Input/Output Connections - B&K FIVE OR SEVEN CHANNEL 125.5 S2 User Manual

6
Use either RCA unbalanced or XLR balanced to connect the preamplifier to amplifier.
C O N T R O L I / O
CONTROL IN ALLOWS AMPLIFIER
OPERATION WHEN A 5-24V SIGNAL
IS APPLIED WITH A 3.5mm MINI JACK
C T R L
I N
C T R L
O U T
1 2 V D C
2 0 0 m A
BUTTON
C O N T R O L I / O
CONTROL IN ALLOWS AMPLIFIER
OPERATION WHEN A 5-24V SIGNAL
IS APPLIED WITH A 3.5mm MINI JACK
C T R L
I N
C T R L
O U T
1 2 V D C
2 0 0 m A
BUTTON
PUSHED IN
Binding posts are provided for speaker connections. There is one pair provided for
each amplifier channel output. They are designed to accept a banana-type plug,
spade-lug connector (shown right), terminal posts, or bare wire. They are color
coded for easy identification. The positive (+) RED post should always be connect-
ed to the speakers (+) RED jack. The negative (-) BLACK post should always be
connected to the speakers (-) BLACK jack.
Shown right is the ampli-
fier to speaker connec-
tions (4 gauge (AWG)
wire maximum).

INPUT/OUTPUT CONNECTIONS

RCA Unbalanced Connections
SURROUND LEFT
SURROUND BACK LEFT
I N P U T 1 I N P U T 1 I N P U T 2 I N P U T 2
X L R
( B A L A N C E D )
R C A R C A ( U N B A L A N C E D )
( U N B A L A N C E D )
BUTTON
OUT OUT
I N P U T 1 I N P U T 1 I N P U T 2 I N P U T 2
X L R
( B A L A N C E D )
R C A
( U N B A L A N C E D )
BUTTON
PUSHED IN
SURROUND LEFT
SURROUND BACK LEFT
SPEAKER OUTPUTS
CONTROL IN ALLOWS AMPLIFIER
OPERATION WHEN A 5-24V SIGNAL
IS APPLIED WITH A 3.5mm MINI JACK
C H A N N E L 1 I N P U T
C T R L
X L R
I N ( B A L A N C E D )
C T R L
R C A
O U T ( U N B A L A N C E D )
1 2 V D C
2 0 0 m A
C O N T R O L I / O
F U S E
C AU T I O N : F O R C O N T I N U E D
P R O T E C T I O N A G A I N S T R I S K
O F F I R E R E P L A C E O N LY W I T H
S A M E T Y P E A N D R AT I N G .
C H A N N E L 1 O U T P U T
P O S I T I V E
C A U T I O N
R I S K O F E L E C T R I C S H O C K R I S K O F E L E C T R I C S H O C K
D O N O T O P E N D O N O T O P E N
A C L I N E
) + (
Surround
Back Left
CENTER
FRONT LEFT
I N P U T 3 I N P U T 3 I N P U T 4 I N P U T 4
X L R ( B A L A N C E D ) X L R ( B A L A N C E D )
R C A ( U N B A L A N C E D )
BUTTON
OUT
OR
I N P U T 3 I N P U T 3 I N P U T 4 I N P U T 4
X L R ( B A L A N C E D ) 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 ( U N B A L A N C E D )
BUTTON
PUSHED IN
CENTER
FRONT LEFT FRONT RIGHT
XLR Balanced Connections
C H A N N E L 2 I N P U T C H A N N E L 3 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 )
C H A N N E L 2 O U T P U T C H A N N E L 3 O U T P U T
N E G AT I V E P O S I T I V E N E G AT I V E P O S I T I V E N E G AT I V E
S E R I A L #
( - ) ) + ( ( - ) ) + ( ( - )
Surround Front Left
Left
SURROUND RIGHT
FRONT RIGHT SURROUND BACK RIGHT
I N P U T 5 I N P U T 5 I N P U T 6 I N P U T 6 I N P U T 7 I N P U T 7
X L R ( B A L A N C E D )
R C A ( U N B A L A N C E D )
BUTTON
OUT
I N P U T 5 I N P U T 5 I N P U T 6 I N P U T 6 I N P U T 7 I N P U T 7
X L R ( B A L A N C E D )
R C A ( U N B A L A N C E D )
BUTTON
PUSHED IN
SURROUND RIGHT
SURROUND BACK RIGHT
Spade Connector
C H A N N E L 4 I N P U T C H A N N E L 5 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 )
C H A N N E L 4 O U T P U T C H A N N E L 5 O U T P U T
P O S I T I V E N E G AT I V E P O S I T I V E N E G AT I V E
) + ( ( - )
) + ( ( - )
Center
Front Right
Banana Jack
C H A N N E L 6 I N P U T C H A N N E L 7 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 )
C H A N N E L 6 O U T P U T C H A N N E L 7 O U T P U T
P O S I T I V E N E G AT I V E P O S I T I V E N E G AT I V E
H i g h Pe r f o r m a n c e
A u d i o / V i d e o S y s t e m s
H a n d - M a d e i n t h e U . S . A .
) + ( ( - ) ) + ( ( - )
Surround Surround
Right Back Right