900
S
ERIES
P
OWER
A
MPLIFIERS
:
P-906MK2
P-912MK2
P-924MK2
THE TOA 900 SERIES are widely
recognized as the industry standard
in installed sound system amplification. When reliability and performance are critical – such as in
paging and music distribution for
airport, hospital, and industrial
sound systems – you can count on
the TOA 900 Series to perform
consistently, day-in and day-out.
The P-906MK2 (60 W), P-912MK2
(120 W) and P-924MK2 (240 W)
Single Channel Power Amplifiers
are engineered for high performance with wide frequency
response, very low noise and distortion, and excellent output regulation. A single module slot
allows you to easily configure
custom configurations using TOA
plug-in modules with an extensive
array of features and connector
types. Outputs include transformerisolated 25 V, 70 V and 8 ohm
plus a direct low-impedance
mode if non-transformer operation
is required.
Other features include a direct
input, selectable input sensitivity,
low-cut switch and protection
circuitry.
The 900 Series Power Amplifiers
are UL and cUL Listed and carry a
five year warranty.
Modular Single Channel Power
Amplifiers for paging, background/
foreground music distribution and
music/messaging-on-hold.
Proven TOA Quality and Reliability
Engineered for High Performance
with wide frequency response, very
low noise and distortion, and excellent output regulation.
Three Models:
P-906MK2 (60 W), P-912MK2 (120 W),
P-924MK2 (240 W)
Input Module Slot accepts most TOA
plug-in modules for custom system
configurations.
25 V, 70 V and 8 Ohm Transformer-
Isolated Speaker Outputs with screw
terminal connector and protective
cover plate.
Direct Low-Impedance Output Mode
bypasses output transformer.
Direct Input for connecting an exter-
nal mixer or other source.
Selectable Input Sensitivity to accom-
modate high or low input levels.
Master Volume Control
Low Cut Switch to limit low frequency
response.
Normal, Clip, Power, Protect, and
Signal Indicators provide unit status.
Rear Panel AC Convenience Outlet for
powering external equipment
Turn-On Delay disconnects output
during power-up.
Over-current and Thermal Protection
Circuitry prevents potential damage
from overload, short-circuit, or overheating.
Volume Control Security Knob
Included
Optional Rack-Mount Kits
UL / cUL Listed
Five Year Warranty
H
IGHLIGHTS
O
PTIONAL
A
CCESSORIES
Plug-in Modules (see individual module specifications)
MB-25B Rack-mount Kit (2 RU): P-906MK2 / P-912MK2
MB-35B Rack-mount Kit (3 RU): P-924MK2
PF-511 Perforated Rack Panel (2 RU)
YA-920 Volume Control Security Knob
900 Series Module Guide available from http://www.toaelectronics.com
A
PPLICATIONS
A/V Rentals
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
Type Power amplifier
Output Power P-906MK2: 60 W RMS; P-912MK2: 120 W RMS
P-924MK2: 240 W RMS
Power Bandwidth (D) 20 - 20k Hz, 0.5% THD; (T) 50 - 20k Hz, 0.5% THD
Frequency Response (D) 20 - 20k Hz, ±1 dB; (T) 20 - 15k Hz, ±1 dB
(T) 20 - 20k Hz, +1 dB / -3 dB
Total Harmonic 0.01% at 1k Hz, rated output
Distortion
Inputs 1 modular input port
1 direct input
Use only one of direct input or modular input port.
Input Sensitivity Input port: 100 mV or 1000 mV (switchable)/10k Ω
& Impedance Direct input: 100 mV or 1000 mV (switchable)/10k Ω
Outputs Main (T): 8 Ω, 25 V & 70 V, balanced
(T)=Transformer, (D)=Direct
Main (D): 4 Ω, unbalanced
Output Regulation (D): Less than 0.5 dB, no load to full load
(1k Hz)
(T): Less than 1.0 dB, no load to full load
Dynamic Range Input level switch in 0 dBV (1000 mV) position: 108 dB
(Band Pass: 20 - 20k Hz, Input level switch in -20 dBV (100 mV) position: 90 dB
with Tone Controls centered)
Indicators Normal, Peak, Power, Protect, and Signal LEDs
Protection P-906/912MK2: Self-protection, with internal AC fuse
P-924MK2: Self-protection, with 2 AC fuses (1 internal)
and 2 DC fuses.
Power Consumption P-906MK2: 100 W; P-912MK2: 180 W; P-924MK2: 120V/3A
Temperature Range 12° F to 140° F (-10° C to +60° C)
Color Black
Dimensions
(W x H x D) P-906/912MK2: 16.5” x 3.9” x 14.1” (420 x 99.1 x 358 mm)
P-924MK2: 16.5” x 6.0” x 13.2” (420 x 151.3 x 334.2 mm)
Weight
(without modules) P-906MK2: 20.1 lbs (9.1 kg); P-912MK2: 24.0 lbs (10.9 kg)
P-924MK2: 43.0 lbs (19.5 kg)
Other Features Output connects approx. 5 seconds after switching power on.
