Infinity 54a User Manual download pdf (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

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

KAPPA 54A...

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

⁄16 x 8

⁄2 in.

406.4 x 55.6 x 215.9 mm

TROUBLESHOOTING

SPECIFICATIONS

1 2 3 4 5 6 7 8

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Infinity 54a User Manual Page 8

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