Aiphone BX-1200 - Manual (Page 10)

Line Output:
To operate a booster amplifier or tape recorder, use single conductor shielded cable with an RCA phono
plug from the LINE OUT to the input of the booster amplifier or tape recorder.
This output is subject to ail settings of each input gains, master gains and tone controls.
LINE OUT
to booster amplifier
or tape recorder
c
OPERATIONS
D
Volume Control Setting:
For an average input signal, the MASTER volume control should be set to the middle. Relative to the
other input levels, it is recommended that the gains or losses be equally divided between individual
controls and the master control.
Tone Controls;
The separate tone controls provide boost and alternation of bass and treble response. The flattest res­
ponse is obtained when knobs are set to zero "0",
Turn BASS control knob or TREBLE control knob clockwise to raise the appropriate tone level by
approximately + lOdB, turn counter-clockwise to lower tone levetby approximately -lOdB.
Peak Indicator:
Each of the LEDs of the PEAK INDICATOR Panel indicates output level.
When voice or music is amplified, set the volume control knob at the position where the maximum out­
put level is below zero "0".
PEAK INDICATOR
o 0 o o O 0 o o o o
dB -20 18 15 12 9 6 3 0 1 +3 dB
Overload:
If the external load exceeds the rated power, a protection circuit will respond and protect the amplifier
immediately (even If the load is short-circuited). The protective circuit will be activated by loading 1.5
times over the rated output power.
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