Audio outputs
Speaker connection
Danger!
The arrow symbol next to the speaker output connectors indicates the presence of touch
sensitive voltages, which can cause harm to body and health. Please, be sure to adhere to
corresponding notes and instructions in this owner’s manual when establishing speaker
connections.
Caution!
The minimum load in Low-Z mode is 4 Ω per channel.
The PM 502 allows connecting
• low impedance (low-Z) speakers (e.g. 4 Ω or 8 Ω) or
• high impedance (high-Z) speakers in Direct Drive mode (see section 100 V Direct Drive,
page 16 for details).
Low-Z speakers can be connected via speakON or Euroblock connectors. High-Z speakers shall
be connected via the Euroblock connectors only, please refer to the following sections.
speakON
The PM 502 is equipped with professional speakON high-performance connectors, offering
electrical and mechanically secure connection, which complies to all security regulations. It
also allows the use of high quality speaker cables with diameters of 4 x 2.5 mm
2
. The pin
assignment of these sockets is 1+ (hot) and 1- (cold).
Notice!
Using original Neutrik connectors (e.g. NL4FC) is recommended for optimal audio quality.
Notice!
Using passive subwoofers, which sum the input signal of the left and right channel, is not
possible for technical reasons.
5.3
5.3.1
12 en | Connection PM 502
15-May-14 | 02 | F01U297804 User manual Bosch Sicherheitssysteme GmbH
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General
Weight and Dimensions
