900 series
MIXER POWER AMPLIFIERS
A-903MK2
A-906MK2
A-912MK2
900
SERIES
AMPL
IFIER
A
– 903
MK
2
TO
NE
DE
FEA
T
OFF
ON
LO
W C
UT
OFF
ON
SIG
NAL
NOR
MAL
PR
OTE
CT
ON
OF
F
PEA
K
POW
ER
MA
STER
INP
UT 8
INP
UT 7
INP
UT 6
INP
UT 5
INP
UT 4
INP
UT 3
INP
UT 2
TRE
BLE
INP
UT 1
BAS
S
OPERATING INSTRUCTIONS
Thank you for purchasing TOA's 900 Series
Mixer Power Amplifier.
Please carefully follow the instructions in this manual to ensure long, trouble-free use of your equipment.
This figure represents the A-903MK2.
TABLE OF CONTENTS
1. IMPORTANT SAFETY INSTRUCTIONS
..... 2
2. SAFETY PRECAUTIONS
............................ 3
3. GENERAL DESCRIPTION
.......................... 5
4. FEATURES
.................................................. 5
5. NOMENCLATURE AND FUNCTIONS
........ 6
6. INSTALLATION AND CONNECTIONS
6.1. Module Installation ................................ 8
6.2. Speaker Connections ............................ 9
6.3. Remote Control Connections .............. 11
7. RACK MOUNTING BRACKET ATTACHMENT
... 12
8. OPERATION
.............................................. 13
9. VOLUME CONTROL COVER
................... 13
10. DIMENSIONAL DIAGRAMS
10.1. A-903MK2 ......................................... 14
10.2. A-906MK2, A-912MK2 ...................... 14
11. SPECIFICATIONS
11.1. A-903MK2 ......................................... 15
11.2. A-906MK2, A-912MK2 ...................... 16