Page 2 - – Infinity Kappa 255a Power Amplifier; K A P P A 2 5 5 A P O W E R A M P L I F I E R
2 – Infinity Kappa 255a Power Amplifier The Kappa 255a is a member of Infinity’s new Kappa seriesof mobile power amplifiers. Housed within the sleek,extruded aluminum frame, you’ll find five channels ofamplification – four for full-range, midrange, or high-frequency reproduction and a 200 watt class...
Page 3 - Set Switches As Shown; Set Switches As Shown; A P P L I C A T I O N S
Owner ’s Manual/Installation Guide – 3 Enclosed are several diagrams to help you plan your ownsystem installation. Figures 1 through 3 (on pages 3 and 4)show how to configure the Kappa 255a to drive front andrear speakers and a subwoofer, tweeters and midrangespeakers and a pair of subwoofers, and a...
Page 4 - – 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 ); S Y S T E M E X P A N S I O N
4 – 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 ) R – – – + + + L R – – + + L KAPPA 255a (front panel) KAPPA 255a (rear panel) REM – R + – + L SUBWOOFER 1 and 2are common outputsand are supplied asa convenience fordual-subwooferapplications Subwoofer - + + - + - L...
Page 5 - Owner ’s Manual/Installation Guide – 5; P R E C A U T I O N S A N D N O T E S
Owner ’s Manual/Installation Guide – 5 • The Kappa 255a has five levels of circuit protection that monitor the amplifier and will shut it down if theelectrical system voltage drops below 10 Vdc or exceeds15.5 Vdc, temperatures are above 194° F (90° C), shortcircuits occur, or current draw exceeds pr...
Page 6 - KAPPA 255a WIRING CONNECTIONS; I N S T A L L A T I O N
6 – Infinity Kappa 255a Power Amplifier The Kappa 255a is easy to install. For optimumperformance, we recommend using high-quality, twisted-pair shielded RCA audio cables and 14-gauge or largerspeaker wire. Also, you’ll need a minimum of 10-gaugestranded copper wire (e.g., red and black jackets) for...
Page 7 - I N S T A L L A T I O N ( c o n t i n u e d )
Owner ’s Manual/Installation Guide – 7 4. Using the Weco 5-pin connector, connect a blue wire from the source unit’s remote connection to the REM terminal.Depending on polarity requirements (see Figures 1through 3 on pages 3 and 4), connect speaker wires fromthe subwoofer(s) to the L and R (+ and –)...
Page 8 - – Infinity Kappa 255a Power Amplifier; S P E C I F I C A T I O N S; T R O U B L E S H O O T I N G; A P P A; Maximum Current Draw:
8 – Infinity Kappa 255a Power Amplifier Use the following guide to identify symptoms and solveproblems. Make sure the vehicle’s electrical system isworking properly and power is reaching the Kappa 255a(i.e., green LEDs on the top panel are on). SYMPTOM LIKELY CAUSE SOLUTION No audio Low /No Remote C...