Gallien-Krueger MB500 Owner's Manual - page 7
S E N D
R E T U R N
T U N E R
F T . S W I T C H
E Q
G N D
A C I N P U T
1 2 0 V / 6 0 H z
5 8 0 W
GND
LIFT
PRE
POST
F U L L P O W E R
F X
D I R E C T O U T
PAT C H B AY
L I N E O U T ( 2 )
H E A D P H O N E S ( 1 )
S P E A K E R
500 WAT TS @ 4 OHMS
CLASS 2 WIRING
1
2
2
3
4
5
6
7
8
9
1
10
11
2
3
4
5
6
7
11
8
1
MB500
MB500
7
9
10
AC Receptacle: The detachable power cord
plugs in here.
Ground Lift: This switch disconnects the
ground of the balanced, XLR output to eliminate
hum and buzz when connecting to equipment
that is running on a different ground system.
Balanced Direct Out: This electronically
balanced output allows a direct connection to a
P.A. system.
Pre/Post EQ Button: This button switches the
direct out signal to be before or after the EQ.
Foot switch Input: A foot switch is provided to
engage Boost and Master B modes.
Tuner Output: This output comes directly off of
the input stage and can be patched to a tuner
using a shielded patch cord. This output is
unaffected by the Tuning Mute Feature.
Return: This input allows the signal from
outboard effects devices to be inserted before the
boost section.
Send: This output allows signal from the preamp
to be fed to outboard effects devices from a point
after the EQ section.
Headphone/Line out: When switched, this
output allows the user to send a direct
(unbalanced) line out to devices with unbalanced
inputs such as personal multitrack recorders.
This connection requires a shielded patch cord.
Unswitched, this headphone jack can be used to
monitor your playing with headphones.
Headphone/Line out switch: This switch
toggles the output from headphone to line out.
Speaker: Power amp output to speaker cabinet.
Delivers 500w into 4 Ohm loads. Lower
impedances such as 8 Ohms or 16 Ohms and no
load are acceptable. One 4 Ohm speaker and one
8 Ohm speaker is not recommended. This unique
speaker output allows you to use a ¼” plug or the
high current, twist-lock Speakon connector.
Rear Panel Features
Safety Infor
mation
S
af
e
ty
In
fo
rm
at
io
n
Rear Panel Featur
es