#1
Been playing guitar for a year now and I have been saving up to buy a decent tube amp and a cab. I finally got my hands on a used JCM 2000 DSL 100 and an Avatar cab loaded with 2 celestion V30 speakers. Due to my inexperience with tube I really don't know how to begin using one and I am also not sure if the JCM 2000 has a master volume or not? all the knobs are a little overwhelming. Could someone let me know how do I go about using the tube amp I got?
#2
congrats
set all the knobs to 12 noon (5) except for the volume knobs. Put that on '0'
Put your guitar volume all the way and and then slowly turn the amp volume(s) (channel and master) up - probably to around 9 o'clock or so.
Dial in to taste from there

get a picture of your new amp on here real quick or a mod will close your thread.
#3
Quote by 311ZOSOVHJH
congrats
set all the knobs to 12 noon (5) except for the volume knobs. Put that on '0'
Put your guitar volume all the way and and then slowly turn the amp volume(s) (channel and master) up - probably to around 9 o'clock or so.
Dial in to taste from there

get a picture of your new amp on here real quick or a mod will close your thread.

Thanks, Would I be able to use this at my home???
Last edited by 40xxx04 at Sep 30, 2015,
#4
awesome setup!

i don get your comment. what amps have you been using? most amps all have very similar and intuitive controls (for a guitar player)
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#5
Quote by ikey_
awesome setup!

i don get your comment. what amps have you been using? most amps all have very similar and intuitive controls (for a guitar player)

Thanks, no since I have never used a tube amp before I had some confusion as to how each channel worked and how the volume control for channel A & B worked on this particular amp as the panel was a little confusing and also I did not have a manual with me. However, I was able to find one online, so it's all clear now
#6
Well done.

You've turned up to the show a bit late though. Tubes will soon be obsolete.
These go to eleven...
Last edited by JimPlaysGuitar at Sep 30, 2015,
#7
Quote by JimPlaysGuitar
Well done.

You've turned up to the show a bit late though. Tubes will soon be obsolete.

Wat.

TS, you can use the amp anywhere. The controls are the exact same as a solid state, just make sure to leave the amp on Standby for about 30 seconds(Minimum, this is debatable) then hit the power. This is to allow the tubes to heat up before you start driving them hard with full power.
..I was watching my death.
#8
Quote by JimPlaysGuitar
Well done.

You've turned up to the show a bit late though. Tubes will soon be obsolete.


I've heard that one before

TS, congrats! That's a respectable setup for sure. Glad you got it figured out. Pretty much all there is to know is you want your cab impedance matched to your head. Other than that, just twist knobs and press switches until you make sounds you like

Also on standby switches: there are varying answers as to how long to leave it on standby, but really anything more than a minute is just silly. Or do what I do; I turn my guitar volume to zero when I first plug into my amp, and flip both the standby and power. After a minute I just roll the volume up.
I'm just a kickin' and a gougin' in the mud and the blood and the beer.
#9
Tube manufacturers have disappeared in the US.
They existed in the Soviet bloc countries because the Soviet military hadn't switched over to solid state by 1972, when Nixon opened up trade relations with China and the Soviet Union.

With the dissolution of the Soviet Union and the modernization of the military, tube demand has largely disappeared and tube manufacturers in those countries are closing at a pretty good clip. About the only reason for them to exist any more would be whatever tube guitar amps there are on the planet. But manufacturers of tube amps are *also* on the decline (Line 6, surprisingly, is the largest amp manufacturer as of a couple of years ago, on the back of well over one million of those little Spider amps sold). You can expect a tube manufacturer or two to remain in production for a few years yet, but they're LONG since obsolete (everyone else has been using solid state amplification since the late '60's).

Standby is pretty much unnecessary on any tube amp these days. Simply turning the amp on and off and ignoring the standbye switch won't affect anything.

