Bose 2150 Specifications download pdf (Page 24)

English

Figure 28

⁄

" phone jack unbalanced

input connection

5.0 Installation

5.2.1 Balanced operation (cont.)

For the quick connect terminal block, use the female connector provided. Pin 3 carries

the + (hot, non-inverting) side of the signal. Pin 2 carries the – (low, inverting) side of the

signal. Pin 1 is ground (see Figure 27).

When using the standard input module for either amplifier, you can reverse the polarity of

the balanced inputs by changing four jumpers located on the input board, just behind the

input connectors.

5.2.2 Unbalanced operation

For the

⁄

" phone jack, use a 2-conductor (tip-sleeve)

⁄

" phone plug. The tip of the plug

carries the signal and the sleeve is ground. The ring connection in the jack is automatically

grounded by the sleeve (see Figure 28).

INPUT IMPEDANCE 25K OHMS EACH LEG TO GROUND (TOTAL 50K OHMS BALANCED)

SEQUENCE

EQUALIZATION

SEND RECEIVE

CH2

CH1

INPUT CH 2 INPUT CH 1

CH2 EQ. OUT

CH1

PUSH PUSH

J20018292

RECV

PN# 1234567

WARNING

RISK OF HAZARDOUS

ENERGY! MAKE PROPER

SPEAKER CONNECTIONS.

SEE OPERATING

MANUAL BEFORE USING.

AVERTISSEMENT

ENERGIE ELECTRIQUE

DANGEREU SE. VOIR

LANOTICE

DE FONCTIONNEMENT.

For bridged operation.

Consult user manual.

Use Class 2 Wiring

Figure 27

Quick connect terminal block

balanced input connection