1x10' Keyboard Amplifier

3 Answers

I have a Peavey 8600 amplifier. It sounds great but when only operating vocals, in order to get the highs of your voice just right, the speakers put off a large amount of white noise. While singing, you...

There is not enough info here to provide a complete answer, but let me give you some background:

There will always be some hiss. This is due to general amplification where a small amount of noise is amplified along with the general signal. In most cases, the signal is strong enough to overpower any noise that is present (vocals in your example). This noise should not be that noticable in normal cases. If there is an automatic gain control in the line, this could account for it as with "silent" times, the gain will automatically be increased potentially to the degree where the noise is noticable.

Barring that scenerio, if the input signal is too low, the overall gain necessary to produce reasonable volume at the speakers will also be such that the noise is noticable. In order to track this down, please provide details about the current setup including:

1) Microphone make and model being used
2) Input being used on the mixer
3) Gain level being used for the mic channel
4) Gain level being used at the master level.


Jan 07, 2011 | Peavey Xr 8600 8 Channel Powered Mixer

1 Answer

Hi, I've owned a Fender Hot Rod Deluxe since '01. Around '06 I started having problems like crackling sounds when on but guitars volume was all the way down. Loss of volume here and there. While amp was on...

In YOUR amp, take a pencil and tap teh sides of the tubes GENTLY, listening for any crackling... note SOME microphonics is normal in the preamp stages.

Since retubing it fixed it once, it is likely either a tube was bad OR a pin of a tube wasn't quite making so replacing the tubes cleaned it and made it work. Tubes DO go bad, especially when they are vibrated like in these amps... BUT don't just replace the lot, try to find which is at fault..

On your friends unit, LIKELY an electrolytic bypass capacitor for one of the reverb preamp stages has dried out and needs replacing.

Apr 23, 2010 | Fender Hot Rod Deluxe Guitar Combo...

1 Answer

Amp has no power Tried multiple cables but still nothing. Opened up the amp and everything seems ok. Any thoughts?

I will assume by"no power" you mean NOTHING is working, The likely cause is a failure in the power amp chip or the rectifier filter. Each of these would LIKELY blow the internal fuse. Using multimeter or a a voltmeter you can isolate the cause. You should find plus and minus voltage from the rectifier across the filter caps. probably at least 20 top 30 volts minimum.

If you mean the amp just doesn't generate enough noise, it likely is doing the best it can. This is a small amp and ypou can't expect to compete with 100 wat to 200 Watt amps. The speaker is too small to do that for one. This amp is good for practice.

Apr 09, 2010 | Line 6 Spider Iii 30

1 Answer

Amp sound fuzzy and out of tone.

Well if you want goo dpinch harmonics to squeal you need a decent amount of gain and good pickups. What guitar are you using, some lower model passive pickups have bad frequency response when you try to do pinch harmonics. If you have decent pickups I would say get a higher gain preamp and just run the amp on the clean channel. There a re tube preamp pedals out there that have masaive amounts of gain and they are reasonably priced. There are also so good amps out there for a decent price like the 6550 from peavey. I have a 5150 block letter and that thing can produce good pinch harmonics along with my EMGs. Good luck man, oh and there is nothing wrong with your amp, it is just time to move on. There is only so much you can do with solid state amplifiers in my opinion.

Jan 13, 2010 | Music

1 Answer

Marshall JCM 2000 dual super lead 50 watt going out on me

Very nice amp!

First off, is the amp getting sufficient power? An unreliable AC current from your wall can affect the performance.

Have you tried the amp with a different speaker? Checked for a loose connection from the amp to the speaker? Is it the correct ohms rating?

Second, are you experienced in electronics? The problem could lie in a faulty solder connection, a bad component, etc.

If you are not confident in opening the amp and troubleshooting it yourself, take it to a audio repairman. Marshall's are some of the easier ones to fix.....

Nov 22, 2009 | Marshall Mg50dfx 50-Watt Combo Guitar...

4 Answers


If the tubes are not lighting, either the fuse has blown or the power transformer might have an issue.

Be vvery careful as there are lethal voltages present in these.

If the fuse blew, replace it and try just once as there could be other problems and more damage could be done.

Sep 29, 2009 | Marshall Music

Not finding what you are looking for?
Music Logo

Related Topics:

111 people viewed this question

Ask a Question

Usually answered in minutes!

Top Music Experts

Vito Vacirca Jr.

Level 2 Expert

140 Answers


Level 3 Expert

76109 Answers


Level 3 Expert

102366 Answers

Are you a Music Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides