Crown Audio 140MPA Choose Input Wire and Connectors, Mic/Line Connectors Amp Input Connectors

Commercial Audio Series Mixer-Amplifiers

2 Setup

2.3 Choose Input Wire and Connectors

Crown recommends using pre-built or professionally wired bal- anced line (two-conductor plus shield), 22-24 gauge cables and connectors. Unbalanced line may also be used but may result in noise over long cable runs.

The 140MPA has two types of input connectors: Phoenix-type and RCA.

•Mic/Line Connectors and Amp Input Connectors: 3-pinPhoenix-type, balanced, one per input channel (Figure 2.3).

	MIC
+	–

•Dual RCA Input Connector: For stereo music signals, unbalanced, summed together, two connectors per input (Figure 2.4).

• Transformer-isolated 600-ohm input: 3-pin Phoenix- type. Summed into Input 1 for paging from a telephone system. See Figure 2.5.

+ –

To mic or line-level source

Figure 2.3 Mic/Line Connectors

and Amp Input Connectors

To stereo
line-level	-
source

Figure 2.4 Dual RCA Input Connectors

To telephone system interface/PBX output

Figure 2.5 Tel (Isolated)

Connector Wiring from Telephone System Interface or PBX

Operation Manual page 9