Behringer DI4000 User Manual

ULTRA-DI PRO DI4000 User Manual

Pin 1

Pin 2 = (+) Signal

Positive

Pin 3 = (-) Signal

Shield

(+) Signal + Hum

(-) Signal + Hum

Negative

(+) Hum + Signal

(-) Hum + Signal

2 x Signal

Ground

RFI and Hum

= Signal + 6 dB

1

2

3

1

2

3

Fig. 3.1: Compensation of interference with balanced connections

For unbalanced use, pin 1 and pin 3 

have to be bridged

1 = ground/shield

2 = hot (+ve)

3 = cold (-ve)

1

2

3

1

2

3

Fig. 3.2: Different plug types

For connection of balanced and unbalanced plugs,

ring and sleeve have to be bridged at the stereo plug.