6b/9b amplifier bridged mode hook up, 11 9b, Five channel power amplifier – Bryston 9BSST User Manual

Page 13: Heat, Bridging kits

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BA

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4v

1v 2v

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TP

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25

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X

LR

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H

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IN

PU

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Pin

1

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Pin

2

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IP

:

Pin

3

/R

IN

G

:

G

N

D

PO

S(+

)

N

E

G

(–

)

WARNING!

RISK OF HAZARDOUS ENERGY

. MAKE PROPER SPEAKER CONNECTIONS.

SEE OPERATING MANUAL BEFORE USING.

HO

M

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HE

AT

RE

S

ET

TIN

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8

PO

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18

0

SIN

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6B/9B AMPLIFIER BRIDGED MODE HOOK

UP

6B+9B-BRIDGED-HOOKUP(RP8)PMC.cdr WRP 1 NOV 2002

PU

SH

0

BA

LA

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IN

PU

T

4v

1v 2v

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TP

UT

25

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/8

X

LR

/P

H

O

N

E

IN

PU

T

Pin

1

/S

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EV

E:

Pin

2

/T

IP

:

Pin

3

/R

IN

G

:

G

N

D

PO

S(+

)

N

E

G

(–

)

WARNING!

RISK OF HAZARDOUS ENERGY

. MAKE PROPER SPEAKER CONNECTIONS.

SEE OPERATING MANUAL BEFORE USING.

HO

M

E T

HE

AT

RE

S

ET

TIN

GS

B

AL

AN

C

ED

IN

PU

T:

SIN

G

LE

E

N

D

ED

IN

PU

T:

See

m

an

ual

fo

rfu

rt

her

d

et

ai

ls

.

2V

1V

S

EN

SIT

IV

IT

Y

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r1

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W

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8

PO

LA

R

IT

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18

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IN

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PU

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0

The

same

signal

is

fed
into

both

amplifier

channel

inputs

via
a

“Y”

adaptor

cable.

Note

that

the
POLARITY

of

one

channel

is

the

inverse

of
the

other.

THIS

IS
ESSENTIAL

for
the

amplifier

to
operate

in

bridged

mode.

Fa

ilu

re

to

IN

V

ER

T o

n

e o

f t

he

c

h

an

n

els

re

la

tiv

e t

o t

h

e o

th

er

w

ill

re

sul

t i

n

z

er

o o

u

tp

u

t.

It

d

oe

s n

ot

m

at

te

r

which

channel

is

set
to
zero

degrees

and

which

one

is

set
to
180

degrees,

however,

as
long

as
they

are

different.

When

bridging

two

channels

together

the

resultant

output

will

be
increased

by
6

dB
relative

to
the

output

of
a

single

channel.

To
keep

the

gain

of
a

bridged

channel

the

same

as
that

of
a

single

channel,

the

SENSITIVITY

switch

should

be
set
to

a

higher

voltage

setting.

For
example,

if

a

single

channel

is

set
to

“1V”

sensitivity,

then

both

the
bridged

channels

would

be
set
to

“2V”.

Likewise,

if

a

single

channel

were

set
to

a

sensitivity

of

“2V”,

then

the
bridged

channels

would

be
set
to

“4V”.

While

any

two

channels

can

be
bridged,

we
recommend

that

adjacent

channels

be
used

(as
shown)

to

facilitate

the
external

wiring

between

the
channels.

Note

that

only

the
POSITIVE

(+)

terminals

on
the
6B
power

amplifier

modules

are

connected

to
the

speaker.

A
ground

wire

(16g

or
heavier

wire

recommended)

must

be
connected

between

the

two

BLACK

output

terminals

on
the
6B
amplifier

channels

being

bridged.

DO
NOT

CONNECT

ANYTHING

ELSE

TO
EITHER

OF
THESE

BLACK

OUTPUT

TERMINALS!

The

red
(positive)

output

terminal

of

the
non-inverted

channel

(the

one

whose

polarity

is
set

to
zero

degrees)

is
connected

to
the

speakers

positive

(+)

terminal.

The

red

(positive)

output

terminal

of
the

inverted

channel

(the

one

whose

polarity

is

set
to

180

degrees)

is

connected

to

the
speakers

negative

(-)

terminal.

