CMA Series
Commercial Mixer/Amplifiers
Operation Manual
®
6/14/99
Biamp Systems, 10074 S.W. Arctic Drive, Beaverton, Oregon 97005 U.S.A. (503) 641-7287 an affiliate of Rauland Borg Corp.
TABLE OF CONTENTS
Front Panel Features
Rear Panel Features
Modifications
Applications
Specifications
Block Diagram
Warranty pg. 2 pg. 4 pg. 6 pg. 8 pg. 12 pg. 13
CMA Series
INTRODUCTION
The CMA Series of commercial mixer/amplifiers combines a versatile 6-input mic/line mixer with either 30, 60, 120, or 350 Watt amplification. Mixing functions include mic/line/telephone inputs, selectable automatic & manual channel muting, channel priority assignment, remote level control, tone control, a built-in compressor, an internal chime, phantom power, and extensive output patching. The amplifier includes an output transformer, and provides rated power into direct or distributed speaker systems. The CMA Series carries a five-year warranty.
CMA Series features include:
♦ integrated mixer, power amplifier, and output transformer
♦ five electronically balanced microphone/line input channels
♦ one transformer balanced microphone/line/tel input channel
♦ rear panel trim control & pad switch on each input channel
♦ +24 Volt phantom power selectable on each input channel
♦ input isolation transformer option on mic/line input channels
♦ automatic muting of selected channels (-10, -20, or -40dB)
♦ automatic muting triggered by selected "priority" channels
♦ manual muting of selected channels (-10, -20, or -40dB)
♦ manual muting triggered from remote contact closures
♦ remote control of master level via rear panel terminals
♦ integral output compressor with rear panel threshold control
♦ recessed treble & bass controls plus "loudness" & "low-cut"
♦ two insert points for signal processing and remote control
♦ two line-outs and one stack-in for system interconnections
♦ 30, 60, 120, or 350 Watts into direct or distributed systems
♦ front panel indicators for power, fault, signal, and peak
♦ internal 'pre-announcement' chime tone with level control
♦ input/output connections provided on barrier strip terminals
♦ integral security cover and removable rack-wing/handles
♦ covered by Five-Year "Gold Seal" Warranty
♦ marked, UL and C-UL (UL Canada) listed
1
FRONT PANEL FEATURES
CMA30, CMA60, & CMA120 Front Panels
1 2 3 4 5 off low cut on off on loudness contour
6 off tone control on
0 bass
+ master
0
+ treble
PRECEDENCE CMA120
Commercial Mixer Amplifier peak signal fault on power
CMA350 Front Panel
1 2 3 4 5 off low cut on off on loudness contour
6 off tone control on
0 bass
+ master
0
+ treble
PRECEDENCE CMA350
Commercial Mixer Amplifier peak signal fault power
I
O
2
FRONT PANEL FEATURES
Level (Channels 1~6): These controls adjust the amount of signal sent from the individual input channels to the mixer output.
Optimum Level setting is near the 12 o'clock position (unity gain).
Level (Master): This control adjusts the amount of signal sent from the mixer output to the amplifier input. The Master Level control is used to adjust the overall volume of the system.
Low Cut: This switch inserts a low cut filter at the amplifier input.
Loudness Contour: This switch inserts a loudness filter at the mixer output (+6dB @ 100Hz & +4dB @ 10kHz). The Loudness filter provides tonal compensation when operating with low-level music signals.
Tone Control: This switch enables the Bass & Treble controls.
Bass: This screwdriver control adjusts the low-frequencies
("Bass") at the mixer output (±10dB @ 100Hz).
Treble: This screwdriver control adjusts the high-frequencies
("Treble") at the mixer output (±10dB @ 10kHz).
Peak Indicator: This red LED flashes when signal levels at the amplifier output have reached maximum. Occasional flashes of the Peak Indicator are acceptable, however, a continuously lit LED may indicate an excessive level setting.
Signal Indicator: This yellow LED remains lit when signal is present at the amplifier output.
Fault Indicator: This red LED lights to indicate fault conditions due to overheating, DC offset voltage, or failure of low-voltage power. The Fault Indicator will light for 3-5 seconds at turn-on, and then go off if no fault is detected. Some faults (such as overheating) will correct themselves when the unit has been turned off awhile. If the Fault Indicator remains lit when the unit is turned back on, contact your local Biamp Systems dealer.
On Indicator: This green LED remains lit when AC power is applied to the unit.
Power Switch: This switch applies AC power to the unit.
