#1
So, I'm planning on upgrading from my Vs100 to a JCM 900. I mostly play thrash metal, and Weezer-esque music. So I believe the JCM will give me the tone I'm looking. I've been browsing ebay/craigslist and have found heads for around $600-700, but I was wondering if there is some specif model I should be looking for? Like 2500 vs 4101. I don't know if it indicates the types of tubes used, but some info would be appreciated.

Thank you.
#2
Quote by kimowesome
So, I'm planning on upgrading from my Vs100 to a JCM 900. I mostly play thrash metal, and Weezer-esque music. So I believe the JCM will give me the tone I'm looking. I've been browsing ebay/craigslist and have found heads for around $600-700, but I was wondering if there is some specif model I should be looking for? Like 2500 vs 4101. I don't know if it indicates the types of tubes used, but some info would be appreciated.

Thank you.


JCM-900 SLX is the one.
Bass Gear:

Mensinger: Speesy
Fender Precision 1989 (CIJ Rosewood)
Fender Steve Harris (CIJ)
Lakland J Sonic 5
Epiphone Explorer
Maruszczyk (custom) Jake

Ashdown CTM 100
#3
Yeah the SLX is the meanest. They came in 50 (2500) and 100 (2100) watts, the early ones had EL34 tubes being replaced later by 5881s. They are single channel, so if you need a clean channel I'd skip it, but for dirty tones it is one of my favorite amps that ive owned. Absolutely monstrous high gain sound.

The 4100 is one of the Dual Reverb models, which have two channels. It is my opinion (and the opinion of many here) that the distortion isn't as good as the SLX or the Mark 3 (another single channel model), mostly due to solid state clipping components in the signal path. The components can be removed to make the amp a lot better, but I still prefer the SLX.
I'm just a kickin' and a gougin' in the mud and the blood and the beer.
#4
The SLX is the only one with 100% tube distortion.

All the other ones have clipping diodes.
You can remove them but if you'd do such thing you might as well get yourself an SLX.

The diodes should give the thing a more trebly/brittle/high/harsh/edgy sound.
Generally conceived as bad, though you might as well like it.
If you can't try any go for the SLX to be sure.
Name's Luca.

Quote by OliOsbourne
I don't know anything about this topic, but I just clicked on this thread because of your username :O
Quote by Cajundaddy
Clue: amplifiers amplify so don't turn it on if you need quiet.
Quote by chrismendiola
I guess spambots are now capable of reading minds.
#5
Yea, the 4100 seems to be the one I want, as I want a dual channel amp. I enjoy my cleans as much as my distortion. Now just to scan the internet for one...
#6
In that case, consider looking into removing or shorting the clipping diodes. The sound does improve a lot.
I'm just a kickin' and a gougin' in the mud and the blood and the beer.
#7
It's channel 2 that's the problem on the Dual Reverb. On that channel you don't just remove the diodes (its actually a bridge rectifier and a diode), you have to replace them with a resistor.
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
#8
Or just get a JCM2000 DSL 100 which is a much better 2 channel amp than the DR and it needs no mods to sound great. They run $500-$700 used and are available as a 100 or 50 watt head
2002 PRS CE22
2013 G&L ASAT Deluxe
2009 Epiphone G-400 (SH-4)
Marshall JCM2000 DSL100
Krank 1980 Jr 20watt
Krank Rev 4x12 (eminence V12)
GFS Greenie/Digitech Bad Monkey
Morley Bad Horsie 2
MXR Smart Gate
#9
Agreed
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
#10
Quote by Robbgnarly
Or just get a JCM2000 DSL 100 which is a much better 2 channel amp than the DR and it needs no mods to sound great. They run $500-$700 used and are available as a 100 or 50 watt head


Best option
I'm just a kickin' and a gougin' in the mud and the blood and the beer.
#11
^ yep and everyone knows the DSL should have been the 2 ch 900. Don't get me wrong the SL-X is awesome, but it is a 1 trick pony if you need more than a good OD sound it just will not do
2002 PRS CE22
2013 G&L ASAT Deluxe
2009 Epiphone G-400 (SH-4)
Marshall JCM2000 DSL100
Krank 1980 Jr 20watt
Krank Rev 4x12 (eminence V12)
GFS Greenie/Digitech Bad Monkey
Morley Bad Horsie 2
MXR Smart Gate
#12
A small thread hijack question. How good is a modded (diode stripped) JCM900 DR against a JCM2000 DSL? For a metal player like me that is. Just wondering, in case I spot a Dual Reverb for cheap or something.

ESP LTD F-50 + Tonezone
Cort EVL-Z4 + X2N
Cort EVL-K47B

Marshall Valvestate 8100
Randall RG1503
Bugera 333
Peavey Rockmaster preamp

Line6 Pod X3
#13
Quote by MaaZeus
A small thread hijack question. How good is a modded (diode stripped) JCM900 DR against a JCM2000 DSL? For a metal player like me that is. Just wondering, in case I spot a Dual Reverb for cheap or something.

IMO the DSL has a bit more gain and a cleaner clean channel. The DR has some clipping that is added on the clean channel, while the DSL is an all tube signal path on both channels.

But a Stock 900 DR can do 90's punk with out any mods and it sounds good doing it. The DSL is IMO better at everything than a 900 DR can be.

JCM900 and JCM2000 are typically in the same price range used
2002 PRS CE22
2013 G&L ASAT Deluxe
2009 Epiphone G-400 (SH-4)
Marshall JCM2000 DSL100
Krank 1980 Jr 20watt
Krank Rev 4x12 (eminence V12)
GFS Greenie/Digitech Bad Monkey
Morley Bad Horsie 2
MXR Smart Gate
Last edited by Robbgnarly at Sep 23, 2014,
#14
Quote by Robbgnarly
IMO the DSL has a bit more gain and a cleaner clean channel. The DR has some clipping that is added on the clean channel, while the DSL is an all tube signal path on both channels.

But a Stock 900 DR can do 90's punk with out any mods and it sounds good doing it. The DSL is IMO better at everything than a 900 DR can be.

JCM900 and JCM2000 are typically in the same price range used



Thanks.

ESP LTD F-50 + Tonezone
Cort EVL-Z4 + X2N
Cort EVL-K47B

Marshall Valvestate 8100
Randall RG1503
Bugera 333
Peavey Rockmaster preamp

Line6 Pod X3