Questions
Showing results 1 to 20 of 122
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Hello I'm considering to buy DSL1HR or CR for silent recording at home. But I would like to use fx loop SEND output to record raw valve soud to apply impulse response later.

 

Is it safe to unplug cabinet, and without connecting headphones use these amps in such manner? 

And if so, why? Usually valve amp needs speaker load

 

Thank you in advance for the answare!

Sergey

Valve Speaker Cabinet recording fxloop FX DSL1CR DSL1HR send silent

asked 04 Dec 2019 at 12:44 PM

Sergey Tereshkin
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1

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11

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Is the DSL5CR Combo cathode bias or will I need to bias the amp after swapping tubes? Pre-amp and power amp tubes? Thanks in advance

 

Tubes

asked 04 Dec 2019 at 02:04 AM

tom zenner
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1

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52

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Amp is a little over a year old was fine then past few weeks after warmup the volume would dump. All cables, inputs were checked and new JJ tubes put in which seemed like it fixed the issue However when I engaged the Tone Shift button the volume dumped again and when manipulating this button it caused the amp to crackle and seemed to be shorting out the power which intern was dumping the volume.. My tech replaced the Tone Shift curcuit but still when pushing the button in it causes the same issue, we are at a lost..and frustrated...Any Comments or Suggestions greatly appreciated

Tubes DSL

asked 16 Nov 2019 at 06:23 PM

Stephen McCarron
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2

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47

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Dear,


I have a new Marshall DSL1CR and it make a popping noise when changing channels from the Ultra gain to Classic gain while playing.

If I mute the guitar, or changing channels from the Classic gain to Ultra gain or using the emulated out there is no pop.

There is same noise when switching off it.

Is it normal or somethings wrong with my combo?

Thanks & best regards.

Tubes noise DSL1CR

asked 16 Nov 2019 at 02:29 PM

József Szekeres
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1

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42

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I need a new circuit board for my Marshall 20/40 combo amp. I turn the amp on and it will play for a little while and then all sound ceases until I turn it back on. I've change out tubes to no avail and I broke out my old amp mod equipment and tested circuits. That's the only piece I am unfamiliar with so I'm thinking that's the issue. My vendor tells me they can't order it because the amp is discontinued. Where can I order one so I can fix my amp?

Tubes

asked 15 Nov 2019 at 05:22 PM

Jeffrey Johnson
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0

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88

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Hello everyone,,

I own both a Stanmore and a Woburn (recently), and I have never had a single issue with either. I've used the Stanmore literally daily for a few years as my main living room speaker for both streaming and AV-vinyl, and the sound and punch are both absolutely incredible. The price you've quoted sounds like a steal, and if it is in good shape I would internet cafe sweepstakes providers snatch that up. You might get the odd pop when it's turned up which can be startling when it happens, but small price to pay for tubes and quality.

I stream mainly from my laptop, and the only thing you may find is that for some reason mobile streaming from Spotify tends to be underpowered for some reason, although I had a similar issue streaming Spotify from my phone to a proper event hall AV system via aux cord so I wouldn't really fault the Stanmore for that.

Ultimately it is incredible sound and to be honest even my Sonos Play:1s have a hard time competing with a single Stanmore. The Sonos provide slightly crisper sound and the stereo is a clear advantage if that's important to you, but the Marshall sound is warm with deep powerful bass that easily makes up for some of the clarity loss (and I really can't stress enough that unless you're an audiophile and actually sit and compare them in an intense back and forth, you would have a hard time deciding which is better - I actually prefer the Stanmore for certain types of music).

I hope that helps and let me know if you have any questions!

 
Speaker Tubes

edited 19 Aug 2019 at 09:45 PM

Berlin Khan

asked 18 Aug 2019 at 06:38 PM

Berlin Khan
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2

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110

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Dear, 
I have a Marshall DSL40CR here with crackling/popping noise, I have already checked the tubes in a Hickok TV2C tube tester, and they are good. 
The master1 and master2 are closed. I realized that when I removed the Valve 4 the noise would stopping. So I searched around v4, and noted that the noise comes from resonance circuit, if I removing C138 the noise stopping, above this capacitor there are 105V, I swapped to 10uf/160V but the problem is the same, could you help me, please ?
Thanks & best regards. 

 

Valve Tubes

asked 30 Jul 2019 at 06:10 PM

Geovane Zimermann
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1

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170

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I know that turning a "TUBE" amp on without a speaker load on the output will damage the amp.

