3
Using the JTM 30
The JTM 30 is easily capable of
producing a wide range of useable
quality tones, from glassy vintage
clean, Bluesbreaker type singing
lead and crunchy chord work to full
blown modern high gain crush.
What’s more the controls are
simple and intuitive to use.
While one should always bear in
mind that taste in tone is a very
subjective matter here follows a
few simple suggestions for getting
some great sounds from your
JTM 30.
Clean:
Make sure you select the
Normal channel on the JTM 30.
This is indicated by the green
L.E.D. The strength and height of
your pick-ups will have a great
influence on the level you should
set the volume on this channel
before overdrive sets in. Generally
speaking the volume control
should be set below half way for
totally clean sounds.
Vintage Overdrive:
Switch to the
Boost channel which is indicated
by the Red L.E.D. Again pickups
will obviously influence settings
but you will probably find that gain
settings of around 5 or 6 are quite
adequate, the key however is to
increase the master volume level.
As our vintage amps didn’t really
have a lot of pre-amp gain
guitarists used to crank the volume
up to be heard which resulted in
the natural classic Marshall
overdrive roar.
Alternatively the clean Channel
with its volume on maximum gives
a very satisfying vintage type
overdrive.
As far as tone settings go we
would suggest that you start with
the tone controls set at about 5 and
then adjust to taste from there.
Modern Hi-Gain:
Switch to the
Boost channel indicated by the Red
L.E.D.
Turn the gain up to full and set the
volume for the desired level. Tone
controls are set to taste, though
probably with the Middle control
lower than the Bass and Treble
controls.
The best advice we could really
offer is to simply experiment and
above all enjoy the pure valve tone
of your Marshall JTM 30.
Front Panel Functions.
1) Footswitch Jack
Jack socket for connection of P801
Footpedal for channel switching.
2) Push Channel Switch
Push switch for panel switching of the
channel. The Push Switch is inoperative
when the Footswitch is connected.
3) Input Jack
Jack socket for the input of the guitar.
4) Volume Control
Controls the Volume of the Normal channel.
5) L.E.D.
Indicates channel. Green-Normal
Red-Boost.
6) Gain Control
Controls the amount of Gain on the Boost
channel.
7) Volume Control
Controls the Volume of the Boost channel.
8) Bass Control
Dictates the amount of low frequency in the
overall tone.
9) Middle Control
Controls the middle frequencies.