900 SERIES
POWER AMPLIFIERS
Tel: 800-733-7088
Fax:800-733-9766
www.toaelectronics.com
S
PECIFICATIONS
Visit www.toaelectronics.com to download:
900 Series Architect and Engineering Specifications
900 Series Installation Manual
900 Series CAD Files
900 Series Module Guide
900 SERIES
POWER AMPLIFIERS
Tel: 800-733-7088
Fax:800-733-9766
www.toaelectronics.com
M
ODULE
S
ELECTION
Model Type Description
M-01F MIC Microphone Input Module, Balanced,200 Ω, Lo/Hi-Cut Filters, Female XLR
M-01M MIC Same as M-O1F with Male XLR
M-01P MIC Same as M-O1F with Phone Jack
M-01S MIC Same as M-O1F with Screw Terminals
M-03P MIC Microphone Input Module, HiZ, Unbalanced, 50k Ω, Lo/Hi-Cut Filters, Phone Jack
M-21S MIC Microphone Input Module, Balanced, 200 Ω, Lo/Hi-Cut Filters, Remote Vol. Control, Screw Terminals
M-51F MIC Microphone Input Module, Balanced, 200 Ω, Lo-Cut Filter,Voice Gate, Female XLR
M-51S MIC Same as M-51F with Screw Terminals
M-61F MIC Microphone Input Module, Balanced, 200 Ω, Lo/Hi-Cut Filters, Compressor, Female XLR
M-61S MIC Same as M-61F with Screw Terminals
B-01F LINE Balanced Line Input Module, 10k Ω Transformer,Female XLR
B-01S LINE Balanced Line Input Module,10k Ω Transformer,Screw Terminals
B-21S LINE Balanced Line Input Module,10k Ω Transformer,Remote Volume Control, Screw Terminals
L-01F LINE Line Matching Input Module, 600 Ω Transformer,Balanced, Female XLR
L-01S LINE Same as L-01F with Screw Terminals
U-01F LINE Line Input Module, Unbalanced, 220k Ω, Female XLR
U-01P LINE Same as U-01F with Phone Jack
U-01R LINE Same as U-01F with RCA Jack
U-01S LINE Same as U-01F with Screw Terminals
U-03R LINE Stereo Line Input Module, Lo/Hi-Cut Filters, Stereo Summing Dual RCA Jacks
U-03S LINE Line Input Module, Lo/Hi-Cut Filters, Screw Terminals
U-21S LINE Line Input Module, Unbalanced, 220k Ω, Remote Volume Control, Screw Terminals
U-61S LINE Line Input Module, Unbalanced, 220k Ω, Compressor ,Screw Terminals
E-03R SPECIAL FUNCTION 900 Series Processor Module for F-121C/CM Speakers, Dual RCA Jacks
E-04R SPECIAL FUNCTION 900 Series Processor Module for H-1 Speakers, Dual RCA Jacks
E-05R SPECIAL FUNCTION 900 Series Processor Module for H-2/H-2WP Speakers, Dual RCA Jacks
E-06R SPECIAL FUNCTION 900 Series Processor Module for H-3/H-3WP Speakers, Dual RCA Jacks
S-01S SPECIAL FUNCTION Signal Generator Module, 1 kHz Sine Wave, Screw Terminals
S-02S SPECIAL FUNCTION Signal Generator Module, Buzzer/Yelp, Screw Terminals
S-04S SPECIAL FUNCTION Signal Generator Module, 8 Selectable Tones,Screw Terminals
T-02S SPECIAL FUNCTION Line Input Module for Music-on-Hold,Unbalanced, 220k Ω Input, 600 Ω Balanced Output, Screw Terminals
TOA E
LECTRONICS
, INC.
601 G
ATEWAYBLVD
., S
UITE
300
S
OUTHSANFRANCISCO
, CA 94080
TEL: 800-733-7088
FAX: 800-733-9766
www.toaelectronics.com
900 S
ERIES
P
OWER
A
MPLIFIERS
900 S
ERIES
M
ODULECHART
Literature Order #: L-P900SERIES
Specifications subject to change without notice.
© 2003, TOA Electronics, Inc.
Microphone
*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).
Special
Female
Standard with high/low cut filters M-01F M-01M M-01P M-01S
Voice Gate with low cut filters M-51F M-51S
Compressor with high/low cut filters M-61F M-61S
Remote Volume Control with high/low filters M-21S
For high-Z mic. only w/ high/low cut filters M-03P
L-01F L-01S
Input Modules
Standard, no special features B-01F U-O1P U-01R B-01S
U-01F U-01S
Standard with high/low cut filters U-03R U-03S
Remote Volume Control
Compressor U-61S
Line output
Line input with Music-On-Hold (MOH) output
1 kHz Sine Wave test tone S-01S
Buzzer/Yelp signal tone S-02S
Switch-selectable tone S-04S
Line Input Modules*
Equalizer for F-121C/CM Speakers E-03R
Equalizer for H-1 Speakers E-04R
Equalizer for H-2/H-2WP Speakers E-05R
Equalizer for H-3/H-3WP Speakers
Function Modules
Male
1/4”
RCA
XLR
Phone
XLR
Jack
Jack
Dual RCA
Jacks
3 Screw
Terminals
5 Screw
Terminals
B-21S
U-21S
T-01S
T-02S
E-06R
Removable
Terminal
Block
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