bk reference 125.2 s2 User Manual

The Reference 125.2 S2 allows signal patch cables (interconnects) to be sourced from either balanced or
unbalanced volume level preamplifier/processor outputs. A switch is used to configure a SINGLE AMPLIFIER
CHANNEL for use with either a balanced (XLR) or unbalanced (RCA) output. 

There are two balanced input connectors on the Reference 125.2 S2. These connectors accept balanced vol-
ume level output from the preamplifier's balanced output connectors.

There are two unbalanced (RCA) input connectors on the Reference 125.2 S2. These connectors accept an
unbalanced (RCA) output from the preamplifier's (RCA) volume level outputs.

2

1

3

PIN 1 (GND)

PIN 1 (GND)

PIN 3 (-)

PIN 3 (-)

PIN 2 (+)

PIN 2 (+)

Balanced Interconnect Cable

1

2

3

PIN 1 (GND)

PIN 1 (GND)

PIN 3 (-)

PIN 3 (-)

PIN 2 (+)

PIN 2 (+)

Amplifier Balanced Input Connector

C H A N N E L 1 I N P U T

X L R ( B A L A N C E D )

R C A ( U N B A L A N C E D )

R C A I N P U T

X L R I N P U T