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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

fabou13 fabou13
Published on 08/19/10 at 11:41
Best value: Excellent
JCM 900 4100

tube amp: 3 in preamp (instead of 4 for a JCM 2000 or JCM 900 SLX) and 4 power (EL 34 for mine).
Impedance selector to play 50 or 100W. Personally I prefer to leave it on 50W.

Purchased 400 secondhand €

UTILIZATION

2 channels: clean and lead A B each with 1 volume (Master), 1 win and 1 reverb
EQ common to two channels: a problem if we want a channel switcher to another, the sound is too much dispute.



SOUNDS

It is perfect for my style hard rock (ACDC, Airborne, Led Zep, ZZ Top etc..).

I use a Gibson SG or a Start 61 U.S. and two with the sound I like. All in a baffle 1936 in Marshall Celestion Vintage 30 (I did not like with the G12T-75).

29/11/2010 (after 1 year): ca does very well with G12T-75, especially 4x12 is less dry, more open.

I use only the channel B Lead. Like not at all push the channel A, it sounds too loud and clapping for my taste, so to get a crunch on channel B I drop my guitar volume knob (with the SG that sounds wonderfully well for the TDCA).

What I love about this amp is that the sound is well defined, and cuts into the mix. What is missing is a little "soft."

29/11/2010: it's actually the v30 gives this side snapping, dry ... it is sweeter with G12T-75.


OVERALL OPINION

After 10 months I use repeating and concert, I do not regret that choice at all.

Before I had a JCM 2000 TSL 60 (with 2 v30) is the sound was good, warm and mellow, but too often "fuzzy". The 2000 is missing a definition for playing power chords in the TDCA.

The pros: well-defined cuts in the mix, good value for money
the -: EQ unmanageable if we use the 2 channels (it's not my case)

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