Infinity A P P L I C A T I O N S c o n t i n u e d, Infinity Kappa 255a Power Amplifier

A P P L I C A T I O N S ( c o n t i n u e d )

Figure 3. This wiring diagram shows a

Kappa 255a amplifier driving a front

set of tweeter/midrange components, a

rear pair of midbass speakers, and a

single subwoofer.

– R +– + L – – R + + L –

Set Switches As Shown

KAPPA 255a

(set controls for your system plan)

R

-

-

(front panel)

FRONT

REAR

SUBWOOFER

Plate

+

+

x15

9V

G

G

C

C

9V

9V

G

A

A

A

x1

R

R

I

I

I

O

.25V

O

.25V

.25V

S

N

S

N

N

32Hz

S

32Hz

S

20Hz

L

+

+

O

O

V

M

V

M

FREQ

320Hz

E BR

E BR

D

Plate

-

-

R

D 320Hz

R

D

B

80Hz

O

O

LP

O ST

E

LP

O ST

E

MIN

U

U

O

Q

HP

T

HP

T

FLAT

P

FLAT

P

MAX

U

U

Set to EXT for

T

T

INT

SUB

source unit with

EXT

INPUT

subwoofer outputs

X

32Hz

O

60

REM

– R +

+ L –

V

E

Hz

R

320Hz

FRONT LP creates

EXT

REAR

bandpass when rear

FRONT LP

INPUT

output is set to HP

KAPPA 255a							KAPPA 255a	SUBWOOFER 1 and 2
(top panel)							(rear panel)	are common outputs	+	-
								and are supplied as
								a convenience for
								dual-subwoofer
S Y S T E M E X P A N S I O N								applications
									Subwoofer
Figure 4. In this expanded							KAPPA 52a
system, a Kappa 52a
drives a front pair of
tweeters. The 52a’s low-		Front L/R Inputs
pass outputs feed a Kappa	(from Source Unit)								To Front L/R
255a to drive stereo pairs
							L/R Outputs		Tweeters
of midrange and midbass
							(Low-Pass)
speakers. An external
subwoofer signal feeds the
Kappa 255a to drive the
subwoofer(s). Another
Kappa 52a drives a rear							KAPPA 255a
pair of speakers from the
source unit’s rear outputs.							Front L/R Inputs
Subwoofer Inputs										50w x 4 + 200W x 1
										2 5 5 a
(from Source Unit)
			FRONT			REAR
		x15	C				BR
			R			O	ST
		x1	O		LP
			S			U
			S		HP	T
			O
			V		FLAT	P
				BR		U
			E			T	To Subwoofer(s)
			R
		LP	O	ST
			U
		HP	T			EXT
		FLAT	P				REAR
			U
			T		FRONT LP		INPUT
				INT	SUB		KAPPA 52a
				SUBWOOFER
				EXT	INPUT
		Rear L/R Inputs
	(from Source Unit)								To Rear L/R
									Speakers

L Midbass

R Midbass

To L/R

Midrange

Speakers

To L/R

Midbass

Speakers

4 – Infinity Kappa 255a Power Amplifier