3
xfmr
120watt output direct
R
E158021
LISTED 2 Z 91
COMMERCIAL
AUDIO EQUIP
C
R
6.3A - 115V
USE ONLY WITH
250V FUSE
~
115/230V AC 50/60 Hz 375 VA
3.15A -230V
REAR PANEL FEATURES
CMA30, CMA60, & CMA120 Rear Panels
BIAMP SYSTEMS an affiliate of
Rauland-Borg Corp
4 chime level com line out rec out max min
8
25V
50V
70V amp in send/return pre out compressor out threshold adjust min remote level
+10V c mute/ chime stacking in
+ auto mute max min channel 6 phantom pwr auto mute manual mute mute level
-40
-20 trim om ina max min priority on off line mic
+ channel 5 phantom pwr auto mute manual mute mute level
-40
-20 trim om ina max min priority on off line mic
+ channel 4 phantom pwr auto mute manual mute mute level
-40
-20 trim om ina max min priority on off line mic
+ channel 3 phantom pwr auto mute manual mute mute level
-40
-20 trim om ina max min priority on off line mic
+ channel 2 phantom pwr auto mute manual mute mute level
-40
-20 trim om ina max min priority on off line mic
+ channel 1 phantom pwr auto mute manual mute mute level
-40
-20 trim om ina max min priority on off line mic
+ tel
CMA350
BIAMP SYSTEMS
Portland, Oregon an affiliate of Rauland-Borg Corp.
WARNING: do not change
AC voltage switch when power is on.
6.3A - 115V
USE ONLY WITH
250V FUSE
~
115/230V AC 50/60 Hz 700 VA
3.15A -230V
R
E158021
LISTED 2 Z 91
COMMERCIAL
AUDIO EQUIP
C
R xfmr
350 watt output direct
70V 50V 25V 8 com 4
CMA350 Rear Panel chime level line out max min rec out amp in send/return compressor out threshold adjust min pre out channel 6 phantom pwr auto mute manual mute mute level
-40
-20 trim no m inal priority auto mute max min on off line mic channel 5 max phantom pwr auto mute manual mute mute level
-40
-20 trim no m inal min priority on off line mic channel 4 max phantom pwr auto mute manual mute mute level
-40
-20 trim no m inal min priority on off line mic channel 3 max phantom pwr auto mute manual mute mute level
-40
-20 trim no m inal min priority on off line mic channel 2 max phantom pwr auto mute manual mute mute level
-40
-20 trim no m inal min priority on off line mic max min stacking in channel 6 channel 5 channel 4 channel 3 channel 1 phantom pwr auto mute manual mute mute level
-40
-20 trim no m inal max min priority on off line mic tel channel 2 channel 1 mute/ chime remote level c
+10V
Power Entrance: This receptacle accepts a 3-prong AC power cord. WARNING: DO NOT REMOVE OR DEFEAT THE GROUND PRONG, AS
THIS CONSTITUTES A SHOCK HAZARD.
The removable lower portion of the receptacle holds the AC fuse. NOTE: See AC Fuse on
page 7 for replacement by qualified personnel. A chassis ground post is provided (next to the receptacle) for system grounding.
Power Selector Switch (model CMA350 only): This switch selects either 115 Volt or 230 Volt AC operation for model CMA350
(see Modifications on pg. 7). Power Selector Switches for other models are on the underside of the chassis.
Output Selector: This switch selects either direct output or transformer coupled output from the amplifier. On models CMA60,
CMA120, & CMA350 direct output is from the 4 Ω terminal. On model CMA30, direct output is from the 8 Ω terminal.
Output Terminals: These screw terminals provide connection for speaker loads (4 Ω , 8 Ω , 25V, 50V, 70V, or 100V) at the amplifier output. NOTE: 100V output is an export model option only.
WARNING: THE LOUDSPEAKER OUTPUTS POSE A RISK OF HAZARDOUS
ENERGY. LOUDSPEAKER CONNECTIONS MUST BE MADE PROPERLY.
THE OUTPUT TERMINAL COVER MUST BE INSTALLED WHEN THE DEVICE
IS ENERGIZED.
Chime Level: This control adjusts the volume level of the chime tone (see Mute/Chime on next page). To turn the chime tone off completely, set this control to the fully counter-clockwise position.
Send/Return: This 3-conductor TRS 1/4" Phone jack provides an insert point for signal processing or remote control devices. It is wired with Tip as send, Ring as return, and Sleeve as ground.
Send/Return is after Stacking In, Loudness, & Tone, but before
Compressor, Master Level, & Low Cut. Send/Return is a switching jack, which interrupts the signal flow only when a plug is inserted.
4
REAR PANEL FEATURES
Line Out: This RCA phono jack provides an unbalanced line-level output from the mixer. Line Out is after Stacking In, Loudness,
Tone, Compressor, & Master Level, but before Low Cut.
Rec Out: This RCA phono jack provides an unbalanced line-level output from the mixer. Rec Out is after Stacking In, but before
Loudness, Tone, Compressor, Master Level, & Low Cut.
Pre Out: This RCA phono jack provides an unbalanced line-level output from the mixer. Pre Out is after Stacking In, Loudness, &
Tone, but before Compressor, Master Level, & Low Cut. Pre Out and Amp In may be used together as an insert point for signal processing or remote control devices. Remove jumper before connecting devices. To connect Pre Out to both Amp In and an external device, a parallel (‘Y’) cable must be used.
