What’s better than having an Infinity Kappa amplifier power your subwoofer? Having it power the front and back speakers, too! The Infinity Kappa 4 is the four-channel model of their popular Class D amp series. Each channel packs 125 watts of RMS power at 4 ohms and 150 watts at 2 ohms for your full-range speakers. You can bridge them for a pair of 300-watt channels in front-speaker-only systems. The compact size, thermal protection circuitry and low current draw means they can run off the batteries in small cars and motorcycles without affecting essential functions. (Then again, for some, great audio is essential.)
By using the Kappa Four car speaker amplifier, you’ll get serious drive for the money. The variable high- and low-pass filters help offset the past frequency limitations of Class D technology. This amplifier is also good for PA systems and other setups where saving space and cash are most important. Thanks to differential balanced inputs for both high-end pre-amps and low-end RCA speaker wire, you can add this amplifier to almost any OEM or aftermarket stereo setup. We’re an authorized Infinity dealer with lifetime tech support to take your audio experience beyond ordinary.
Every Kappa amplifier, including the full-range models, features high-efficiency Class D topology. This technology allows Infinity to engineer amplifiers that are more compact, generate less heat, and draw less current from the vehicle’s electrical system.
Class D Topology
Class D topology produces less heat, saves circuit board space and cost, and extends battery life in portable systems.
Low Frequency response : 32-320 Hz
High Frequency Response : 32-320 Hz
Number of Channels : 4
Frequency Response : 10-75000 Hz
Built In Crossovers : Yes
RMS Power Output : 300x2 Watts
Channel Separation : Yes
Amplifier Class : D
Fuse Rating : 40x2 A
Operating voltage 9-16 volts
RMS power @ 4 ohms 100W x 4
RMS power @ 2 ohms 120W x 4
RMS bridged power @ 4 ohms 240W x 2
Total peak power 1500W
Variable high- and low-pass filters (32-320 hz, 12db per octave)
4-gauge power and ground leads and a 80-amp fuse recommended — wiring and hardware not included with amplifier
Fuse rating: 40a x 2
7-1/16"W x 1-3/4"H x 13"D
Authorized Internet Dealer
Warranty: 1 Year Onlinecarstereo.com warranty.
1 Year warranty from Onlinecarstereo.com implies that repairs must be returned to Onlinecarstereo.com, not the manufacturer. More information can be found in our help section under returns & warranties. What's not covered : Misuse, abuse, defacement, physical damage of any kind, and improper installation / operation. Video and multimedia equipment with damaged or cracked screens.Subwoofers and speakers are not warranted against being blown, burned or abused.
This my first experience with Infinity amps. So far i like what i see and hear. I have this powering my front stage of 6.5 CDT components and image tweets and a Memphis 10" sub. The Cdts love power and the Kappa four provides it. The Memphis sub sounds great.
I replaced two amps with the Kappa four and my system hasn't sounded better.
The Kappa four is simple to install with its small footprint, and adjusting is easy.
This Infinity amp was a pretty penny -- it was worth it though. It’s slim and can fit into tight spaces, but despite that it doesn’t get hot easily. I have it playing on an entire 6-hour drive, played at high levels but it didn’t have any issues whatsoever. I have it hooked to my Kappa 62ix speakers and it sounds amazing!
This amp is one of the best purchases I’ve ever done. Very powerful despite its small design. Brought this to power up my 6.5” speakers.
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