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Com-Tech Power Amplifiers
Reference Manual
ILLUSTRATIONS
1.1
Com-Tech Amplifiers (120 VAC, 60 Hz Units) ............................. 8
2.1
Front Facilities ......................................................................... 10
2.2
Rear Facilities ......................................................................... 11
3.1
Mounting Dimensions .............................................................. 12
3.2
Top View of a Rack-Mounted Unit ............................................ 13
3.3
Extra Cooling with a Rack-Mounted Blower ............................. 14
3.4
Wiring for Dual 8/4 Ohm Mode ................................................ 15
3.5
Wiring for Dual 70 Volt Mode ................................................... 16
3.6
Wiring for Bridge-Mono 70 Volt Mode (140 Volt Output) ........... 17
3.7
Wiring for Parallel-Mono 70 Volt, Bridge-Mono 8/4 Ohm
and Parallel-Mono 8/4 Ohm Modes ......................................... 18
3.8
Balanced Input Wiring ............................................................. 19
3.9
Unbalanced Input Wiring ......................................................... 19
3.10 Infrasonic Filter Capacitor Values ............................................ 20
3.11 Unbalanced RFI Filters ............................................................ 20
3.12 Balanced RFI Filters ................................................................ 20
3.13 Connecting the RSVP Module ................................................. 21
3.14 Wire Size Nomograph ............................................................. 22
3.15 Inductive Load (Transformer) Network ..................................... 23
3.16 Loudspeaker Fuse Nomograph ............................................... 24
4.1
Indicators ................................................................................ 25
4.2
ODEP, IOC and Signal Presence Indicator States .................... 26
4.3
Input Sensitivity Switch ............................................................ 28
5.1
Circuit Block Diagram ............................................................. 30
6.1
Com-Tech 210 Minimum Power Matrix ..................................... 35
6.2
Com-Tech 410 Minimum Power Matrix ..................................... 36
6.3
Com-Tech 810 Minimum Power Matrix ..................................... 37
6.4
Com-Tech 1610 Minimum Power Matrix ................................... 38
6.5
Com-Tech 210 Maximum Power Matrix .................................... 39
6.6
Com-Tech 410 Maximum Power Matrix .................................... 40
6.7
Com-Tech 810 Maximum Power Matrix .................................... 41
6.8
Com-Tech 1610 Maximum Power Matrix .................................. 42
6.9
Typical Frequency Response .................................................. 43
6.10 Typical Damping Factor .......................................................... 43
6.11 Typical Output Impedance ...................................................... 43
6.12 Typical Phase Response ......................................................... 44
6.13 Typical Crosstalk ..................................................................... 44
7.1
Com-Tech 210 Power Draw, Current Draw and
Thermal Dissipation at Various Duty Cycles ............................. 45
7.2
Com-Tech 410 Power Draw, Current Draw and
Thermal Dissipation at Various Duty Cycles ............................. 46
7.3
Com-Tech 810 Power Draw, Current Draw and
Thermal Dissipation at Various Duty Cycles ............................. 46
7.4
Com-Tech 1610 Power Draw, Current Draw and
Thermal Dissipation at Various Duty Cycles ............................. 46
8.1
PIP2 Adaptor Connection ........................................................ 47
8.2
Installing a
PIP Module ............................................................ 47