Amp In: This RCA phono jack provides an unbalanced line-level input to the amplifier. Amp In is after Stacking In, Loudness, &
Tone, but before Compressor, Master Level, & Low Cut. Pre Out and Amp In may be used together as an insert point for signal processing or remote control devices. Remove jumper before connecting devices.
Compressor: This control adjusts the threshold level at which the internal compressor circuit is activated. The internal compressor has a fixed compression ratio of 4:1, and is used to reduce peaks in output signal level, as well as to moderate volume differences between loud and soft signals.
Auto Mute: This control adjusts the threshold level at which signals from "priority" channels will automatically trigger muting of selected non-priority channels (see Assignment & Priority below).
Remote Level: These two screw terminals (plus "
➽
") provide remote volume control of the master level. An internal voltage controlled amplifier (VCA) allows remote control from up to 2000 feet away, using any 5k~50k Ω linear taper potentiometer and/or switch to provide adjustment and/or muting of the master level.
Potentiometers are wired with high-side to "+10V", low-side to "
➽
", and wiper to "C". Switches simply connect (or disconnect) "+10V" to "C", and do not require a ground (‘
➽
’) connection. NOTE: The factory installed jumper (between "+10V" & "C") must be in place when a remote control is not being used.
Mute/Chime: This screw terminal (plus "
➽
") allows manual muting of any selected channels, via an external switch or contact closure
(see Assignment & Priority below). When the Chime Level control is turned up (on), a pre-announcement chime tone will also be activated by the switch or contact closure.
Stacking In: These screw terminals provide a balanced line-level input to the mix bus, for input expansion. Stacking In is before
Loudness, Tone, Compressor, Master Level, & Low Cut. For unbalanced input, wire high to (+) and ground to both (-) & (
➽
).
Assignment: These five DIP switches are used to assign specific functions to the individual channels. To assign a function, move the respective switch to the left. Phantom Pwr assigns +24 Volts
DC phantom power to the channel input, for powering condenser microphones. CAUTION: TO AVOID DAMAGE TO EQUIPMENT, ASSIGN
PHANTOM POWER ONLY ON CHANNELS WHICH ARE SELECTED FOR 'MIC'
INPUT AND WHICH REQUIRE PHANTOM POWER.
Auto Mute assigns a
(non-priority) channel to be muted whenever signal is present in any "priority" channel. Manual Mute assigns a channel to be muted whenever the Mute/Chime terminals are shorted together via a switch or contact closure. Mute Level assigns the amount of muting (-10dB, -20dB, or -40dB) which is applied to a channel, when triggered by either Auto Mute or Manual Mute. NOTE:
-10dB muting will occur when both switches are to the right.
-40dB muting will occur when both switches are to the left.
Trim: This control adjusts the input gain of the channel, to compensate for various input signal levels. Once the Line/Mic switch has been set to the proper position (see Line/Mic below), the Trim control should be adjusted so that peaks in signal level do not cause distortion at the channel input.
Priority: This switch assigns a channel to "priority". When signal is present in a "priority" channel, any (non-priority) channels which are assigned to Auto Mute will be muted by their selected amount.
NOTE: A "priority" channel cannot be auto muted by another
"priority" channel, but a "priority" channel can be manual muted.
Line/Mic: This switch selects the proper impedance and gain for either microphone or line-level input signals. Depress the switch for line-level input. Release the switch for microphone input. On
Channel 1, the Tel switch (see Tel below) must be released for the
Line/Mic switch to operate.
Tel (Channel 1 only): This switch selects the proper impedance and gain for input from 600 ohm sources. The input for Channel 1 includes an isolation transformer, which allows connection to most telephone system audio ports.
Inputs: These screw terminals provide a balanced input connection for the channel. For unbalanced input, wire high to (+) and ground to both (-) & (
➽
). The input for Channel 1 includes an isolation transformer. Input isolation transformers are optional on
Channels 2~6 (Biamp #908-0040-00).
5
MODIFICATIONS
CAUTION: THE FOLLOWING INFORMATION IS FOR USE BY QUALIFIED INSTALLATION/SERVICE PERSONNEL.
Removable Rack-Handles: The CMA Series have removable rack-handles. To remove the rack-handles: 1) Remove the two screws from the side of each rack-handle. 2) Remove the rack-handles. 3) Replace the mounting screws in the sides of the chassis.
Security Cover: The CMA Series includes a removable front panel security cover. A hole in the security cover provides access only to the power switch. To remove the security cover: 1) Using a 3mm hex wrench, loosen the two captive security cover mounting screws. 2)
Remove the security cover.
6
MODIFICATIONS
WARNING: TO REDUCE THE RISK OF SHOCK, DISCONNECT ALL POWER FROM THE UNIT BEFORE MAKING ANY INTERNAL MODIFICATIONS OR EXTERNAL
FIELD WIRING CONNECTIONS.
