Biamp MCA, MCA 8050, MCA 8150 Operation Manual
TM
MCA Series
Multi-Channel Amplifiers
Operation Manual
Biamp Systems, 10074 S.W. Arctic Drive, Beaverton, Oregon 97005 U.S.A. (503) 641-7287 www.biamp.com
an affiliate of Rauland Borg Corp.
blank
print update
June 17,2002
TABLE OF CONTENTS
Introduction
Safety Information
Front Panel
Rear Panel
Bridging / Remote Control
Applications
Specifications
Warranty
pg. 1
pg. 2
pg. 3
pgs. 4 & 5
pg. 6
pgs. 7 & 8
pg. 9
MCA Series
INTRODUCTION
MCA Series Multi-Channel Amplifiers provide eight channels of power
amplification. Model MCA 8050 delivers 50 watts/channel into 4 ohms. Model
MCA 8150 delivers 150 watts/channel into 4 ohms. Channels may be bridged
in pairs for higher combined wattage. Connections are provided for remote
control of channel levels & muting. MCA Series amplifiers are covered by
Biamp Systems' five-year warranty.
MCA Series features include:
♦ 8 channels of 50W (MCA 8050) or 150W (MCA 8150)
♦ channels may be bridged in pairs for combined power
♦ terminals for remote control of channel levels/muting
♦ balanced line-level inputs on plug-in barrier strips
♦ rear panel level controls & high-pass filter switches
♦ amplifier outputs on screw-terminal connectors
♦ dual-color signal/peak indicators on front & rear panels
♦ front panel indicators for amplifier temp/load faults
♦ fan cooled with complete output/speaker protection
♦ optional transformers for 25/70/100 Volt systems
♦ incorporates AES recommended grounding practices
♦ CE marked & UL / C-UL listed
♦ covered by BiampSystems' five-year warranty
1
IMPORTANT SAFETY INFORMATION
Read these instructions.
Keep these instructions.
Heed all warnings.
Follow all instructions.
Do not use this apparatus near water.
Clean only with a dry cloth.
Do not block any of the ventilation openings.
Install in accordance with the manufacturers
instructions.
WARNING - To reduce the risk of electric shock,
do not expose this apparatus to rain or moisture.
The apparatus shall not be exposed to dripping or
splashing and no objects, such as vases, shall be
placed on the apparatus.
Unplug this apparatus during lightning storms or
when unused for long periods of time.
Do not install near any heat sources such as
radiators, heat registers, stoves, or other apparatus
(including amplifiers) that produce heat.
Do not defeat the safety purpose of the polarized or
grounding-type plug. A polarized plug has two
blades with one wider than the other. A grounding
type plug has two blades and a third grounding
prong. The wide blade or the third prong are
provided for your safety. When the provided plug
does not fit into your outlet, consult an electrician for
replacement of the obsolete outlet.
Protect the power cord from being walked on or
pinched particularly at plugs, convenience
receptacles, and the point where they exit from the
apparatus.
Refer all servicing to qualified service personnel.
Servicing is required when the apparatus has been
damaged in any way, such as power-supply cord or
plug is damaged, liquid has been spilled or objects
have fallen into the apparatus, the apparatus has
been exposed to rain or moisture, does not operate
normally, or has been dropped.
2
MCA 8050 front panel
signal
temp
peak
fault
Channel 1
MCA 8150 front panel
signal
temp
peak
fault
Channel 1
signal
peak
Channel 2
signal
peak
Channel 2
temp
fault
temp
fault
signal
peak
Channel 3
signal
peak
Channel 3
temp
fault
temp
fault
signal
peak
Channel 4
signal
peak
Channel 4
temp
fault
temp
fault
FRONT PANEL
signal
temp
signal
peak
Channel 5
signal
peak
Channel 5
fault
temp
fault
peak
Channel 6
signal
peak
Channel 6
temp
fault
temp
fault
signal
peak
Channel 7
signal
peak
Channel 7
temp
fault
temp
fault
signal
temp
peak
fault on
Channel 8
signal
temp
peak
fault on
Channel 8
MCA 8050
MCA 8150
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
conditions (see Temp / Fault Indicators below).
Temp / Fault Indicators: These red LEDs indicate overtemperature and output fault conditions for each channel. When
an LED remains lit, that channel has an over-temperature
condition. When an LED is flashing, that channel has an output
fault condition. Either condition will temporarily de-activate the
channel, causing the Signal / Peak LED to turn off as well. The
channel will attempt to self-reset once the over-temperature or
output fault condition is resolved.
On Indicator: This green LED remains lit when AC power is
applied to the unit.
