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Marshall 4100 JCM900 Dual Reverb [1990-1999] [2003 - ? ]
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Marshall 4100 JCM900 Dual Reverb [1990-1999] [2003 - ? ]

Tube Guitar Amp Head from Marshall belonging to the JCM900 series

Thunderbolt1480 Thunderbolt1480
Published on 05/25/09 at 14:49
All t said.
the loop is very useful (not work very well as on many amp made in china!)
switch hi / low super efficient
power tubes el 34 or 5881 (6L6) as model (I have a 6L6 and EL34, so I speak both)

USE

Super easy to use, sounds are easily exploitable, just make sure the master volume aprivoiser very reactive but even low volume was sound.

SONORITS

I play hard rock and metal (70's / 80's / modern thrash genre) and unlike what some say, YES c'st possible to have a big fucking her saturates !!! Just:
1: whether the lamps are not dead or otherwise not bother to post a comment !!!
2: have good hp (personally a fact largely the case in 1936)
3: having a good scratch (for me vigier exca Di Marzio tone zone, bam pro and also with super distortion affects mapleneck / sg std / les paul std Burstbucker alnico / jackson Seymour Duncan tb4 rosewood / Charvel San Dimas ditto plus 59 handle Maple and touches everything in standard tuning either re re diese diese either with low E string pulling drope 10/46)
4: Learn to play !!! and have something to compare! (I have not bought amp poorly lamps)
For me JCM900 synonymous with precision and feeling, nothing to do with the JCM2000 and jvm, this amp is the last true that sounds like marshall marshall!
Remember that it has created and to counter the Soldano and other mesa fashion in the 90's and the permetre schreders and metaleux to stay at marshall.

Here are the sounds /
clean very good for a marshall (useful for connecting a distortion)
clean with good gain for blues, AC / DC, Led Zeppelin
od very classic rock
od with max gain good for hard rock
od tube screamer with a view equalizer and it's perfect for thrash metal (precision with harmonic = hell solo)
with serious tuning and good mics = palm mute clear and punchy; cavalcades thrash (Metallica, Megadeth ...)
The reverb is pretty cool
The equalization may seem innefficace but I find that c an advantage is not going 2:00 settle its mids for example; here it sounds now.

el 34 or 6L6?
I will say that the 6L6 are more roots than the EL34 without losing the precision with more harmonics (very hendrix crunch)
El 34 drive bottom episodes with tube screamer are more modern with a thicker grain (personal opinion) stridant least as in the treble.

Hi Mode or low?

As low sound is softer fatter less precise because less powerful (50W)
Hi are over sin and shine but it less manageable small volume, must push for a ring!

NOTICE GLOBAL

I recommend this amp to anyone who row to find a good sound with the recent stuff often too expensive, too cold; complicated and not reliable enough; if not love good grain marshall c c'st not for you !!!