[Rear panel]
Input terminal
Also, the input can be converted into a transformer- balanced input using an optional matching transformer
3P screw terminal
H:HOT
C:COLD
E:GROUND
Balanced phone jack
T (Tip): HOT R (Ring): COLD S(Sleeve): GROUND
Phone jack | Phone plug |
Level control switch
Usually, set this switch to OFF. When an interface unit is connected, shifting this switch to ON permits external input level adjustment.
[Precautions]
No sound is output if the level control switch is set to
ON without connecting an interface unit. Confirm the switch position before switching on the power. Be sure to switch off the power when changing control switch
settings.
Control I/O terminal
Connects to the an interface unit when monitoring or
performing remote controls from external equipment. For details, contact your TOA dealer.
[Precautions]
No other unit other than an interface unit must be
connected to the terminal. Be sure to switch off the
power when connecting an interface unit.
Output mode selector switch
Selects STEREO, BTL or PARALLEL mode.
STEREO mode
Channels 1 and 2 are operated independently. (The
unit functions as a normal stereo amplifier.) Channel
1 input signal goes to Channel 1 output, and Channel 2 input signal goes to Channel 2 output.
BTL mode
The unit functions as a monaural amplifier with 1 input and 1 output. Channel 1 input signal goes to both output BTL (+) and
PARALLEL mode
The unit functions as a monaural amplifier with 1 input and 2 outputs. Channel 1 input signal goes to
the outputs of both Channels 1 and 2. Input signal
levels of channels 1 and 2 can be set independently.
[Precautions]
Use only Channel 1 input terminal when in BTL or
PARALLEL mode. Do not use Channel 2 input terminal.
Confirm the position of the output mode selector switch
before switching on the power. Be sure to switch off the
power when changing mode switch settings.
Output terminal (with a protection cover)
Connect speaker cables to these terminals. Because the upper terminals are connected in parallel with the lower terminals, both terminals can be used simultaneously. Refer to p.8 for speaker cable connections.
[Precautions]
Be sure to switch off the power when connecting the speaker cables. Never connect two amplifier outputs in parallel under any circumstances.
Grounding terminal for signals
When the power amplifier is connected to other equipment, grounding sometimes creates a loop,
producing hum noise. This loop can be cut and noise reduced by removing a shorting metal piece connecting two terminals.
ACinlet
Rear mounting bracket
6