Depending on your neighbors and housemates, you may find running an amplifier in the house needs to happen at a VERY low volume. If running an amp at higher volumes is not in the cards, you may want to get a modeler and a set of studio-class headphones. That way you can blast your ears right into tinnitus, but won't wake the baby.
Last edited by dspellman at Sep 30, 2015,
#11
Quote by timbit2006
Wat.

TS, you can use the amp anywhere. The controls are the exact same as a solid state, just make sure to leave the amp on Standby for about 30 seconds(Minimum, this is debatable) then hit the power. This is to allow the tubes to heat up before you start driving them hard with full power.

Thanks. |Like I said the panel was a little confusing as literally this is the first time I am getting to look at a real tube amp and I did not want to do something wrong and regret later.

Quote by dementiacaptain
I've heard that one before

TS, congrats! That's a respectable setup for sure. Glad you got it figured out. Pretty much all there is to know is you want your cab impedance matched to your head.


Thanks, Yes before ordering the cab I made sure that the impedance match.
#13
congrats! nice setup for sure. you could give us a few more pics

cheers:
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#14
Quote by JimPlaysGuitar
Well done.

You've turned up to the show a bit late though. Tubes will soon be obsolete.
I've been hearing that bullshit since the 80's.

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#15
I've been hearing that bullshit since the 80's.


Me too and I see more tube amps than ever...go figure...I even got rid of my solid state practice amps a few years ago, all tube now.

Marshall, Fender, Mesa, Soldano, Bogen, Matchless, Magnatone, Vox, Dumble, Peavey, Krank...yeah tube amps are dying out...right...
Hmmm...I wonder what this button does...
#16
Quote by Paleo Pete
Me too and I see more tube amps than ever...go figure...I even got rid of my solid state practice amps a few years ago, all tube now.

Marshall, Fender, Mesa, Soldano, Bogen, Matchless, Magnatone, Vox, Dumble, Peavey, Krank...yeah tube amps are dying out...right...


+1

i think there are probably a lot more tube amps around now than 10 years ago, thanks to tube amps becoming more affordable, more available and the lunchbox craze. i remember that VK's were the cheapest tube amp for a long time, as well as the peavey classic series. now there are 70 tube amps under $500 on musicians friend at this moment.
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Quote by andersondb7
alright "king of the guitar forum"


Quote by trashedlostfdup
nope i am "GOD of the guitar forum" i think that fits me better.


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youre just being a jerk man.



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2017-07-07 2017-07-07 Update and a Chat On Noise Constraints *** NEW FRIDAY 7/7
2017-04-13 RUN AWAY from COMPUTERS!!! TCE? RANT ALERT!!!
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2017-02-21 How to Hot-Rod the Hell of your Stratocaster for $50! (Tuesday 2017-2-21)
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#17
On the topic of tubes going out of manufacture: If you have a vintage amp with very specific tubes, this can be an issue. I know for sure 7027As are going to stop being made one day, I've personally been stocking up on matching quads of them.
..I was watching my death.
#18
7027A's are the same as a 6L6 so no problems there, man.
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#19
Sweet! Enjoy the beast.


Quote by dspellman
Tube manufacturers have disappeared in the US.
They existed in the Soviet bloc countries because the Soviet military hadn't switched over to solid state by 1972, when Nixon opened up trade relations with China and the Soviet Union.


With the dissolution of the Soviet Union and the modernization of the military, tube demand has largely disappeared and tube manufacturers in those countries are closing at a pretty good clip.
About the only reason for them to exist any more would be whatever tube guitar amps there are on the planet. But manufacturers of tube amps are *also* on the decline (Line 6, surprisingly, is the largest amp manufacturer as of a couple of years ago, on the back of well over one million of those little Spider amps sold). You can expect a tube manufacturer or two to remain in production for a few years yet, but they're LONG since obsolete (everyone else has been using solid state amplification since the late '60's).

Standby is pretty much unnecessary on any tube amp these days. Simply turning the amp on and off and ignoring the standbye switch won't affect anything.

