Bose 1800-VI Owner's Manual - Page 8

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Also for Bose 1800-VI: Quick Manual (2 pages), Installation Services (4 pages)

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4.0 Installation

4.6 Input wiring

You may use 1/4" phone jacks, XLR connectors, and quick connect terminal block

connectors for the input signal with either unbalanced 2-conductor or balanced

3-conductor cables. Use shielded coaxial cable to conduct the signal from the

source (mixer, equalizer, CD player) to the amplifier.

4.6.1 Balanced operation

For the 1/4" phone jack, use a 3-conductor TRS 1/4" phone plug. The tip of the plug

carries the + (hot, non-inverting) side of the signal. The ring carries the – (low, inverting)

side of the signal. The sleeve is ground (see Figure 1).

For the XLR, use a male XLR connector. Pin 2 carries the + (hot, non-inverting) side of the

signal. Pin 3 carries the – (low, inverting) side of the signal. Pin 1 is ground (see Figure 2).

Figure 1

1/4" phone jack balanced input

connection.

Figure 2

XLR balanced input connection.