115V/230V AC Operation: The CMA Series may be converted to 230V operation for use in other countries. To convert to 230V operation: 1) Remove the fuse holder compartment from the lower portion of the rear panel AC Power Cord receptacle. 2) Replace the fuse in the fuse clip with the same type and appropriate value fuse (see table below). 3) Replace the fuse holder compartment.
230V fuse values
CMA30 - 1A NB 250V
CMA60 - 2A NB 250V
CMA120 - 3A NB 250V
CMA350 - 3.15A SB 250V
USE ONLY WITH
250V FUSE
4) Select the 230V position on the Power Selector Switch. The Power Selector Switch for models CMA30, CMA60, & CMA120 is recessed into the underside of the chassis, near the AC Power Cord receptacle. The Power Selector Switch for model CMA350 is instead located on the left side of the rear panel, above the AC Power Cord receptacle.
rear panel
bottom panel
115V 230V
AC Fuse: The AC Fuse is in the lower portion of the AC Power Cord receptacle. If the AC fuse should require replacement, see table below for proper value. WARNING: FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, REPLACE ONLY WITH SAME VALUE AND TYPE FUSE.
MODEL
CMA30
CMA60
CMA120
CMA350
115 VAC
2A NB
4A NB
6A NB
6.3A SB
230 VAC
1A NB
2A NB
3A NB
3.15A SB
7
APPLICATIONS
Commercial/Industrial Paging System
CMA60 xfmr
60 watt output direct
R
E158021
LISTED 2 Z 91
COMMERCIAL
AUDIO EQUIP
C
R
6.3A - 115V
3.15A -230V
USE ONLY WITH
250V FUSE
~
115/230V AC 50/60 Hz 375 VA
BIAMP SYSTEMS an affiliate of
Rauland-Borg Corp
4 chime level com line out rec out max min
8
25V
50V
70V amp in send/return pre out compressor out threshold adjust min remote level
+10V c mute/ chime stacking in
+ auto mute max min channel 6 phantom pwr auto mute manual mute mute level
-40
-20 trim om ina max min priority on off line mic
+ channel 5 phantom pwr auto mute manual mute mute level
-40
-20 trim om ina max min priority on off line mic
+ channel 4 phantom pwr auto mute manual mute mute level
-40
-20 trim om ina max min priority on off line mic
+ channel 3 phantom pwr auto mute manual mute mute level
-40
-20 trim om ina max min priority on off line mic
+ channel 2 phantom pwr auto mute manual mute mute level
-40
-20 trim om ina max min priority on off line mic
+ channel 1 phantom pwr auto mute manual mute mute level
-40
-20 trim om ina max min priority on off line mic tel
+ background music source security paging mic telephone paging line
70V distributed speaker system
This application shows a CMA60 being used in a commercial/industrial paging system. Channel #1 is set for input from the telephone paging line, and is assigned both as a priority channel and manual muting of -20dB. Channel #2 is set for input from the security paging microphone, which also has a push-to-talk switch wired to the Mute/Chime terminals of the CMA60. Channel #3 is set for input from the line-level background music source, and is assigned manual and auto muting of -20dB. Therefore, telephone paging will automatically mute only the background music, whereas, security paging will manually mute both the background music and the telephone paging. The
CMA60 is set for 'xfmr' output and is connected to a 70V distributed speaker system. WARNING: THE ABOVE DIAGRAM SHOWS THE OUTPUT
TERMINAL COVER REMOVED FOR CLARITY ONLY. THE COVER MUST BE INSTALLED WHEN THE UNIT IS ENERGIZED.
8
APPLICATIONS
MSP11
27V
~
50/60 Hz serial port
12 watts class 2 wiring link port link logic inputs output output input input
Church Sound Reinforcement System
MSP11
BIAMP SYSTEMS
Portland, Oregon an affiliate of
Rauland-Borg Corp.
MADE IN U.S.A.
CMA120 xfmr
120 watt output direct
R
E158021
LISTED 2 Z 91
COMMERCIAL
AUDIO EQUIP
C
R
6.3A - 115V
3.15A -230V
USE ONLY WITH
250V FUSE
~
115/230V AC 50/60 Hz 375 VA
BIAMP SYSTEMS an affiliate of
Rauland-Borg Corp
4 chime level com
8
25V
50V
70V line out rec out max min amp in send/return pre out compressor out threshold adjust min remote level
+10V c mute/ chime stacking in
+ auto mute max min channel 6 phantom pwr auto mute manual mute mute level
-40
-20 trim om ina max min priority on off line mic
+ channel 5 phantom pwr auto mute manual mute mute level
-40
-20 trim om ina max min priority on off line mic
+ channel 4 phantom pwr auto mute manual mute mute level
-40
-20 trim om ina max min priority on off line mic
+ channel 3 phantom pwr auto mute manual mute mute level
-40
-20 trim om ina max min priority on off line mic
+ channel 2 phantom pwr auto mute manual mute mute level
-40
-20 trim om ina max min priority on off line mic
+ channel 1 phantom pwr auto mute manual mute mute level
-40
-20 trim om ina max min priority on off line mic tel
+ auxiliary mixer tape deck choir mic choir mic wireless mic lectern mic pulpit mic two 8
Ω speaker cabinets
(4
Ω
load)
This application shows a CMA120 being used in a church sound reinforcement system. Channels #1~5 are set for input from the various microphones. Channel #6 is set for input from the tape deck (playback), which is also connected to Rec Out of the CMA120 (recording).
