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The D.I. Output is via an XLR type connector
which allows this system to be run into either
(a) a line level balanced input (b) a line level
unbalanced input or (c) a low level
unbalanced input.
Please Note
Refer to the JTM XLR Out diagrams
(Below) for correct connections.
8) Pre/Post Switch
Allows Line Out selection between a speaker
Emulated signal (pre the power amp) and
non-emulated (post the power amp).
9) Presence Control
This Master Presence control adjusts the
amount of top end frequencies in the overall
tone - adding crispness and bite.
10) Speaker Output
On combo formats of the JTM 60 this jack is for
connection to the internal 16 Ohm speaker. On
the JTM 600 Head this socket is for connection
to an external speaker cabinet, such as the
purpose built JTM C410 compact 4x10" cabinet.
3
3
A
2
2
1
1
2 Core Screened Balanced Mic Lead
3
3
NC
B
2
2
1
1
Unbalanced XLR to Jack Screened Lead
3
3
C
2
2
NC
1
1
Unbalanced XLR to Jack Screened Lead
11) Speaker Output
For connection to an external 16 Ohm
speaker (The Marshall JTM C12 1x12" and
JTM C212 2x12" cabinet are designed for use
with JTM 60 combos).
On the JTM 600 head this output could drive
a second JTM C40 cabinet.
Note
The JTM 60 combos and head will deliver 60
Watts into either one or two 16 Ohm
speakers, ie. 16 or 8 Ohm total impedance.
The unit should not be driven into a load of
less than 8 Ohms.
If you unplug the internal loudspeaker in a
JTM 60 combo it is possible to connect a
single 8 Ohm cabinet to the extension
Speaker Output only. However, when the
internal speaker is connected only a 16 Ohm
extension cabinet may be used.
It is important to follow these instructions as
failure to do so may lead to the amp running
into the wrong impedance, which will
ultimately cause damage.
3
2
1
Jack Plug
Jack Plug
6
3
XLR Channel Input
2
On Mixer
(Note: Line Level-
1
Approx OdBV)
Line Level Jack Input On Mixer Etc.
Low Level Jack Input On Mixer (ie
Mic Input)
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