DATASHEET
23
Appendix
Use only the constant-voltage outputs of the amplifiers (100, 70 or 50 V) and not those with a constant impedance (4, 8 or 16 Ohms): for
correct power sizing of the system refer to the manuals of the amplifiers in question and to the features of the speaker units used.
• System with dual amplification for separate Speech and Music channels (see point 5.2)
Connect the MIX OUT output socket (27) to the line input of the amplifier for the SPEECH signal.
Connect the MUSIC OUT output socket (26) to the line input of the amplifier for the MUSIC signal.
The output of the SPEECH amplifier must be connected in parallel to the SP terminals (17) and (22), while that of the MUSIC amplifier must be
connected in parallel to the M. terminals (18) and (23), as shown in the figure.
Always pay great attention to the correct polarities between the amplifier output and the SP and M terminal strips: the 0V line of the amplifier
on the 0 terminals of the panel and the 100V (or 70V or 50V) line of the amplifier on the L terminals of the panel. In the event of incorrect
connection a short circuit could occur on the amplifier output.
• System with amplification of a single speech channel/music (see point 5.1)
Connect the MIX OUT output socket (27) to the line input of the amplifier.
The MUSIC OUT output socket (26) is not used.
The output of the amplifier must be connected in parallel to the SP terminals (17) and (22) and to the M. terminals (18) and (23), as illustrated in
the figure. If background music is not envisaged, it is possible to ignore the connection to the M. terminals.
SPEECH
Amplifier
P8136/P8236
Units
MUSIC
Amplifier
Section BConnections (2)
Use only the constant-voltage outputs of the amplifiers (100, 70 or 50 V) and not those with a constant impedance (4, 8 or 16 Ohms): for
correct power sizing of the system refer to the manuals of the amplifiers in question and to the features of the speaker units used.
CONNECTION OF AMPLIFIERS/SPEAKER UNITS
For connections on the amplifier input side refer to the amplifier manual, keeping in mind that the connection provides signals of the unbalanced type
at line level.
.
100V70V50V8Ω0V0V0V
BOOSTER
INPUT
Cavo schermato
Shielded cable
100V70V50V8Ω0V0V
BOOSTER
INPUT
70V50V8Ω0V0V0V
BOOSTER
INPUT
100V
0V
Cavo schermato
Shielded cable
Cavo schermato
Shielded cable
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