TOA A-706 Datasheet

700 S

ERIES

MIXER

/

A

MPLIFIERS

:

A-706
A-712
A-724

TOA 700 SERIES MIXER/AMPLIFIERS

offer versatile features and outstand­ing value for installed sound applica­tions 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 out­puts 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 five­year 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 Tur n-On for activating power

with an external switch-closure

 Tur n-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 Ω linear-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

–

–

D

IMENSIONAL

D

RAWING

B

LOCKDIAGRAM

120V 60Hz

215W

700 SERIES AMPLIFIER

model A-724

OUTPUT RATED 240W

TOA Corporation

ENGINEERED IN JAPAN, ASSEMBLED IN CHINA

COM 25V

SP OUT

14.1" (351.5 mm)

MUTE

CONTROL

0

+

-

HC

REC OUT

+

-

REMOTE

POWER

VOLUME

REMOTE

4õ

70V

CLASS 2 WIRING

MUTE
SENSE

10

PRE AMP OUT

PWR AMP IN INPUT 8 INPUT 7

N.C.

MUTE RECEIVE (INPUT CH)

8765

MUTE ASSIGNMENT

M4321 OFF

21M3 ON

MUTE SEND (INPUT CH)

PHANTOMPHANTOM

MIC

PHANTOM

MIC

OFF

LINE

LINE

TRIM

ON

PHANTOM

ON

MIC

MIC

CHE

INPUT 3

INPUT 6

PHANTOM

MIC

OFF

LINE

LINE

TRIM

ON

MIC

MIC

ON

CHE

MIC

OFF

TRIM

LINE

TRIM

MICON

CHE

CHE

PHANTOM

CHE

INPUT 1

INPUT 4

MIC

LINE

TRIM

OFFOFF

MICON

CHE

INPUT 2

INPUT 5

MIC
TRIM

.72"

(18 mm)

13.1" (326.5 mm)

Rear View

Side View

16.8" (420 mm)

INPUT2

INPUT1

010

0

10 010 010

TREBLE

BASS

-+ -+ 01010 0 010

INPUT3

INPUT4

INPUT7

10 0

INPUT5

INPUT8

INPUT6

0 10

MODULE

MASTER

0

0 dB

-6

-12

-18

-24

10

700 SERIES AMPLIFIER model A-724

POWER

ON

OFF

3.5" (88.4 mm)

4.3" (107.7 mm)

Front View

+23 VDC Phantom power

INPUT 1

LINE: –10 dBV/600 Ω

MIC: –70 to – 50 dBV/600

INPUT 2, 3

LINE: –10 dBV/600 Ω
MIC: –70 to – 50 dBV/600

INPUT 4 – 6

LINE: –10 dBV/600 Ω
MIC: –70 to – 50 dBV/600

INPUT 7, 8

20 dBV/10k Ω

MODULE

20 dBV/10k Ω

Ω

Ω

Ω

900 Series
module slot

MUTE CONTROL
POWER REMOTE
REMOTE VOLUME

+

–

+

–

H
C

IT

Transformer

(optional)

LINE MIC

LINE MIC

LINE MIC

MIC TRIM

MIC TRIM

MIC TRIM

MUTE SENSE

Mute

MUTE
RECEIVE

Mute

Mute

Mute

Mute

Analog mute

INPUT
volume

INPUT
volume

INPUT
volume

INPUT
volume

INPUT
volume

REC OUT

Ω

MASTER
volume

0 dBV/600

SA

VCA

TREBLE

Tone

control

BASS

Power

Amplifier

PRE AMP OUT, 0 dBV/600
PWR AMP IN, 0 dBV/600

OT

Ω

Ω

SP OUT

70 V
25 V
4 Ω
COM

A-724 only

Thermal
sensor

Power for
audio section

Power for
control section

POWER

Fan

Output
level meter

PT

Power
remote

Fuse

120 V

Fuse

120 V AC
60 Hz

POWER switch

Literature Order #:L-700SERIES

Specifications subject to change without notice.

