Tube amp troubleshooting low volume

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Jun 22, 2014 · The use of the op amp in the circuit led me to believe that I could achieve a much greater volume than this amplifier can handle in a realistic application. With this hardware at least, single notes with a decent interval between them can be played, distortion free, at significantly higher apparent volumes then multiple notes in rapid succession.

This is even more true when it comes to tube amps. In order to get the best tone out of a tube amp it's crucial to understand how tubes react as the volume is increased. One of the main reasons that players opt for tube amps over solid state is the natural compression and warmth that a tube produces when it is pushed. I have a Fender Princeton 65 Reverb 15W (tube amp) and my son has a Peavey ValveKing 212 100W (tube amp) and we don't have the problem you mentioned on low volume. Check your pre-amp tubes "12AX7A" or your "12AT7" tubes. The 12AT7 is usually associated with the amps tone and one 12AX7A is usually the transformer tube. I think 'tube amp' and 'low volume' might be kind of a paradox, but after years of playing through solid state amps, and knowing that I generally prefer a tube sound, I'd like a tube amp even if it's only for at home playing, writing, and analog tape recording. Adjusting gain and volume. The amplifier’s power rating (wattage) can impact the noise floor level. If you have a 100-watt tube amp, it’s probably going to make more noise than a 15-watt tube amp. Also, if your amp is designed for high gain settings, it will most definitely make more noise than an amp designed to run cleaner. If the amp/receiver is the problem, then will a ground loop isolator not work as a fix? The amp, without anything plugged in, still creates a hum (sort of like an auto filter sound *thup thup thup thup thup) in both speakers, unaffected by volume control.

MICROPOWER TUBE AMPS Another option for getting a real tube-amp sound at low volume is to get a tube amp with an extremely low power output. Such low-wattage amps are fully functional and are capable of powering a 4x12 speaker cabinet, but with a power rating of below 2W RMS.

Hey guys.. looking to confirm a problem on my amp. its a marshall 3203, so 12ax7 phase inverter, 2 power tubes, and solid state pre. After bringing my amp for a car ride, I now have a huge lack of volume from my amp. At about 2 or so the volume is normal, kinda loud, and then from there it doesn't really get much louder. The manifestations of this poor performance included a distorted sound at a low volume, a generally mushy and ratty/rattly tone, and an overall output that didn’t seem as loud as it once was when the amp was in its prime. I noticed further that rather than a wholesale volume loss, the amp was plenty loud with the volume knob up to about noon. Solid state amp decreased output volume ... Does anybody know what will cause weak/low output volume problems with a solid state guitar amp. I read it can be bad caps ...

This can result in increased hum, loss of low frequency response, low gain, and sometime a phenomenon known as motorboating, in which the amp makes a continued popping or putting sound. One of the functions of capacitors in tube audio circuits is as ac coupling or dc blocking between stages. Sorry to say, but I'm afraid there's no problem as such here – it's just not a very good amp. Actually, most guitar amps have a substantial amount of distortion even in "clean" mode and at low levels if you measure it, only, in a good tube amp this comes over more as a pleasant kind of soft-compression. May 21, 2017 · A rectifier tube can also have low emission. Once I put silicon rectifiers in parallel with the rectifier tube in a guitar amp - it was a fair bit louder and there was a pretty blue glow around the edges of the output tube plates. If you do silicon in a guitar amp - you're supposed to put about 100R power resistor in series with it.

Often amps that don’t reach a certain volume sound choked. A 100-watt amp on 2 isn’t going to sound like that same amp on 4. This doesn’t have anything to do with tube overdrive. I find that amps don’t start opening up until they’re on 3. This can become a problem for certain recording situations. Let’s look at a 100-watt amp for ... Re: Output transformer troubleshooting----- I think there ar a lot of reason for low volume and ugly distortion... go once over the Tube Amp Debug pages, (click on the link in the upper left corner) that may help you to track down the problem ... if you get stuck ask again of course. Cris klarsen01 Junior tube assistant Posts: 6 (2/16/04 12:41 pm)

Help with no/very low volume on stereo amplifier to speaker out. Need to crank all the way up for thin sound. ... I change out speakers, same problem, I try all the ...

Sep 16, 2010 · if you have power tube problems, you can use the same method, but its a bit clumsy, cause power tubes become very hot, so you need to wait some minutes until you can touch them with the fingers and replace them the lc30 is an autobias el84 amp, so matching powertubes is not really a must have, nice to have but no must. Sep 16, 2010 · if you have power tube problems, you can use the same method, but its a bit clumsy, cause power tubes become very hot, so you need to wait some minutes until you can touch them with the fingers and replace them the lc30 is an autobias el84 amp, so matching powertubes is not really a must have, nice to have but no must.