An ADVANTAGE ® MSP11 is inserted between Pre Out & Amp In of the CMA120, providing equalization to compensate for room acoustics, and automatic gain control for consistent output levels. If additional inputs are required, an auxiliary mixer (such as an ADVANTAGE ®
601e) may be connected to the Stacking In terminals of the CMA120. The CMA120 is set for 'direct' (4 Ω ) output and is connected (in parallel) to the two 8 Ω speaker cabinets. WARNING: THE ABOVE DIAGRAM SHOWS THE OUTPUT TERMINAL COVER REMOVED FOR CLARITY ONLY.
THE COVER MUST BE INSTALLED WHEN THE UNIT IS ENERGIZED.
9
APPLICATIONS
Retail Store Paging System
CMA30 xfmr
30 watt output direct
R
E158021
LISTED 2 Z 91
COMMERCIAL
AUDIO EQUIP
C
R
6.3A - 115V
USE ONLY WITH
250V FUSE
~
115/230V AC 50/60 Hz 375 VA
3.15A -230V
BIAMP SYSTEMS an affiliate of
Rauland-Borg Corp
8 com chime level line out
4
25V
50V
70V max min rec out amp in send/return pre out compressor out threshold adjust min remote level
+10V c mute/ chime stacking in
+ auto mute max min channel 6 phantom pwr auto mute manual mute mute level
-40
-20 trim no m inal max min priority on off line mic
+ channel 5 phantom pwr auto mute manual mute mute level
-40
-20 trim no m inal max min priority on off line mic
+ channel 4 phantom pwr auto mute manual mute mute level
-40
-20 trim no m inal max min priority on off line mic
+ channel 3 phantom pwr auto mute manual mute mute level
-40
-20 trim no m inal max min priority on off line mic
+ channel 2 phantom pwr auto mute manual mute mute level
-40
-20 trim no m inal max min priority on off line mic
+ channel 1 phantom pwr auto mute manual mute mute level
-40
-20 trim no m inal max min priority on off line mic tel
+ store distributed speaker system
RP-L2
RP-L2 store level warehouse level background music source digital message repeater telephone paging line
CMA120 xfmr
120 watt output direct
R
LISTED 2 Z 91
COMMERCIAL
AUDIO EQUIP
E158021
C
R
6.3A - 115V
USE ONLY WITH
250V FUSE
~
115/230V AC 50/60 Hz 375 VA
3.15A -230V
BIAMP SYSTEMS an affiliate of
Rauland-Borg Corp
4 com chime level line out
8
25V
50V
70V max min rec out amp in send/return pre out compressor out threshold adjust min remote level
+10V c mute/ chime stacking in
+ auto mute max min channel 6 phantom pwr auto mute manual mute mute level
-40
-20 trim no m inal max min priority on off line mic
+ channel 5 phantom pwr auto mute manual mute mute level
-40
-20 trim no m inal max min priority on off line mic
+ channel 4 phantom pwr auto mute manual mute mute level
-40
-20 trim no m inal max min priority on off line mic
+ channel 3 phantom pwr auto mute manual mute mute level
-40
-20 trim no m inal max min priority on off line mic
+ channel 2 phantom pwr auto mute manual mute mute level
-40
-20 trim no m inal max min priority on off line mic
+ channel 1 phantom pwr auto mute manual mute mute level
-40
-20 trim no m inal max min priority on off line mic tel
+ warehouse distributed speaker system warehouse paging mic
This application shows a CMA30 and a CMA120 being used in a retail store paging system. Channel #1 of the CMA30 is set for input from the telephone paging line. The telephone system also provides a paging contact closure which is wired to the Mute/Chime terminals of the
CMA30. Channel #2 of the CMA30 is set for input from the line-level digital message repeater, and is assigned both as a priority channel and manual muting of -20dB. Channel #3 of the CMA30 is set for input from the line-level background music source, and is assigned manual and auto muting of -10dB. Channel #1 of the CMA120 is set for input from the warehouse paging microphone, which also has a push-to-talk switch wired to the Mute/Chime terminals of the CMA120. Channel #6 of the CMA120 is set for input from the line-level Pre
Out of the CMA30, and is assigned manual muting of -40dB. Therefore, the digital message repeater will automatically mute only the background music (-10dB), whereas, telephone paging will manually mute both the background music (-10dB) and the digital message repeater (-20dB). These combined signals from the CMA30 are then fed to the CMA120 in the warehouse, where they are manually muted by any warehouse paging (-40dB). RP-L2 potentiometers are wired to the Remote Level terminals of both the CMA30 and CMA120, providing remote control of store and warehouse levels. The CMA30 and CMA120 are set for 'xfmr' output and are connected to 70V distributed speaker systems. WARNING: THE ABOVE DIAGRAM SHOWS THE OUTPUT TERMINAL COVER REMOVED FOR CLARITY ONLY. THE COVER
MUST BE INSTALLED WHEN THE UNIT IS ENERGIZED.