© 2004, TOAElectronics,Inc.

700 S

ERIES

M

IXER

/A

MPLIFIERS

TOA E

LECTRONICS

, INC.

601 G

ATEWAYBLVD

., S

UITE

300

S

OUTHSAN

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 Microphone Input Module,Balanced,200 Ω,Lo/Hi-Cut Filters,Female XLR
M-01M Same as M-O1F with Male XLR
M-01P Same as M-O1F with Phone Jack
M-01S S ame as M-O1F with Removable Terminal Block
M-03P Microphone Input Module,HiZ,Unbalanced,50k Ω,Lo/Hi-Cut Filters,Phone Jack
M-21S Microphone Input Module,Balanced,200 Ω,Lo/Hi-Cut Filters,Remote V ol.Control,Screw T erminals
M-51F Microphone Input Module,Balanced,200 Ω,Lo-Cut Filter,Voice Gate,Female XLR
M-51S S ame as M-51F with Removable Terminal Block
M-61F Microphone Input Module,Balanced,200 Ω,Lo/Hi-Cut Filters,Compressor,Female XLR
M-61S S ame as M-61F with Removable Terminal Block
B-01F Balanced Line Input Module,10k ΩTransformer,Female XLR
B-01S Balanced Line Input Module, 10k ΩT ransformer,Removable Terminal Block
B-21S Balanced Line Input Module, 10k ΩT ransformer,Remote Volume Control,Screw Terminals
L-01F Line Matching Input Module,600 ΩTransformer,Balanced,Female XLR
L-01S Same as L-01F with Removable Terminal Block
U-01F Line Input Module, Unbalanced,220k Ω,Female XLR
U-01P Same as U-01F with Phone Jack
U-01R Same as U-01F with RCA Jack
U-01S Same as U-01F with Removable Terminal Block
U-03R Stereo Line Input Module,Lo/Hi-Cut Filters,Stereo Summing Dual RCA Jacks
U-03S Line Input Module, Lo/Hi-Cut Filters,Removable Terminal Block
U-14R Dual Input Priority Module w/ AGC,Stereo Summing Dual RCA Jacks NEW!
U-21S Line Input Module, Unbalanced,220k Ω,Remote Volume Control,Screw Terminals
U-61S Line Input Module, Unbalanced,220k Ω,Compressor ,Removable Terminal Block
E-03R 900 Series Processor Module for F-121C/CM Speakers,Dual RC A Jacks
E-04R 900 Series Processor Module for H-1 Speakers,Dual RC A Jacks
E-05R 900 Series Processor Module for H-2/H-2WP Speakers,Dual RC A Jacks
E-06R 900 Series Processor Module for H-3/H-3WP Speakers,Dual RC A Jacks
E-07S 900 Series Low Pass Filter Output Module for FB-100 and HB-1,Removable Terminal Block
S-01S Signal Generator Module,1 kHz Sine Wave, Removable Terminal Block
S-02S Signal Generator Module,Buzzer/Yelp,R emovable Terminal Block
S-04S Signal Generator Module,8 Selectable Tones,Removable Terminal Block
S-20S Digital Message/Tone Module w/ USB, Removable Terminal Block NEW!
T-01S Line Output Module,Balanced,600 Ω,Removable Terminal Block
T-02S Line Input Module for Music-on-Hold,Unbalanced,220k ΩInput,600 ΩBalanced Output,Screw Terminals
V-01S Remote Master Volume Control (VCA) Module,Removable Terminal Block NEW!

Special

Function Modules

Line

Input Modules*

Microphone

Input Modules

* For Line Input Modules:Use “B” modules w/ transformer isolation for balanced/unbalanced sources. Use “L”modules
only for 600 ohm impedance matching. Use “U”for unbalanced sources w/ short cables (<15 feet).

M

ODULE

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