Toa A-706 User manual

700 S
ERIES
MIXER /
A
MPLIFIERS :
A-706
A-712
A-724
TOA 700 SERIES MIXER/AMPLIFIERS
offer versatile features and outstand-
ing value for installed sound applica-
tions such as boardrooms, educational
facilities, houses of worship and many
others.
The 700 Series model lineup includes
the A-706 (60 W), A-712 (120 W), and
A-724 (240 W); all manufactured with
proven TOA quality and reliability.
Features include six mic/line inputs,
two auxiliary line inputs and a 900
Series module port. Each mic/line
input includes a mic trim control and
23 VDC phantom power. Speaker out-
puts consist of 70.7 V, 25 V and 4 ohm.
An auxiliary line output can be used
for recording or connection to an
external booster amplifier.
An Auto-Mute function provides
voice-activated priority override. You
can assign inputs to activate or
respond to the muting function with
rear panel DIP switches. Muting can
also be activated with an external
switch-closure.
Other features include channel and
master volume controls, bass/treble,
processor insert jacks and output level
meter. Master volume and power
on/off can also be controlled remotely.
Short-circuit and thermal protection
circuitry ensures extended operation.
Optional accessories include the MB-25B
rack-mount kit and YA-920 volume
control security knob.
The 700 Series is UL and cUL listed
with competitive pricing and a five-
year warranty.
Nine Channel Integrated Mixer/Amplifiers
for paging and background/foreground
music distribution
Proven TOA Quality and Reliability with
wide frequency response, very low noise
and distortion, and excellent output
regulation
Three Models:
A-706 (60 W)
A-712 (120 W)
A-724 (240 W)
Six Mic/Line Inputs, balanced, with mic trim,
23 VDC phantom power and removable
terminal block connector
Two Auxiliary Inputs, unbalanced, with
dual-RCA jacks for convenient connection
of stereo sources
Module Slot accepts 900 Series plug-in
modules with additional features
Transformer-Isolation for Telephone
Paging Applications (Input #1)
25 V, 70.7 V and 4 Ohm Speaker Outputs
with removable terminal block connector
Auto-Mute Priority Function assignable
via external switches
Channels 1-3 and Module
configurable as Mute Send
Channels 1-8 and Module
configurable as Mute Receive
Auto-Mute SENSE Control for adjusting
mute activation threshold
External Mute Terminals for activating
mute function with external switch-closure
Individual Channel and Master Volume
Controls
Bass/Treble Tone Controls
Output Level Meter and Power Indicator
Remote Master Volume controlled with
an external 10k ohm linear-taper potentiometer
Auxiliary Output for connecting an external
amplifier or recording device
Pre-amp. Out / Power Amp. In Insert Jacks
for connecting external signal processors
Remote AC Turn-On for activating power
with an external switch-closure
Turn-On Delay disconnects output during
power-up
Over-current and Thermal Protection Circuitry
prevents potential damage from overloads,
short-circuit and overheating
Detachable IEC-type AC Power Cord
Volume Control Security Knobs Included (4)
Optional Rack-Mount Kit, model MB-25B (2 RU)
UL / cUL Listed
Five Year Warranty
H
IGHLIGHTS
O PTIONAL A CCESSORIES
Plug-in Modules (see back page)
MB-25B Rack-mount Kit (2 RU)
PF-511 Perforated Rack Panel (1 RU)
YA-920 Volume Control Security Knob
IT-455 Input Transformer (channels 2 and 3)

700 SERIES
MIXER/AMPLIFIERS
Tel:[phone]
Fax:[phone]
www.toaelectronics.com
S PECIFICATIONS
Type Nine channel mixer/amplifier
Output Power A-706: 60 W RMS, A-712: 120 W RMS, A-724: 240 W RMS
Frequency Response 50 - 20k Hz (±3 dB)
Total Harmonic 0.5% at 1k Hz, rated output
Distortion
Inputs Input 1 - 6: Mic -70 to -50 dBV, 600 Ω/Line -10 dBV, 600 Ω
Input 1: transformer-balanced, Phoenix 3P terminal
Input 2-6: electronically-balanced, Phoenix 3P terminal
Input 7 - 8: Line -20 dBV, 10k Ω, unbalanced RCA pin jack (stereo-sum)
Module: Specifications dependent on module type
Power IN: 0 dBV, 10k Ω, unbalanced, RCA pin jack
Outputs Speaker OUT: 70.7 V line, 25 V line, and 4 - 16 Ω, Phoenix 4P terminal
Minimum Impedance:
70.7 V line: 83 Ω(A-706), 42 Ω(A-712), 21 Ω(A-724)
25 V line: 10 Ω(A-706), 5.2 Ω(A-712), 2.6 Ω(A-724)
Preamp OUT: 0 dBV, 600 Ω, unbalanced, RCA pin jack
Rec OUT: 0 dBV, 600 Ω, unbalanced, RCA pin jack
Output Regulation Less than 2 dB, no load to full load
Phantom Power 23 VDC, switchable, Inputs 1 - 6
Module Slot Card edge connector connects to audio input and output points of TOA 900 Series modules. Use of Mute-type
modules is not required in 700 Series models.