10
APPLICATIONS
Multi-Floor Office/Hospital Paging System
DA28R
27V
~
50/60 Hz
DA28R
BIAMP SYSTEMS
Portland, Oregon an affiliate of Rauland-Borg Corp.
12 watts class 2 wiring level output 8 level output 7 level output 6 level
OUTPUTS level output 5 output 4 level output 3 level output 2 level output 1
INPUTS
+10 trim pad
CH 2 CH 1
+10 trim pad input/output assignment background music to Floors #1~3 all-call paging to Floors #1~3 background music source
70V distributed speaker system
(Floor #1)
CMA60 (Floor #1)
R xfmr
60 watt output direct
E158021
LISTED 2 Z 91
COMMERCIAL
AUDIO EQUIP
C
R
6.3A - 115V
3.15A -230V
BIAMP SYSTEMS an affiliate of
Rauland-Borg Corp
4 com chime level line out
8
25V
50V
70V rec out max min amp in send/return pre out compressor out threshold adjust min remote level
+10V c mute/ chime stacking in
+ auto mute max min channel 6 phantom pwr auto mute manual mute mute -40 level -20 trim no m inal max min priority on off line mic
+
USE ONLY WITH
250V FUSE
~
115/230V AC 50/60 Hz 375 VA channel 5 phantom pwr auto mute manual mute mute -40 level -20 trim no m inal max min priority on off line mic
+ channel 4 phantom pwr auto mute manual mute mute -40 level -20 trim no m inal max min priority on off line mic
+ channel 3 phantom pwr auto mute manual mute mute -40 level -20 trim m no inal max min priority on off line mic
+ channel 2 phantom pwr auto mute manual mute mute -40 level -20 trim no m inal max min priority on off line mic
+ channel 1 phantom pwr auto mute manual mute mute -40 level -20 trim no m inal max min priority on off line mic
+ tel
Floor #1 local paging mic
70V distributed speaker system
(Floor #2)
CMA60 (Floor #2)
R xfmr
60 watt output direct
E158021
LISTED 2 Z 91
COMMERCIAL
AUDIO EQUIP
C
R
6.3A - 115V
3.15A -230V
BIAMP SYSTEMS an affiliate of
Rauland-Borg Corp
4 com chime level line out
8
25V
50V
70V rec out max min amp in send/return pre out compressor out threshold adjust min remote level
+10V c mute/ chime stacking in
+ auto mute max min channel 6 phantom pwr auto mute manual mute mute -40 level -20 trim no m inal max min priority on off line mic
+ background music channel 5 phantom pwr auto mute manual mute mute -40 level -20 trim no m inal max min priority on off line mic
+ channel 4 phantom pwr auto mute manual mute mute -40 level -20 trim no m inal max min priority on off line mic
+
USE ONLY WITH
250V FUSE
~
115/230V AC 50/60 Hz 375 VA all-call paging channel 3 phantom pwr auto mute manual mute mute -40 level -20 trim m no inal max min priority on off line mic
+ channel 2 phantom pwr auto mute manual mute mute -40 level -20 trim no m inal max min priority on off line mic
+ channel 1 phantom pwr auto mute manual mute mute -40 level -20 trim no m inal max min priority on off line mic
+ tel
Floor #2 local paging mic
70V distributed speaker system
(Floor #3)
CMA60 (Floor #3)
R xfmr
60 watt output direct
E158021
LISTED 2 Z 91
COMMERCIAL
AUDIO EQUIP
C
R
6.3A - 115V
3.15A -230V
BIAMP SYSTEMS an affiliate of
Rauland-Borg Corp
4 com chime level line out
8
25V
50V
70V rec out max min amp in send/return pre out compressor out threshold adjust min remote level
+10V c mute/ chime stacking in
+ auto mute max min channel 6 phantom pwr auto mute manual mute mute -40 level -20 trim no m inal max min priority on off line mic
+ background music channel 5 phantom pwr auto mute manual mute mute -40 level -20 trim no m inal max min priority on off line mic
+ channel 4 phantom pwr auto mute manual mute mute -40 level -20 trim no m inal max min priority on off line mic
+
USE ONLY WITH
250V FUSE
~
115/230V AC 50/60 Hz 375 VA all-call paging channel 3 phantom pwr auto mute manual mute mute -40 level -20 trim m no inal max min priority on off line mic
+ channel 2 phantom pwr auto mute manual mute mute -40 level -20 trim no m inal max min priority on off line mic
+ channel 1 phantom pwr auto mute manual mute mute -40 level -20 trim no m inal max min priority on off line mic
+ tel
Floor #3 local paging mic
This application shows three CMA60s being used in a multi-floor office/hospital paging system. An all-call paging microphone and a background music source are connected to an ADVANTAGE ® DA28R, which distributes those signals independently to the three CMA60s.
