A P P L I C A T I O N S
Enclosed are several diagrams to help you plan your own system installation. Figures 1 through 3 (on pages 3 and 4) show how to configure the Kappa 255a to drive front and rear speakers and a subwoofer, tweeters and midrange speakers and a pair of subwoofers, and a tweeter/midrange component set, midbass speakers, and a subwoofer.
For system expansion, see Figure 4 on the next page.
NOTE: For simplicity, Figures 1 through 4 do not show power, remote, and input connections.
Figure 1. This wiring diagram shows a Kappa 255a amplifier driving front and rear pairs of
Set Switches As Shown
(set controls for your system plan)
KAPPA 255a
(front panel) | RF |
– R +– + L – – R + + L – |
- | - |
+ | + |
+ | + |
LR
x15 | FRONT | ||
C | 9V | ||
|
| ||
x1 | R |
| |
O | .25V | ||
| |||
| S | ||
| S |
| |
32Hz | O |
| |
| V |
| |
| E | BR | |
320Hz | R |
| |
| G |
| A |
| I |
| N |
| 32Hz |
M |
|
O | 320Hz |
D |
| REAR |
| SUBWOOFER | |
C | 9V | G | 9V | G |
| A |
| A | |
R |
|
| ||
| I |
| I | |
O | .25V | .25V | ||
S | N | N | ||
S20Hz
O
V |
|
| M D FREQ | |
E | BR |
| ||
| ||||
R |
|
| O | 80Hz |
|
|
| D | |
LF
- | - |
RR
LP |
| O ST |
| U | |
HP |
| T |
| ||
FLAT |
| P |
| U | |
|
| T |
E | LP |
|
HP 
FLAT 
O ST |
| E | B | MIN |
|
| |||
U |
|
| O | Q |
T |
|
| ||
P |
|
|
|
|
UMAX
T
INT 
SUB
EXT
INPUT
X
O 32Hz
V | 60 |
E | Hz |
R | 320Hz |
EXT
REAR
FRONT LP
INPUT
Set to EXT for source unit with subwoofer outputs
KAPPA 255a
(rear panel)
REM – R + | + L – |
SUBWOOFER 1 and 2 |
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|
are common outputs | + | - |
| ||||
and are supplied as |
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| |
a convenience for |
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KAPPA 255a
(top panel)
Figure 2. This wiring diagram shows a Kappa 255a amplifier driving a pair of tweeters, a pair of midrange speakers, and a pair of subwoofers (4 Ω minimum).
Set Switches As Shown
(set controls for your system plan)
applications |
Subwoofer
– R +– + L – – R + + L – |
KAPPA 255a | RF | - | - | LR | |
(front panel) |
| ||||
Tweeter | + | + | Mid | ||
| |||||
| LF | + | + | RR |
x15 | FRONT |
|
|
C | 9V | G | |
|
| A | |
x1 | R |
| |
| I | ||
O | .25V | ||
| S | N | |
| S |
|
|
32Hz | O |
| 32Hz |
| REAR |
| SUBWOOFER | |
C | 9V | G | 9V | G |
| A |
| A | |
R |
|
| ||
| I |
| I | |
O | .25V | .25V | ||
S | N | N | ||
S20Hz
O
Tweeter - | - | Mid |
| V |
| M |
|
| E | BR |
| |
320Hz | R |
| O | 320Hz |
O | ST | D | ||
LP | E | LP | ||
U |
|
| ||
HP | T |
|
| HP |
FLAT | P |
|
| FLAT |
U |
|
| ||
| T |
|
|
|
V |
|
| M D FREQ | ||
E | BR |
| |||
R |
|
| O |
| 80Hz |
| ST |
| D | B | |
O |
| E |
| MIN | |
U |
|
|
| O | Q |
T |
|
|
| ||
P |
|
|
|
|
|
UMAX
T
INT 
SUB
EXT
INPUT
X
O 32Hz
V | 60 |
E | Hz |
R | 320Hz |
EXT
REAR
FRONT LP
INPUT
Set to EXT for source unit with subwoofer outputs
FRONT LP creates bandpass when rear output is set to HP
KAPPA 255a
(rear panel)
REM – R + | + L – |
- | - |
+ | + |
KAPPA 255a
(top panel)
Subwoofer | Subwoofer |
(4 Ω min.) | (4 Ω min.) |