(the no-load condition will cause the output voltage to increase until the output tubes burn out, which can then lead to other component  damage)

 

Is this also true for a CODE 100 amp?  Is there a risk of damage to the output section, with turning the unit on without a speaker cab load connected?

Would it be safe to operate the amp with just headphones connected instead of a speaker cab?

Would it be safe to operate the amp without either a speaker cab or headphones connected?

I ask because my computer (which is a desktop) is in a different location in my house than my amp.

Doing firmware updates or testing out patches requires either moving my computer or my amp, both of which are very inconvenient.

It would be much easier if all I had to move was the head.

 

CODE Speaker Tubes Firmware

asked 09 Jul 2019 at 01:42 PM

A. Todd Henker
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1

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188

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Hello

I want to exchange valves in my Origin 20h, ordered some from Tube Amp Doctor. After I exchange them do I have to rebias it? Is there a manual for rebiasing? I wasn't able to find anything which would give me even slight bit of a hint about it .

thanks

iosman

Manual Tubes

edited 06 Aug 2019 at 07:59 AM

ios man

asked 07 Jul 2019 at 06:13 AM

ios man
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2

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146

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I have a bunch of Marshall amps and recently added a Code 100H to my collection.

I'd like to connect it to a JMD1 102, in order to use it as a valve power amp and cab for the Code as a preamp. I usually do it on my other amps by connecting the send from the "preamp" to the return of the "power amp", but in this case it didn't work, the only way to get some sound from it was connecting the headphones output to the input of the JMD1, but that's not what I expect once I have another preamp in the chain. Did anyone tried something similar?

CODE Valve

asked 02 Jul 2019 at 04:55 AM

Daniel Custodio
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1

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90

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Currently my JVM410HJS squeals periodically.  Initially this would only happen occasionally and I was still able to gig with it, but now it has become to frequent to use.  It will do this even if unplugged from a guitar and will do it no matter which channel it is on.  Channel switching does not stop it.  I am not sure where to start.  Am going to change out the tubes and reset the MIDI switch, but otherwise will have to travel a good distance to find a qualified tech.  Anyone else ever had this issue?

Tubes MIDI

asked 30 Jun 2019 at 05:21 AM

Paul Turley
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5

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201

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Ive started playing guitar again later in life after first playing at the age of 10. My skill level is probably moderate but I enjoy playing again. I don’t gig or plan to be in a band. I’m either playing at home by myself or I have a buddy that I will go play with at his house. I have a couple nice Epiphone’s and 2 Yamaha DG60 amps. Theses amps are pretty good and have allot of different adjustments for different sounds. They both have an intermittent issue where something cuts out like the gain or reverb. I’ve though about taking them to get looked at but that’s another decision other then my request. 

Lately I’ve been kicking around getting a new amp. The more research I do the more I get confused. Get another solid state amp, a modeling amp or a tube amp. I’ve never had a Marshal and out of pure envy I’d like to get a Marshall but only if it’s the right amp for me. Money isn’t a deterrent. I’ve worked my way up to looking at a Marshall combo 2x12 100 watt. JVM210C. 

The reallity is I don’t think a 100W tube amp is a smart choice for me. Currently I play my 60W no more then 50% volume. And from what I’ve been told is you need to turn up a tube amp to saturate the tubes to get the most out of the sound. I’d probably only turn a 100Watt up past 50% on rare occasions like when I’m drunk and think I sound better then I really do. 

Is there a 1x12 or 2x12 Marshall tube amp that you can switch between 50W and 100W? That might satisfy my needs? What about the JVM215C? What about the code 50?

I should note I like to play classic rock/rock and metal, Led Zeppelin, Black Sabbath, AC/DC, Kiss, Jimi Hendrix, UFO, OZZY, Pantera..... 

I want something that sounds great played quite or LOUD! I don’t want something that needs a bunch of pedals for different sounds. But I don’t want an amp that has a bunch of effects but just has that fake/cheap sound. I know I’m asking allot. I just need some good advice from someone that has been around music allot and has knowledge about amps. Then I can narrow down some choices and then go to a guitar center or somewhere  and play a couple!