Tubes cause at least 50% of tube amp problems. If you have a tube amp and you haven't tried changing all the tubes, then do that first. Even problems that you wouldn't associate with tubes could be the tubes. If changing all the tubes fixed the problem, then go back and try to figure out which tube it was and replace that one. Units like the Aracom PRX-150 Pro, the Scumback DBL (formerly Alex’s Attenuator), Tone King Iron Man, Komet Air Brake, Dr Z Air Brake, smaller Dr Z Brake Lite and Swart Night Light and others have proven real game-changers for players seeking old-school, big-amp tone at reasonable volumes, and they tend to be no more of a danger to your amp than is the strain of running the amp hard in the ... Newbee help- Volume low even at full preamp volume-??? ... If you are using the 12UA7 tube, then perhaps you are not getting enough gain. ... we have a problem! ...

This is an “Amplifier Troubleshooting Flow Chart” that will assist you in determining the problems you may be experiencing with your amplifier (Solid State & Tube) and the corrective actions required. This Flow Chart is the work of Aspen Pittman, the author of “The Tube Amp Book” and reproduced from ”The Complete Guide to Guitar and ...

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I imagine it's a tube. Pre-amp or power tube?? Like a ding-bat, I ran Amp for about 10 seconds without Cab. It's OK at low volume, which is how I play normally anyway. This is an “Amplifier Troubleshooting Flow Chart” that will assist you in determining the problems you may be experiencing with your amplifier (Solid State & Tube) and the corrective actions required. This Flow Chart is the work of Aspen Pittman, the author of “The Tube Amp Book” and reproduced from ”The Complete Guide to Guitar and ... Best Low Watt Tube Amp for the Money. When it comes to finding the best low-watt tube amp, there are tons of different factors to consider. Price, style and effects should all be taken into consideration—though the range and versatility of the tone should come first and foremost.

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Jun 26, 2017 · Tube amp volume loss! An easy fix (this time) Jorma Spaziano. ... I recently experienced sudden and severe volume drop in my lovely Engl Powerball. ... Troubleshooting Your Tube Amplifier ... Dec 16, 2008 · Then, one by one, replace each preamp tube and see if that alleviates the problem. If you still have the symptom, you should next replace the output tubes. For the purposes of troubleshooting, you can install a new set without re-biasing the amp, but if they are indeed the cause of the noise then you should definitely take the amp in for biasing.

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Often amps that don’t reach a certain volume sound choked. A 100-watt amp on 2 isn’t going to sound like that same amp on 4. This doesn’t have anything to do with tube overdrive. I find that amps don’t start opening up until they’re on 3. This can become a problem for certain recording situations. Let’s look at a 100-watt amp for ... Hello everybody! I've got a problem that i hope someone here may help me with. I have a 12 year old Vox amp, a hybrid solid state with a 12AX7 tube Vox Cambridge 30 Reverb which i have modded (i replaced the problematic optocoupling from a LT9914 to a VTC5L3 and i changed the original TDA2050...

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The manifestations of this poor performance included a distorted sound at a low volume, a generally mushy and ratty/rattly tone, and an overall output that didn’t seem as loud as it once was when the amp was in its prime. I noticed further that rather than a wholesale volume loss, the amp was plenty loud with the volume knob up to about noon.
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Units like the Aracom PRX-150 Pro, the Scumback DBL (formerly Alex’s Attenuator), Tone King Iron Man, Komet Air Brake, Dr Z Air Brake, smaller Dr Z Brake Lite and Swart Night Light and others have proven real game-changers for players seeking old-school, big-amp tone at reasonable volumes, and they tend to be no more of a danger to your amp than is the strain of running the amp hard in the ... If the amp/receiver is the problem, then will a ground loop isolator not work as a fix? The amp, without anything plugged in, still creates a hum (sort of like an auto filter sound *thup thup thup thup thup) in both speakers, unaffected by volume control. How to troubleshoot preamp and rectifier tube problems and solve other common tube amp concerns. In Part 1 of Keeping Your Tube Amp Healthy, we talked about ways to prolong tube life and select new power tubes when they’re needed. This is an “Amplifier Troubleshooting Flow Chart” that will assist you in determining the problems you may be experiencing with your amplifier (Solid State & Tube) and the corrective actions required. This Flow Chart is the work of Aspen Pittman, the author of “The Tube Amp Book” and reproduced from ”The Complete Guide to Guitar and ... Best Low Watt Tube Amp for the Money. When it comes to finding the best low-watt tube amp, there are tons of different factors to consider. Price, style and effects should all be taken into consideration—though the range and versatility of the tone should come first and foremost. Jun 26, 2017 · Tube amp volume loss! An easy fix (this time) Jorma Spaziano. ... I recently experienced sudden and severe volume drop in my lovely Engl Powerball. ... Troubleshooting Your Tube Amplifier ... Spark plug color white