Multi channel DSP Amplifier
When the multi channel DSP amplifier is connected to the DSP matrix mixer it is
recommended to connect via either Amp Link connectors or the phoenix terminal inputs. The
amplifier also has XLR/TRS combo inputs in case it will be used without the DSP matrix mixer.
Link/Act 100Mbps
Network
Override
Sensor +
+12V DC
Sensor -
Bridge 3+4
Input 3 Sens
Input 4 Sens
Bridge 1+2
Input 1 Sens
Input 2 Sens
Power
Input 1 Input 2 Input 3 Input 4
Input 1 Input 2 Input 3 Input 4
Amp Link Input
Link 1 Link 2 Link 3 Link 4
Output 1
Output 3 Output 4
Output 2
0 4Ω 8Ω 70V 100V
0 4Ω 8Ω 70V 100V
0 4Ω 8Ω 70V 100V
0 4Ω 8Ω 70V 100V
0V DC
Active
1/2 3 4
7 8 9 111012(4x) 13 14
5(4x) 6(4x)
Number Item Description
1 Power on/off AC mains power switch.
2 Mains inlet AC mains input socket.
3 Loudspeaker
outputs
– 4 x loudspeaker outputs via Phoenix terminal:
– Connections: 100V, 70V, 8Ohm, 4Ohm and 0V.
4 Fan grille Exhaust air vent for amplifier cooling. Do not obstruct!
5 XLR/TRS combo
inputs/loop out
– 4 x XLR 3-pin balanced line level audio input (1-4). Mainly used when the
amplifier is not connected to the DSP matrix mixer (standalone amplifier):
– The inputs/outputs are internally, in parallel, connected with the associated
Phoenix input connectors, for use as either input or loop‑through output.
– XLR 3-pin number connection: 1 = ground, 2 = + signal, 3 = - signal.
6 Phoenix inputs/
loop out
– 4 x 3-pole Phoenix connector audio input (1-4):
– The inputs/outputs are internally, in parallel, connected with associated
XLR/TRS combo input/loop out connectors for use as either input or output.
– Left to right pin configuration: 1 = + signal, 2 = - signal, 3 = ground.
7 Amp Link
connection
– 1 x RJ45 connector. Connects 4 sequential channels of the amplifier to the DSP
matrix mixer. Processor output channels 1-4 or 5-8.
– For best practice Bosch recommends use with STP CAT‑5 (e) cable.
– Maximum recommended cable distance 5m.
8 Auto Standby
Mode
connections
– 4‑pole Phoenix connector to attach a Bosch motion sensor, to activate auto
standby.
– The amplifier also can supply 12V DC power for a motion detector.
– Left to right pin configuration: 1= +12V DC, 2 = 0V DC, 3= Sensor +, 4 =
Sensor -.
9 Override input – 4-pin pluggable screw socket/connector with ESD protection:
– Logic override input (+, - and shield balanced input).
6.3
PLENA matrix Connections | en 19
Bosch Security Systems B.V. Operation manual 2013-06 | V1.0 |