Depending on your neighbors and housemates, you may find running an amplifier in the house needs to happen at a VERY low volume. If running an amp at higher volumes is not in the cards, you may want to get a modeler and a set of studio-class headphones. That way you can blast your ears right into tinnitus, but won't wake the baby.

This is why I've been stocking up.
#20
Quote by dspellman


Standby is pretty much unnecessary on any tube amp these days. Simply turning the amp on and off and ignoring the standbye switch won't affect anything. ...


And there's me modding my amps to fit standby switches because modern amps (without tube rectifiers) don't otherwise allow the tubes to warm up.

I had heard that Jimi would have a generator in the back of the van to keep his amps on standby.

Myth or not I'll carry on using my standby switches as well as setting amp volumes to zero before switching on and before turning off.
Please note: The above comments are based on my experience, and may represent my perception of that experience. This may not be accurate and, subject to the style of music you play, may be irrelevant or wrong.
#21
Quote by Cathbard
7027A's are the same as a 6L6 so no problems there, man.

The max plate voltage is different between the two of them. Personally, it's not something I want to fuck with and I'm very happy with the tone I'm getting.
..I was watching my death.
#22
A JJ 6L6GC will work just fine.
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#23
I'm pretty sure there is enough demand for tubes that someone will still manufacter them ......

Congrats on your new amp . tubes rock !!
#24
Sweet
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#25
Quote by Paleo Pete
Me too and I see more tube amps than ever...go figure...I even got rid of my solid state practice amps a few years ago, all tube now.

Marshall, Fender, Mesa, Soldano, Bogen, Matchless, Magnatone, Vox, Dumble, Peavey, Krank...yeah tube amps are dying out...right...


There is a difference between dying out and being obsolete, you know. Many things that are obsolete are still in use for many different reasons. Like vinyl records.
There's no such thing; there never was. Where I am going you cannot follow me now.
#26
And how exactly are they obsolete?
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#27
Records? Size, lack of portability (can't really play records in your car plus they are a pain to transport), colored audio quality, vulnerable to damage, difficulty sharing (can't upload your new record to Soundcloud, now can you?), degrade physically over time, comparitively expensive, etc.

Meanwhile high quality audio files can be easily stored anywhere, can be duplicated, can be uploaded, can be played in your car, have no physical size and so can be stored/transported at the size of the storage unit, cost nothing but a blank CD to distribute, everyone has the equipment to play them, easier to edit, audio quality is clearer, etc.

In fact, there is really almost no advantage of vinyl other than nostalgia, people liking to have something physical, and usually better artwork/papers than are included with a digital download.
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#28
No, tubes. How are tubes obsolete for guitar?
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#29
I don't think that tubes are necessarily obsolete yet. They will eventually though, same as everything else that used to use them. I can't say when it will be though. Maybe 5 years or maybe 50 years. It will happen eventually though.
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#30
I don't see tubes going away. What I do see happening, though is losing a bit of a dark art in new tube amp design. A person can become an engineer and be one heck of a designer, but there is an aging "tube guru" supply that know the little details that only decades of experience can teach; and unless they have apprentices, the subtle nuances that make the difference between "meh" and "wow" could be lost. Modeling is getting pretty good, and ICE power modules are gaining popularity with designers. Guitar amps will be the last to go for power sections, but bass amps are headed that way and FOH stuff has all but left tubes behind (for power). Tube preamps are still way too popular in MI and FOH to think they will be going away anytime soon. If there is a demand, someone will make them.
#31
But digital technology continues to advance at an ever expanding pace. Once digital amp modeling technology is able to accurately recreate all desirable characteristics of a tube amp to a level that is humanly indiscernable at a lower cost than tube amps, tubes will be obsolete. It will eventually happen, but nobody can say when.
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#32
Ampeg is releasing two new all tube amps within the year. Can't disagree they will eventually lose more and more ground to digital tech, but tubes will likely still be around for many many years, if even a niche like classic cars. There are new parts for cars that haven't been made for 50 years available. There are USB record players. You can still buy a new black powder rifle etc etc.