To SOURCE SIGNAL

BA

LA

N

C

ED

IN

PU

T

4v

1v 2v

OU

TP

UT

25

0W

/8

X

LR

/P

H

O

N

E

IN

PU

T

Pin

1

/S

LE

EV

E:

Pin

2

/T

IP

:

Pin

3

/R

IN

G

:

G

N

D

PO

S(+

)

N

E

G

(–

)

WARNING!

RISK OF HAZARDOUS ENERGY

. MAKE PROPER SPEAKER CONNECTIONS.

SEE OPERATING MANUAL BEFORE USING.

HO

M

E T

HE

AT

RE

S

ET

TIN

GS

B

AL

AN

C

ED

IN

PU

T:

SIN

G

LE

E

N

D

ED

IN

PU

T:

See

m

an

ual

fo

rfu

rt

her

d

et

ai

ls

.

2V

1V

S

EN

SIT

IV

IT

Y

fo

r1

00

W

@

8

PO

LA

R

IT

Y

18

0

SIN

G

LE

E

N

D

ED

IN

PU

T

PU

SH

0

BA

LA

N

C

ED

IN

PU

T

4v

1v 2v

OU

TP

UT

25

0W

/8

X

LR

/P

H

O

N

E

IN

PU

T

Pin

1

/S

LE

EV

E:

Pin

2

/T

IP

:

Pin

3

/R

IN

G

:

G

N

D

PO

S(+

)

N

E

G

(–

)

WARNING!

RISK OF HAZARDOUS ENERGY

. MAKE PROPER SPEAKER CONNECTIONS.

SEE OPERATING MANUAL BEFORE USING.

HO

M

E T

HE

AT

RE

S

ET

TIN

GS

B

AL

AN

C

ED

IN

PU

T:

SIN

G

LE

E

N

D

ED

IN

PU

T:

See

m

an

ual

fo

rfu

rt

her

d

et

ai

ls

.

2V

1V

S

EN

SIT

IV

IT

Y

fo

r1

00

W

@

8

PO

LA

R

IT

Y

18

0

SIN

G

LE

E

N

D

ED

IN

PU

T

PU

SH

0

To

SOURCE

SIGNAL

While

single

ended

or
unbalanced

inputs

are

used

here,

bridging

can

also

be
accomplished

using

the

balanced

inputs

as
shown

to

the
left.

When

bridging

“PRO”

channels

which

are

eq

uip

pe

d

w

ith

le

ve

l

co

nt

ro

ls

,

it

is

imperative

that

the
level

controls

on
BOTH

channels

being

bridged

be
set

to
their

maximum

clock-wise

positions

(0

dB).

While

balanced

inputs

are

used

h

er

e,

b

rid

g

in

g

ca

n

a

ls

o

b

e

accomplished

using

the

single

ended

inputs

as
shown

at

right.

HEAT

When

two

6B
channels

are
bridged

the

power

output

can

exceed

800

Watts.

Two

9B
channels

can

provide

over

300

W

a

tt

s.

W

h

e

n

o

p

e

ra

te

d

a

t

th

e

se

elevated

power

levels

there

is
a

p

o

s

s

ib

il

it

y

o

f

th

e

a

m

p

li

fi

e

r

overheating.

When

overheated

they

will

automatically

be

shutdown

by

internal

protection

circuitry

to

prevent

a

n

y

d

a

m

a

g

e

o

cc

u

rr

in

g

to

th

e

amplifier.

To
prevent

overheating

it

may

be
necessary

to
provide

external

fan

cooling

especially

if

the

amplifier

is

installed

in

an
enclosed

cabinet

and

operated

at
or
near

maximum

power

levels.

BRIDGING KITS

Bryston

can

supply

Bridging

Kits

consisting

of
a

“Y”

adaptor

cable

and

a

ground

strap

cable.

The

“Y”

adaptor

cable

can

be
equipped

with

either

RCA

(Phono)

connectors

(Part

#

150901)

for

single-ended

a

p

p

li

c

a

ti

o

n

s

,

o

r

w

it

h

X

L

R

co

n

n

ec

to

rs

(P

ar

t

#

1

5

0

9

0

2

)

fo

r

balanced

applications.

The

ground

strap

cable

is
equipped

with

gold

plated

spade

lug

connectors

on

either

end.

Bryston

Bridging

Kits

are

designed

for
use

with

adjacent

channels.

AL

THOUGH 6B CHANNELS ARE SHOWN, THE

SAME HOOKUP APPLIES TO 9B CHANNELS

11

9B

SST

FIVE CHANNEL POWER AMPLIFIER

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