Dynamic Range Input 1 - 6: >70 dB
Input 7 - 8, Module: >80 dB
(Band Pass: 20 Hz - 20k Hz, with Tone Controls centered)
Tone Control Bass: ±10 dB at 100 Hz, Treble: ±10 dB at 10k Hz
Control Input Remote Volume: 10k Ωlinear-taper potentiometer, Phoenix terminal
Power Remote: No-voltage make contact input
Open voltage: 28 VDC (when unit power is OFF)
Short-circuit: Under 10 mA, Phoenix terminal
Mute Control: No-voltage make contact input
Open voltage: 28 VDC (when unit power is OFF)
Short-circuit: Under 10 mA, Phoenix terminal
Indicator 5-point LED output level meter, Power indicator LED
Power Source 120 VAC, 60 Hz
Power Consumption A-706: 68 W, A-712: 110 W, A-724: 215 W
(Based on UL/CSA standard)
Operating Temperature 14ºF to 104ºF (-10ºC to + 40ºC)
Finish Panel: ABS resin, black, hair line
Case: Steel plate, black
Dimensions (W x H x D) 16.8” x 4.3” x 14.68” (420 x 107.7 x 367 mm)
Weight A-706: 20.55 lbs (9.3 kg), A-712: 27.85 lbs (12.6 kg), A-724: 29.84 lbs (13.5 kg)
Accessories (included) 4 x Volume Control Security Knobs: YA-920
APPLICATIONS
Airports
Audio/Visual
Auditoriums / Theatres
Banks
Bars / Lounges / Nightclubs
Boardrooms
Business Music
Conference Facilities
Convenience Stores
Educational Facilities
Fitness Clubs / Gymnasiums
Hotels / Hospitality
Houses of Worship
Industrial / Warehouses
Museums
Music Distribution
Offices
Public Address
Restaurants
Retail Stores
Theme Parks
Training Rooms

700 SERIES
MIXER/AMPLIFIERS
Tel:[phone]
Fax:[phone]
www.toaelectronics.com
S PECIFICATIONS
-+ -+ 01010 0 010
INPUT2
TREBLE
010
BASS
INPUT1
0
INPUT4
INPUT7
INPUT3
10 010 010
INPUT5
10 0
INPUT8
INPUT6
010
MODULE
700 SERIES AMPLIFIER model A-724
MASTER
0
0 dB
10 -24
-12
-18
-6
POWER
ON
OFF
PHANTOM
PHANTOM
model A-724
TOA Corporation
OUTPUT RATED 240W
ENGINEERED IN JAPAN, ASSEMBLED IN CHINA
120V 60Hz
700 SERIES AMPLIFIER
215W
SP OUT CLASS 2 WIRING
PWR AMP IN INPUT 8 INPUT 7
OFF
ON
SENSE
MUTE
REC OUT
70V
REMOTE
VOLUME
4õ
COM 25V
HC
+
POWER
REMOTE
+
--
0
CONTROL
MUTE
MUTE ASSIGNMENT
MUTE RECEIVE (INPUT CH)
PRE AMP OUT
10
N.C.
8765
MUTE SEND (INPUT CH)
21M3 ON
ON
M4321 OFF
OFFOFF
ON
TRIM
LINE
MIC
CHE
LINE
MIC
TRIM
CHE
LINE
MICON
TRIM
CHE
PHANTOM
OFF
PHANTOMPHANTOM
OFF
ON
PHANTOM
INPUT 3
INPUT 6
MIC
MIC
CHE
MIC
TRIM
LINE
INPUT 2
INPUT 5
MIC
MIC
CHE
LINE
MIC
TRIM
INPUT 1
INPUT 4
MIC
MICON
CHE
LINE
MIC
TRIM
16.8" (420 mm)
3.5" (88.4 mm)
4.3" (107.7 mm)
14.1" (351.5 mm)
.72"
(18 mm)
13.1" (326.5 mm)
Side View
Front View
Rear View
INPUT 1
LINE: –10 dBV/600 Ω
MIC: –70 to –50 dBV/600 Ω
INPUT 2, 3
LINE: –10 dBV/600 Ω
MIC: –70 to –50 dBV/600 Ω
INPUT 4 –6
LINE: –10 dBV/600 Ω
MIC: –70 to –50 dBV/600 Ω
INPUT 7, 8
–
20 dBV/10k Ω
MODULE
–
20 dBV/10k Ω
MUTE CONTROL
POWER REMOTE
REMOTE VOLUME
+
–
120 V
VCA
TREBLE
BASS
Tone
control
Power
Amplifier
Power
remote
SA
POWER switch
Power for
control section
Power for
audio section
Thermal
sensor Fan
A-724 only
70 V
SP OUT
25 V
POWER
120 V AC
60 Hz
PT
Fuse Fuse
Output
level meter
OT
4 Ω
COM
REC OUT
0 dBV/600 Ω
PRE AMP OUT, 0 dBV/600 Ω
PWR AMP IN, 0 dBV/600 Ω
+23 VDC Phantom power
+
–
H
C
900 Series
module slot
IT
Transformer
(optional)
LINE MIC
MIC TRIM INPUT
volume MASTER volume
INPUT
volume
INPUT
volume
INPUT
volume
INPUT
volume
MUTE SENSE
Analog mute
LINE MIC
MIC TRIM
LINE MIC
MIC TRIM
Mute
Mute
Mute
Mute
Mute
MUTE
RECEIVE
D
IMENSIONAL D RAWING
B
LOCK D IAGRAM

LiteratureOrder#:L-700SERIES
Specificationssubjecttochangewithoutnotice.