I'd sure be disappointed if I couldn't find replacements for my amp, and it was made in the 50's or 60's. NOS tubes are getting pricey, that's for sure.

#33
There may be alternatives. What's in it?

I think inertia will keep tubes around for quite a while. There are so many tube amps out there that will need tubes for a while. Let's not forget that New Sensor and JJ have always specialised in tubes for guitar amps. Why? Because there's a demand. Even when modellers do finally catch up, are we all supposed to toss away our classic amps? Why?
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#34
I'm not stressed about it, I have a stockpile of NOS tubes for it. Might get a SS rectifier eventually, but I'm good for years with what I have. It's just my living room practice amp. Sounds glorious, but at 20 watts it isn't going anywhere. 12ax7, 5y3GT, 2x 6v6GT (oh, and new caps.... )
#35
All of those should be around for ages, they're hardly obscure.
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Marshall JCM900 4102 (modded)
Marshall 18W clone
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Cathbard Amplification
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#36
But if you had a little 5 lb, 8x4x4 inch box that could nail all of your classic tube amps but with increased flexibility, that costs you in the mid three figure range, why keep all of your vintage amps? Some people might, but many would certainly get rid of them I would imagine. And certainly people would prefer to buy a little wonder box or two rather than a new tube amp.

And as the demand for tube amps drops to the point that they are all collecting dust like the Roland DM-80 on my shelf, so too will the manufacturing of tubes. Somebody will always make them, but it will be no different than how people still supply parts for Beta Max players and Nintendo Entertainment Systems.

Such is progress.
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#37
Eerm, because I already own the amps. I'm not so old that carrying around a heavy amp is any ordeal. I see no reason to dump my amps yet - and I'm sure that I'm not alone.
Gilchrist custom
Yamaha SBG500
Telecasters
Randall RM100 & RM20
Marshall JTM45 clone
Marshall JCM900 4102 (modded)
Marshall 18W clone
Fender 5F1 Champ clone
Atomic Amplifire
Marshall 1960A
Boss GT-100


Cathbard Amplification
My band
#38
Not yet, but when a smaller device can match or exceed it in every conceivable way, you might change your mind. You might not dump your amps, but perhaps you would buy the little Sonic Unit X9000 miracle processor. Once you do that, you would find yourself using your tube amps less and less.

I still use a 1980s RCA XL-100, but only because I don't care enough to replace it. I don't watch anything on it and only use it to play Tecmo Super Bowl. That's the fate of your tube amps.
There's no such thing; there never was. Where I am going you cannot follow me now.
#39
I've been hearing this bs since the 80's. SS was going to take over, now it's computer simulations. Some of us prefer the real thing, you know? Sure one day a modeler may be good enough - but even then, with the amount of tube amps out there already it should keep production going for quite some time.

Seriously, take your iPhone generation bs and fuck off. You're really starting to piss me off with your consumerist crap. Not everybody is willing to convenience themselves to death with the latest piece of crap just because it's new.
Gilchrist custom
Yamaha SBG500
Telecasters
Randall RM100 & RM20
Marshall JTM45 clone
Marshall JCM900 4102 (modded)
Marshall 18W clone
Fender 5F1 Champ clone
Atomic Amplifire
Marshall 1960A
Boss GT-100


Cathbard Amplification
My band
#40
Quote by Cathbard
Eerm, because I already own the amps. I'm not so old that carrying around a heavy amp is any ordeal. I see no reason to dump my amps yet - and I'm sure that I'm not alone.

Ogonia, I'm pretty sure Cathbard is not alone. I will NEVER use a digital modeling amp as my main amp, maybe for bedroom headphone practice, sure but y'know, I like my individuality as a guitarist and gear user.
..I was watching my death.