Channel #1 of each CMA60 is set for input from line-level all-call paging, and is assigned as a priority channel. Channel #2 of each CMA60 is set for input from the respective floor paging microphone, and is assigned auto muting of -40dB. The push-to-talk switch of each floor paging microphone is wired to the Mute/Chime terminals of the respective CMA60. Channel #3 of each CMA60 is set for input from linelevel background music, and is assigned manual and auto muting of -20dB. Therefore, local paging will manually mute the background music only on that floor (-20dB), whereas, all-call paging will automatically mute background music (-20dB) and local paging (-40dB) on all floors. The CMA60s are set for 'xfmr' output and are connected to 70V distributed speaker systems for each floor. WARNING: THE ABOVE
DIAGRAM SHOWS THE OUTPUT TERMINAL COVER REMOVED FOR CLARITY ONLY. THE COVER MUST BE INSTALLED WHEN THE UNIT IS ENERGIZED.
11
Output Power:
CMA 30
CMA 60
CMA 120
Power Bandwidth (THD < 0.4%): direct output transformer output
Frequency Response (+0/-1.5dB): direct output transformer output
Total Harmonic Distortion (1kHz @ rated power):
Output Regulation (no load to full load)
Equivalent Input Noise (mic in, 150 Ω termination):
Signal-to-Noise Ratio (20Hz-20kHz @ rated power): line inputs telephone inputs master level off
Compressor: attack time release time compression ratio threshold adjust range
Dimensions (all models; includes rack/handles & feet): height (two rack spaces) width depth
SPECIFICATIONS
30 Watts
60 Watts
120 Watts
20Hz~20kHz
50Hz~20kHz
20Hz~20kHz
50Hz~20kHz
< 0.2%
< 0.5dB
-123dBu
78dB
78dB
98dB
< 1mSecond
> 1 Second
4 : 1
15dB
CMA30, CMA60, & CMA120
3.68" (93.5mm)
19" (482mm)
14.33" (364mm)
Input Impedance / Sensitivity mic inputs line inputs telephone inputs amplifier input stacking input patch/return input
Output Impedance / Level: preamp output & line output record output patch/send output
Amplifier Output Impedance / Level:
CMA 30 CMA 60
4 Ω / 11V
8 Ω / 16V
20.8
Ω / 25V
83.3
Ω / 50V
4
8
Ω
Ω
10.4
41.7
/ 16V
/ 22V
Ω
Ω
/ 25V
/ 50V
163.3
Ω / 70V 81.7
Ω / 70V
333.3
Ω / 100V (export) 166.7
Ω / 100V (export)
Power Consumption (120VAC 60Hz / 240VAC 50Hz):
CMA 30
< 90W
CMA 60
< 220W
6k Ω / -77dBu (110µV)
15k Ω / -37dBu (14mV)
600 Ω / -60dBu (775µV)
10k Ω / +4dBu (1.2V)
20k Ω / -8dBu (300mV)
10k Ω / -8dBu (300mV)
200
200
50 Ω
Ω
Ω
/ +4dBu (1.2V)
/ +4dBu (1.2V)
/ -8dBu (300mV)
CMA 120
4 Ω / 22V
8 Ω / 31V
5.2
Ω / 25V
20.8
Ω / 50V
40.8
Ω / 70V
83.3
Ω / 100V (export)
CMA 120
< 375W
Weight:
CMA 30
CMA 60
CMA 120
17.64 lbs. (8kg)
22 lbs. (10kg)
26.45 lbs. (12kg)
Output Power:
Power Bandwidth (THD < 0.5%): direct output transformer output
Frequency Response (+0/-1.5dB): direct output transformer output
THD + Noise (1kHz @ rated power):
Output Regulation (no load to full load)
Equivalent Input Noise (mic in, 150 Ω termination):
Signal-to-Noise Ratio (20Hz-20kHz @ rated power): line inputs & telephone input master level off
Input Impedance / Sensitivity mic inputs line inputs telephone inputs amplifier input stacking input patch/return input
350 Watts
20Hz~20kHz
50Hz~20kHz
20Hz~20kHz
50Hz~20kHz
< 0.25%
< 0.5dB
-123dBu
78dB
98dB
6k Ω / -77dBu (110µV)
15k Ω / -37dBu (14mV)
600 Ω / -60dBu
(775µV)
10k Ω / +4dBu (1.2V)
20k Ω / -8dBu (300mV)
10k Ω / -8dBu (300mV)
CMA350
Output Impedance / Level: record output, preamp output, & line output patch/send output
Amplifier Output Impedance / Level:
200
50 Ω
Ω / +4dBu (1.2V)
/ -8dBu (300mV)
Compressor: attack time release time compression ratio threshold adjust range
Power Consumption (120/240VAC 60/50Hz):
Dimensions (includes rack/handles & feet): height (three rack spaces)
4 Ω / 37.4V
8 Ω / 53V
1.8
Ω / 25V
7.1
Ω / 50V
14 Ω / 70V (28.6
Ω / 100V export)
< 1mSecond
> 1 Second
4 : 1
15dB
< 760 Watts
5.24" (133mm) width depth
Weight:
19" (483mm)
14" (356mm)
51 lbs. (23.13kg)
12
BLOCK DIAGRAM
Channel 1
(mic/line/tel)
+
-
Channels
2 thru 6
(mic/line)
+
telephone mic/ line phtm.
