Avt275 Rear Panel Features - Marshall Amplification AVT275 User Manual

AVT150 & AVT150H Rear Panel Features
FX Loop
As already mentioned, the AVT150 and
AVT150H both boast a Mono Parallel FX loop
for connection with external effects units. In
addition to the FX Mix controls on the front
panel (see 'Front Panel Features', point 22) this
FX loop comprises of an FX Send jack, an FX
Return jack and an FX level control button.
6 FX Return
For connection to the output of your
external effects device.
7 FX Level
This should be set to match the level of
the processor being used (generally -10dB for
a stomp box, + 4dB for a professional, rack
unit).

AVT275 Rear Panel Features

1 Mains Input Connector
Your AVT is provided with a detachable
mains (power) lead which is connected here.
The specific mains input voltage rating that
your amplifier has been built for is shown on
the back panel. Before connecting for the first
time, please ensure that your electricity supply
is compatible with your amplifier. If you have
any doubt, please seek advice from a qualified
person. Your Marshall dealer will help in this
respect.
2 Loudspeaker Jack Sockets
These connect the internal loudspeakers
to the stereo power amplifier outputs.
!
WARNING:
Always provide both with a load equal to, or
greater than 8 Ohms.
8 FX Send
For connection to the input of the external
device being used.
FX Loop Hints:
a) Always use high quality, shielded patch
cables.
b) If the processor being used has an
input level control, ensure it is set correctly.
c) Time based effects (delays & reverbs)
and modulation effects (chorus, flange, phase,
etc.) are ideal for use in a Parallel FX loop.
d) Certain stomp box effects such as Wah,
distortion, overdrive and fuzz were designed
specifically for use in front of the amp and
sound best when used that way. This said,
tonal beauty is in the ears of the beholder so, if
such a pedal sounds great to you when used in
an FX loop then go for it! Sometimes, there are
no rules...
3 Footswitch
For connection of the supplied stage foot
controller (PEDL-00031). This sturdy 6 way,
Marshall footswitch allows instant selection of
the 4 channels, plus the two DFX modes. It
also features LEDs to indicate status.
4 Headphones
The headphones output is fully emulated
using an improved version of the circuitry found
on the industry standard JMP-1. Turning the
Master Volume (20) to zero will provide silent
practice.
12
AVT275 Rear Panel Features
5 Emulated Line Outputs (L, R)
This pair of stereo jack sockets carries a
specially treated output signal from your AVT
that accurately emulates the sonic signature of
a Marshall stereo 4x12 cabinet. This unerringly
accurate emulation circuitry is Marshall's most
advanced to date and was developed via
countless hours of technical research, playing,
listening and fine-tuning. This output can be
used in both live performance and recording
situations to achieve authentic guitar amp
tones, without having to use a microphone.
Turn down the Master Volume (20) for silent
recording.
FX Loop
As previously mentioned, the AVT275
boasts a Parallel FX loop for connection with
external effects units. In addition to the FX Mix
controls on the front panel (see 'Front Panel
Features', point 22) this FX loop comprises of
an FX Send jack, two FX Return jacks, Left &
Right, and an FX level control button.
6 FX Return Left & Right
For connection with the stereo output of
your external effects device - left goes to left
and, wait for it, right goes to right.
Note:
when using a mono output device use
the Right (R) FX return as indicated.
7 FX Level
This should be set to match the level of
the processor being used (-10dB for a stomp
box, + 4dB for a professional, rack unit).
8 FX Send
For connection with the input of the
external device being used.
FX Loop Hints:
a) Always use high quality, shielded patch
cables.
b) If the processor being used has an
input level control, ensure it is set correctly.
c) Time based effects (delays & reverbs)
and modulation effects (chorus, flange, phase,
etc.) are ideal for use in a Parallel FX loop.
Certain stomp box effects such as Wah,
distortion, overdrive and fuzz were designed
specifically for use in front of the amp and
sound best when used that way. This said,
tonal beauty is in the ears of the beholder so, if
such a pedal sounds great to you when used in
an FX loop then go for it! Sometimes, there are
no rules...
13