Manual
6
REAR PANEL
Input
These plug-in barrier strips provide the balanced line-level inputs to the channels. For balanced
connection, wire high (+), low (-), and ground ( ). For unbalanced connection, wire high (+) and
ground to both ( ) & (-).
NOTE: When using a pair of channels in ‘bridged’ mode (see Bridge below), input signal must be
connected to the odd numbered channel.
Level
These screw-driver adjustable controls determine the level of input signals allowed into the
channels. Level provides a gain range from ‘off’ (min.) to ‘unity’ (max.). The Level control is
factory set for -24dB of gain, which will produce maximum output power with input signal peaks of
+24dBu. For best performance, rst adjust the source signals for optimum (maximum) levels, then
adjust the MCA Series Level controls for the desired volume.
Signal / Peak Indicators
These 2-color LEDs indicate the signal level for each channel. When an LED is green, that channel
has signal (above -30dB). When an LED is red, that channel signal is clipping (max. power).
CAUTION: Signal levels should be adjusted to avoid clipping. Clipping can cause severe distortion,
over-temperature conditions, and even loudspeaker damage.
NOTE: Signal / Peak indicators will turn off during Temp / Fault condition (see Temp / Fault
Indicators on pg. 5).
F
U
S
E
F
U
S
E
O
2
1
12
outputs
level
signal / peak
signal / peak
level
tupnitupni
4
3
34
outputs
level
signal / peak
signal / peak
level
tupnitupni
6
5
Class 2 Wiring
56
outputs
level
signal / peak
signal / peak
level
tupnitupni
8
7
78
outputs
level
CAUTION:
Risk of fire -
replace fuse only
with same type
115V: F 10 A H 250 V
230V: T 4 A L 250 V
signal / peak
signal / peak
level
input input
MCA 8050
HPF
HPF
OFF
OFF
OFF
BRIDGE
HPF
HPF
OFF
OFF
OFF
BRIDGE
HPF
HPF
OFF
OFF
OFF
BRIDGE
HPF
HPF
OFF
OFF
OFF
BRIDGE
CAUTION
RISK OF ELECTRICAL SHOCK.
DO NOT OPEN.
52SJ
U
L
R
LISTED
C US
BIAMP SYSTEMS
Designed in Oregon, U.S.A.
Assembled in India
~
115/230VAC 50-60Hz 900 Watts
115
F
U
S
E
F
U
S
E
O
level
signal / peak
signal / peak
levellevel
signal / peak
signal / peak
levellevel
signal / peak
signal / peak
levellevel
signal / peak
signal / peak
level
HPF
HPF
OFF
OFF
OFF
HPF
HPF
OFF
OFF
OFF
HPF
HPF
OFF
OFF
OFF
HPF
HPF
OFF
OFF
OFF
BRIDGE
BRIDGE
BRIDGE
BRIDGE
12
outputs
34
outputs
56
outputs
78
outputs
2
1
tupnitupni
4
3
tupnitupni
6
5
tupnitupni
8
7
tupnitupni
MCA 8150
CAUTION
RISK OF ELECTRICAL SHOCK.
DO NOT OPEN.
Class 2 Wiring
BIAMP SYSTEMS
De signed in Or egon, U.S.A.
Asse mb led i n India
CAUTION:
Risk of fire -
replace fuse only
with same type
115V: F 15 A H 250 V
230V: T 6.3 A L 250 V
52SJ
U
L
R
LISTED
C US
~
115/230VAC 50-60Hz 1800 Watts
115
MCA 8050 Rear Panel
MCA 8150 Rear Panel