WARNING!
PLEASE READ THE FOLLOWING LIST CAREFULLY
A. ALWAYS
fit a good quality mains plug conforming to the latest B.S.I. standards (UK only).
B. ALWAYS
wire the plug in accordance with the colour code attached to the mains lead (UK only).
C. DO NOT
attempt to remove the amplifier chassis. There are no user serviceable parts inside.
D. ALWAYS
have this equipment serviced or repaired by competent, qualified personnel.
E. NEVER
under any circumstances, operate the amplifier without an earth.
F. NEVER
use any amplifier in damp or wet conditions.
G. ALWAYS
ensure that the impedance of the speaker or speakers connected does not fall below the
amplifiers minimum impedance rating.
H. NEVER
connect the negative side of the Valvestate
!
loudspeaker output to earth (ground), e.g. by
connecting a D.I. box across the loudspeaker terminals.
THIS MAY SERIOUSLY DAMAGE YOUR VALVESTATE
!
AMPLIFIER, unless an earth lift switch
is used to separate it from other ground connected equipment.
I. PLEASE READ
this instruction manual carefully before switching on.
INNOVATION IN AMPLIFIER TECHNOLOGY
Marshalls' Valvestate
!
is a revolutionary concept in amplification.
Using the most up to date techniques our designers have produced a truly outstanding range of products for
every level of guitarist. From the 10 Watt practice combo to the 100 Watt stack and now with our latest
additions the 80 Watt per side Bi-Chorus combo and 100 Watt per side Bi-Chorus head, Valvestate
!
technology will give you a quality of sound that is in every sense true Marshall.
Valvestate
!
is able to do this by simulating the performance of a valve power stage. Using Bi-Polar devices
in models 8010, 8020, 8040, 8080, 8100 and 8240 and MOSFET devices in models 8280 and 8200 in a new
constant current configuration produces the type of high impedance output levels normally only delivered by a
valve amplifier. This creates speaker reaction similar to that found in valve equipment. Ringing harmonics,
rich bass response and sensitivity give Valvestate
!
amps that special Marshall ''feel" which is a joy to play!
To achieve the full dynamic potential of Valvestate
!
power, we designed pre-amp sections of incredible
versatility, with masses of gain and the widest tone control possibilities. Models 8040, 8080, 8100, 8240, 8280
and 8200 feature a Marshall ECC 83/12 AX7 valve in the pre-amp to give even greater dynamics by providing
real valve overdrive. In addition, our special "Contour" control lets you focus the overdrive from mellow
blues, right through to all out screaming metal. Also the totally analogue stereo chorus and reverb effects on
the 8240, 8280 and 8200 help create some of the biggest sounds imaginable. Whatever your style of guitar
playing, Marshall Valvestate
!
will give you the edge!
This handbook covers the Valvestate
!
guitar amp and combo range and has been compiled to help you to
get the best from your amplifier. There is no substitute for playing experience and due to the great versatility
of this range you should experiment as much as possible in order to familiarise yourself with the controls.
The Marshall Valvestate
!
range has been designed by our amplifier engineers to add new dimensions to
your guitar sound. The controls are there to be used to the full, so be extreme and enjoy getting to know
Valvestate
!
.
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