Rear Panel Features - Marshall Amplification 30th Anniversary 6912 Handbook

Rear Panel Features

The rear panel of the Anniversary amplifier is the most comprehensive that we have ever produced. In
addition to the connection and control facilities there are a number of major innovations that directly affect
the sound and performance of the amplifier. As your sound is personal to you, it is important to try the
different options for the most suitable settings for your style.
34. Footswitch Socket
35. MIDI-In Socket
36. Balanced Compensated XLR Output
37. Compensated Output Level Control
Operational Note C: Speaker Emulation
The Marshall speaker emulation circuit provides a signal for direct connection to PA or recording mixers, that retains
the true character of the amp driving a cabinet. The quality of this emulation is so high that 'miking up' cabinets should
no longer be necessary, saving you both time and money, and guaranteeing you a great direct guitar tone.
This output is active even when the power amp mute switch (item 39) is activated. Although this power amp muting
allows the amp to be used without speaker cabinets as with all valve amplifiers, it is wise to keep the cabinet connected.
38. Uncompensated Line Output
39. Uncompensated Link Selection Switch
40. Line Input
Operational Note D: Series effects option
Items 38 & 40 can also be used as a 2nd series effects loop (See operational note F). The selection switch (Item 39) will
switch the loop in or out of the circuit, but will not mute the power amp.
41. Effects Send Trim Channel 1
42. Effects Send Trim Channel 2
Operational Note E: Effects level balancing
On 41 & 42 - When setting up the effects loop, the effects processor's level controls should be set up against the lead
channel -3 and matched using switch (44), then channels 1 & 2 set up via the trim controls for an effects send balance.
If desired, more or less sound level can be set for differing amounts of effected signal.
Accepts the connecting lead from the three way channel
switching footswitch (which is included with your unit).
For connection from an external MIDI device.
Balanced output featuring Marshall line level Speaker
Emulation for accurate sound reproduction directly through
recording equipment or PA (see operational note C).
Provides volume level control of the signal from item (36).
Line Out suitable for linking to further amplifiers to extend
the system.
When pushed in, this switch mutes the internal power
amp allowing operation as a pre-amp, switching in also
activates the line input to the power amp.
Line level input jack to take an external pre-amp thus
using just the power stage of your amplifier.
Provides -10 to +4db level control of the effects send
from Channel 1 only.
Provides -10 to +4db level control of the effects send
from Channel 2.
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