Dynacord IPX 5 4 [15/32] Power outputs

IPX Series DSP Multichannel Networking Power

Amplifier

Controls, indicators, and connections | en 15

Bosch Security Systems, Inc. Installation manual 2018.04 | 01 | F.01U.330.705

Figure6.3: Control port

6.4 Power outputs

The output connectors on IPX series are in Euroblock type for 4 channels (IPX5:4, IPX10:4,

IPX20:4) respectively 8 channels (IPX10:8). This allows an easy pre-wiring of the cables

outside the rack and a fast - one connection for multiple channels at once, without the danger

of wiring errors. Cabling requires class 3 wiring. The operation modes (normal, bridge,

parallel, parallel-bridge can be set in the DSP menu.

Normal mode cabling

The speaker is connected to the respective + and - pole. The correct connection is also

indicated at the amplifiers rear panel.

Normal mode

Figure6.4: Normal mode

Bridge mode cabling

In Bridge mode both amp channels work in push-pull operation to provide doubled output

voltage. In bridge mode operation speaker connection has to be established using pins 1+ and

2+, resp. 3+ and 4+, (5+ and 6+, 7+ and 8+ on IPX10:8), see illustration.

Caution!

In Bridge mode operation, it is not allowable for the load connected to all below a value of 4

ohms. Extremely high voltages can be present at the output. The connected speaker systems

must be able to handle such voltages. Make sure to completely read and fully observe power

rating specifications of the speaker systems to be used and to check them against the output

power capacity of the power amp.

Property damage and/or personal injury may occur.

Parallel mode cabling

In parallel mode two amplifier channels are coupled to deliver double the output current,

while the maximum voltage is the same as an individual channel, see illustration.