power input xformer trim
CMA30, CMA60, CMA120, & CMA350
-40dB -20dB -10dB mic/ line phtm.
power input xformer
(option) trim
-40dB -20dB -10dB auto. mute man. mute auto. mute man. mute level priority level priority threshold
CMA 120 Block Diagram send/ return bass treble loudness rec out stacking input
+
amp in pre out level compressor chime threshold auto. mute mute/ chime signal peak fault remote control master level low-cut power amplifier line out
4
Ω
8
Ω
25V
50V
70V* com
+10V
C
*100V output available
(export option)
13
WARRANTY
BIAMP SYSTEMS IS PLEASED TO EXTEND THE FOLLOWING 5-YEAR
LIMITED WARRANTY TO THE ORIGINAL PURCHASER OF THE
PROFESSIONAL SOUND EQUIPMENT DESCRIBED IN THIS MANUAL.
BIAMP Systems expressly warrants this product to be free from defects in material and workmanship for a period of 5 YEARS from the date of purchase as a new product from an authorized BIAMP Systems dealer under the following conditions.
1. The Purchaser is responsible for completing and mailing to BIAMP Systems, within 10 days of purchase, the attached warranty application.
2. In the event the warranted BIAMP Systems product requires service during the warranty period, BIAMP
Systems will repair or replace, at its option, defective materials, provided you have identified yourself as the original purchaser of the product to any authorized
BIAMP Systems Service Center. Transportation and insurance charges to and from an authorized Service
Center or the BIAMP Systems factory for warranted products or components thereof to obtain repairs shall be the responsibility of the purchaser.
3. This warranty will be VOIDED if the serial number has been removed or defaced; or if the product has been subjected to accidental damage, abuse, rental usage, alterations, or attempted repair by any person not authorized by BIAMP Systems to make repairs; or if the product has been installed contrary to BIAMP
Systems's recommendations.
4. Electro-mechanical fans, electrolytic capacitors, and the normal wear and tear of appearance items such as paint, knobs, handles, and covers are not covered under this warranty.
5. BIAMP SYSTEMS SHALL NOT IN ANY EVENT BE
LIABLE FOR SPECIAL, INCIDENTAL, OR
CONSEQUENTIAL DAMAGES, INCLUDING LOST
PROFITS, LOSS OF USE, PROPERTY DAMAGE, INJURY
TO GOODWILL, OR OTHER ECONOMIC LOSS OF ANY
SORT. EXCEPT AS EXPRESSLY PROVIDED HEREIN,
BIAMP SYSTEMS DISCLAIMS ALL OTHER LIABILITY TO
PURCHASER OR ANY OTHER PERSONS ARISING OUT
OF USE OR PERFORMANCE OF THE PRODUCT,
INCLUDING LIABILITY FOR NEGLIGENCE OR STRICT
LIABILITY IN TORT.
6. THIS WARRANTY IS IN LIEU OF ALL OTHER
WARRANTIES EXPRESSED OR IMPLIED. BIAMP
SYSTEMS EXPRESSLY DISCLAIMS ALL IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS
FOR A PARTICULAR PURPOSE. THE REMEDIES SET
FORTH HEREIN SHALL BE THE PURCHASER'S SOLE
AND EXCLUSIVE REMEDIES WITH RESPECT TO ANY
DEFECTIVE PRODUCT. THE AGENTS, EMPLOYEES,
DISTRIBUTORS, AND DEALERS OF BIAMP SYSTEMS
ARE NOT AUTHORIZED TO MODIFY THIS WARRANTY
OR TO MAKE ADDITIONAL WARRANTIES BINDING ON
BIAMP SYSTEMS. ACCORDINGLY, ADDITIONAL
STATEMENTS SUCH AS DEALER ADVERTISEMENTS
OR REPRESENTATIONS DO NOT CONSTITUTE
WARRANTIES BY BIAMP SYSTEMS.
7. No action for breach of this warranty may be commenced more than one year after the expiration of this warranty.
Thank you for purchasing BIAMP SYSTEMS...
AMERICAN SOUND CRAFTSMANSHIP
Biamp Systems
10074 S.W. Arctic Drive
Beaverton, Oregon 97005
(503) 641-7287
585.8030.00