3
MCA 8050 115VAC rear panel
CAUTION:
Risk of fire -
F
U
E
S
S
replace fuse only
E
U
F
with same type
F 10 A H 250 V
O
U
CUS
R
LISTED
COMMERCIAL
AUDIO
EQUIPMENT
E158021
52SJ
115V
~
50/60Hz
900 Watts
8
L
signal / peak
input input
remote control
level
OFF
HPF
outputs
OFF
BRIDGE
REAR PANEL
CAUTION
RISK OF ELECTRICAL SHOCK.
DO NOT OPEN.
7
level
OFF
HPF
signal / peak
78
6
level
OFF
OFF
HPF
outputs
OFF
BRIDGE
HPF
signal / peak
input input
5
level
56
MCA 8050
signal / peak
Class 2 Wiring
BIAMP SYSTEMS
an affiliate of Rauland Borg Corp.
MADE IN U.S.A.
4
level
level
OFF
OFF
HPF
outputs
OFF
BRIDGE
HPF
signal / peak
input input
3
signal / peak
34
2
level
signal / peak
input input
outputs
1
level
OFF
OFF
OFF
HPF
HPF
BRIDGE
12
signal / peak
MCA 8050 230VAC rear panel
CAUTION:
Risk of fire -
F
U
E
S
S
replace fuse only
E
U
F
with same type
T 4 A L 250 V
O
U
CUS
R
LISTED
COMMERCIAL
AUDIO
EQUIPMENT
E158021
52SJ
230V
~
50/60Hz
900 Watts
8
L
signal / peak
input input
MCA 8150 115VAC rear panel
CAUTION:
Risk of fire -
F
U
E
S
S
replace fuse only
E
U
F
with same type
F 15 A H 250 V
O
U
CUS
R
LISTED
COMMERCIAL
AUDIO
EQUIPMENT
E158021
52SJ
115V
~
50/60Hz
1800 Watts
8
L
signal / peak
input input
remote control
level
OFF
HPF
outputs
remote control
level
OFF
HPF
outputs
OFF
BRIDGE
OFF
BRIDGE
CAUTION
RISK OF ELECTRICAL SHOCK.
DO NOT OPEN.
7
level
OFF
HPF
signal / peak
78
6
level
OFF
OFF
HPF
outputs
OFF
BRIDGE
HPF
signal / peak
input input
5
level
56
MCA 8050
signal / peak
Class 2 Wiring
BIAMP SYSTEMS
an affiliate of Rauland Borg Corp.
MADE IN U.S.A.
4
level
level
OFF
OFF
HPF
outputs
OFF
BRIDGE
HPF
signal / peak
input input
3
signal / peak
34
2
level
signal / peak
input input
outputs
1
level
OFF
OFF
OFF
HPF
HPF
BRIDGE
12
signal / peak
CAUTION
RISK OF ELECTRICAL SHOCK.
DO NOT OPEN.
7
level
OFF
HPF
signal / peak
78
6
OFF
OFF
HPF
outputs
OFF
BRIDGE
HPF
signal / peak
input input
5
level
56
MCA 8150
signal / peak
Class 2 Wiring
BIAMP SYSTEMS
an affiliate of Rauland Borg Corp.
MADE IN U.S.A.
4
levellevel
OFF
OFF
HPF
outputs
OFF
BRIDGE
HPF
signal / peak
input input
3
signal / peak
34
2
level
signal / peak
input input
outputs
1
levellevel
OFF
OFF
OFF
HPF
HPF
BRIDGE
12
signal / peak
MCA 8150 230VAC rear panel
CAUTION:
Risk of fire -
F
U
E
S
S
replace fuse only
E
U
F
with same type
T 6.3 A L 250 V
O
U
CUS
R
LISTED
COMMERCIAL
AUDIO
EQUIPMENT
E158021
52SJ
230V
~
50/60Hz
1800 Watts
8
L
signal / peak
input input
remote control
level
OFF
HPF
outputs
OFF
BRIDGE
CAUTION
RISK OF ELECTRICAL SHOCK.
DO NOT OPEN.
7
level
OFF
HPF
signal / peak
78
6
OFF
OFF
HPF
outputs
OFF
BRIDGE
HPF
signal / peak
input input
5
level
56
MCA 8150
signal / peak
Class 2 Wiring
BIAMP SYSTEMS
an affiliate of Rauland Borg Corp.
MADE IN U.S.A.
4
levellevel
OFF
OFF
HPF
outputs
OFF
BRIDGE
HPF
signal / peak
input input
3
signal / peak
34
2
level
signal / peak
input input
outputs
1
levellevel
OFF
OFF
OFF
HPF
HPF
BRIDGE
12
signal / peak
4
Loading...