©2004,TOAElectronics,Inc.
700 S ERIES
M IXER /A MPLIFIERS
TOA E LECTRONICS , I NC .
601 G ATEWAY B LVD ., S UITE 300
S
OUTH S AN F
RANCISCO , CA 94080
TEL: [phone]
FAX: [phone]
www.toaelectronics.com
Visit www.toaelectronics.com to download:
Specification Sheets
Architect and Engineering Specifications
900 Series Module Guide
Installation Manual
CAD Files
High-resolution Images
Model Description
M-01F MicrophoneInputModule,Balanced,200Ω,Lo/Hi-CutFilters,FemaleXLR
M-01M SameasM-O1FwithMaleXLR
M-01P SameasM-O1FwithPhoneJack
M-01S SameasM-O1FwithRemovableTerminalBlock
M-03P MicrophoneInputModule,HiZ,Unbalanced,50kΩ,Lo/Hi-CutFilters,PhoneJack
M-21S MicrophoneInputModule,Balanced,200Ω,Lo/Hi-CutFilters,RemoteVol.Control,ScrewTerminals
M-51F MicrophoneInputModule,Balanced,200Ω,Lo-CutFilter,VoiceGate,FemaleXLR
M-51S SameasM-51FwithRemovableTerminalBlock
M-61F MicrophoneInputModule,Balanced,200Ω,Lo/Hi-CutFilters,Compressor,FemaleXLR
M-61S SameasM-61FwithRemovableTerminalBlock
B-01F BalancedLineInputModule,10kΩTransformer,FemaleXLR
B-01S BalancedLineInputModule,10kΩTransformer,RemovableTerminalBlock
B-21S BalancedLineInputModule,10kΩTransformer,RemoteVolumeControl,ScrewTerminals
L-01F LineMatchingInputModule,600ΩTransformer,Balanced,FemaleXLR
L-01S SameasL-01FwithRemovableTerminalBlock
U-01F LineInputModule,Unbalanced,220kΩ,FemaleXLR
U-01P SameasU-01FwithPhoneJack
U-01R SameasU-01FwithRCAJack
U-01S SameasU-01FwithRemovableTerminalBlock
U-03R StereoLineInputModule,Lo/Hi-CutFilters,StereoSummingDualRCAJacks
U-03S LineInputModule,Lo/Hi-CutFilters,RemovableTerminalBlock
U-14R DualInputPriorityModulew/AGC,StereoSummingDualRCAJacks NEW!
U-21S LineInputModule,Unbalanced,220kΩ,RemoteVolumeControl,ScrewTerminals
U-61S LineInputModule,Unbalanced,220kΩ,Compressor,RemovableTerminalBlock
E-03R 900SeriesProcessorModuleforF-121C/CMSpeakers,DualRCAJacks
E-04R 900SeriesProcessorModuleforH-1Speakers,DualRCAJacks
E-05R 900SeriesProcessorModuleforH-2/H-2WPSpeakers,DualRCAJacks
E-06R 900SeriesProcessorModuleforH-3/H-3WPSpeakers,DualRCAJacks
E-07S 900SeriesLowPassFilterOutputModuleforFB-100andHB-1,RemovableTerminalBlock
S-01S SignalGeneratorModule,1kHzSineWave,RemovableTerminalBlock
S-02S SignalGeneratorModule,Buzzer/Yelp,RemovableTerminalBlock
S-04S SignalGeneratorModule,8SelectableTones,RemovableTerminalBlock
S-20S DigitalMessage/ToneModulew/USB,RemovableTerminalBlock NEW!
T-01S LineOutputModule,Balanced,600Ω,RemovableTerminalBlock
T-02S LineInputModuleforMusic-on-Hold,Unbalanced,220kΩInput,600ΩBalancedOutput,ScrewTerminals
V-01S RemoteMasterVolumeControl(VCA)Module,RemovableTerminalBlock NEW!
Special
Function Modules Line
Input Modules* Microphone
Input Modules
*ForLineInput Modules:Use“B”modulesw/transformer isolation forbalanced/unbalancedsources. Use“L”modules
onlyfor 600 ohm impedancematching. Use“U”forunbalancedsourcesw/short cables(<15 feet).
M ODULE
S ELECTION C HART