Infinity Kappa 54a 4-Ch User Manual

Page 8

8 – Infinity Kappa 54a Power Amplifier

Use the following guide to identify symptoms and solve
problems. Make sure the vehicle’s electrical system is
working properly and power is reaching the Kappa 54a (i.e.,
green LEDs on the top panel are on).

SYMPTOM

LIKELY CAUSE

SOLUTION

No audio

Low /No Remote

Check connections;

Turn-On Voltage

test turn-on voltage

Speakers are not

Check wiring; use

connected or are

VOM/DVM to

blown

measure speaker
coil impedance

Distorted audio

Input sensitivity

See Setting Input

is not set properly

Sensitivity on
previous page

Audio lacks

Speakers are wired

Check polarity of

“punch”

with wrong polarity

connections; refer to
Applications (page 3 )

SYMPTOM

LIKELY CAUSE

SOLUTION

Audio cycles

A protection circuit

Verify the following–

off and on;

is turning the

electrical system is

Amber protec-

amplifier off and on

between 10 ~ 15.5 Vdc;

tion LEDs (on

temperature is not

top panel) are on

over 194°F (90°C);
no short circuits;
speaker loads are not
less than 1 ohm
(2 ohms in mono)

Audio cycles

GAIN is set too high

Set Input Sensitivity

off and on;

correctly (see previous

Amber protection

page)

LEDs (on top
panel) are on

Fuse blows

Incorrect wiring or

Check connections;

short circuit

refer to Applications
(see page 3)

VOICE (818) 407-0228 • FAX (818) 709-9486

www.infinitysystems.com

Infinity constantly strives to update and improve existing products, as well as create new ones; therefore, the specifications and construction details in this and related Infinity
publications are subject to change without notice. Unibloc is a trademark of Infinity Systems, Inc.

P/N SH1103 Rev. 2

A P P A

5 4

. . .

Power Output, 4 ohms:

4 x 50 watts

Power Output, 2 ohms:

4 x 75 watts

Power Output, Bridged 4 ohms: 2 x 150 watts

Frequency Response:

20 Hz ~ 20 kHz

Input Sensitivity:

250 mV ~ 9 V

THD + Noise (4 ohms):

0.05 %

Signal-to-Noise:

> 95 dB

Maximum Current Draw:

40 A

Dimensions (w x h x l):

16 x 2

⁄

x 8

⁄

in.

406.4 x 55.6 x 215.9 mm

T R O U B L E S H O O T I N G

S P E C I F I C A T I O N S