3.3.4 Input Connection. Crown IQ-PIP-AP

Macro-Tech 5002VZ Power Amplifier

3.3.4 Input Connection

Both the XLR and ¼-inch phone jack inputs are balanced. They have a minimum impedance of 10 K ohms

(5 K ohms with unbalanced wiring) and will accept the line-level output of most devices. The XLR connectors and phone jacks are provided on the standard

PIP2-FXQ input module (other PIP and PIP2 modules are described in Section 8.1). Correct input wiring will depend on two factors: (1) whether the input signals are balanced or unbalanced, and (2) whether the signal source floats or has a ground reference. Figures 3.7 and

3.8 show the recommended XLR connection techniques for each type of signal source.

Fig. 3.8 Balanced Input Wiring

The phone jack input connectors can be wired similarly for balanced or unbalanced, ground-referenced or floating sources. They have a standard tip-ring-sleeve (TRS) configuration: the tip is positive (+), the ring is negative

(–) and the sleeve is ground (see Figure 3.9). Wiring for various sources follows the XLR wiring guidelines shown in Figures 3.7 and 3.8.

The XLR and ¼-inch phone jacks provided on the

PIP2-FXQ are wired in parallel. This makes it possible to use one set for input to the amplifier and the other set for “daisy-chained” output to other amplifiers.

Please follow the instructions in Section 3.3.2 and 3.3.3

if the amplifier will be used in either Bridge-Mono or

Parallel-Mono mode. Remember, the Channel 2 input and level control are disconnected in both mono modes.

Fig. 3.7 Unbalanced Input Wiring

Reference Manual

Fig. 3.9 Balanced and Unbalanced

Phone Plug Wiring

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