Thank you in advance,

signed “confused” Jeff

CODE Tubes

asked 28 Jun 2019 at 03:12 AM

Jeff Spinabella
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1

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126

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Hey Mates,

 

Having issues with a clients amp, seems that after a retube that i did, he was playing and after about 30 min, it gradually started losing sound and then cut sound completely.  I did the re-tube myself, and biased it properly and i was able to play it for about 40 min with absolutely no issues.  List of troubleshooting steps i have done:

tried a different speaker cable

tried a different guitar cabinet

tried a different guitar and guitar cable

tried the old tubes, additionally bought a 12ax7 and tested each pre-amp tube

tried a different power source

Have tried different power tubes

have checked and replaced the fuses

 

Now this is what i am THINKING is the problem, I think it might be something with either the heater curcuit fuse, or i think it's called a BRT1 Rectifier?  I did alot of research and it seems that the people having MY issue, explain the same symptoms of what i am having.

 

Now i have to make this clear, I AM NOT A PROFESSIONAL TECH, just a guy helping bands out with tech stuff that they don't know how to do.  So any help is appreciated.

 

Thanks!

Speaker Cabinet Tubes fuse nosound

asked 27 Jun 2019 at 08:01 PM

Austin Hetrick
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0

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158

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Hi. I have bought the Marshall Code 212 cabinet with 8OHM. Now I want to buy Marshall DSL1HR tube head with 16OHM. Can I connect 16 OHM head to 8 OHM cabinet? Thanks in advance

CODE Cabinet Tubes

asked 11 Jun 2019 at 01:29 PM

Ramil Shahmarov
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0

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163

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So I've been thinking about buying a Celestion F12-X200 speaker for my code 50 and was wondering it this would work. The reason I need to know this is because even though I know you can use an 8ohm speaker on a 4ohm tube amp, I'm not sure about a digital amp. Could anyone tell me if this is possible.

CODE Speaker Tubes Code 50

asked 01 Jun 2019 at 05:01 PM

Keenan Borgerson (2)
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2

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156

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hi everyone, i have a CODE 50 and the biggest complaint i have is finding a preset that allows the amp to be "sensitive" to the controls on my guitars.

you know with any halfway decent tube amp you can ride the volume knob on the guitar to not only turn down (attenuate) the volume but actually change the tone. i know most people use what i call "help me box's" to do this, however, i never use those things. my question is, does anyone know a preset that i can program that will achieve this?

the basic sound would be any Fender or Marshall.

i look forward to anything you all have to say,

thanks,JP

CODE Presets Tubes

asked 18 May 2019 at 03:39 PM

joey pinter-bilek (1)
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1

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182

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Hey everyone,

I'm hoping someone can help me troubleshoot a new piece of gear I purchased. I recently bought a used Marshall DSL40CR that was running fine, but just tonight the High channel stopped working. Low is perfectly fine, but Highstarted having a  heavily muddied sound and now I'm hearing nothing out of it. All tubes are glowing, but I figured I'd seek out some sage advice before taking things apart and potentially making things worse.

Thanks!

Tubes

asked 06 Apr 2019 at 12:41 AM

Andrew Cassidy
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0

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164

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Hi 

I have a TSL 100 that gives low output on crunch and lead channel. (no tube problems)

I´ve seen that this problem is common. Do you have a suggestion what could be wrong?

I suspect one of the J-Fet switches are faulty but I can´t locate any faulty ones?

(I do amp service part time)

 

Regards / Lars

 

Tubes amp

asked 23 Mar 2019 at 08:03 PM

Lars Karlsson
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1

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136

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My J60 tube amp made a loud POP while jamming. All the tubes are secure and lit up, and the fuse still looks good. The amp isn’t making any sound at all though. Any suggestions on what might be the problem?

Tubes fuse sound

asked 21 Mar 2019 at 12:43 PM

Zachary Daniels
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1

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173

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Can anyone tell me the correct bias settings for a Marshall TSL602? There is conflicting info out there.

Tthe TSL range have 3 pins under an inspection cover on the back. Some people say that the bias should be set to 40mv between the middle pin and the outer (total 80mv). Others say that it should be 80mv per side.

I’ve had the amp for 18 years and always have it set just short of 80mv, but I never seem to get much life out of my valves – probably half the 1,000 hours you’d expect. And the sound always seems to lack a bit of treble. Whenever I have it serviced, it always seems to come back set at around 80mv per side but it always seems to run a bit hot to me.

 Should I be lowering the bias?

Valve settings Bias tsl602

asked 20 Mar 2019 at 11:52 AM

Phil Hitchman
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