Infinity KAPPA-FIVE: main picture thumbnail Infinity KAPPA-FIVE: alternate picture thumbnail Infinity KAPPA-FIVE: alternate picture thumbnail Infinity KAPPA-FIVE: alternate picture thumbnail Infinity KAPPA-FIVE: alternate picture thumbnail

Infinity KAPPA FIVE

1200W Max, Kappa Series 5-Channel Amplifier

  • 4.0

(6 reviews)

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Price Information

$599.95

–$309.96

$289.99

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Why Shop Sonic?

Find the right amplifier for your subwoofers
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Customer Testimonial

Awesome service, very quick response to questions, and very patient. Thanks for all the help, Sonic!

- Joseph C. from Bellingham, WA

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  • Kappa Series 5-Channel Class D Car Amplifier
  • RMS Power Rating:
    • 4 ohms: 50 watts x 4 chan. + 200 watts x 1 chan.
    • 2 ohms: 75 watts x 4 chan. + 300 watts x 1 chan.
    • Bridged, 4 ohms: 150 watts x 2 chan. + 200 watts x 1 chan.
  • Max power output: 1200 watts
  • MOSFET power supply
  • DirectFET technology transistors
  • 3 LED indicators (2 power, 1 protect)
  • Bass Boost (0-12 dB bass boost)
  • 5/4/3 Channel operation
  • Dynamic Bass Optimization (DBO): Fine-tune the bass in your system to optimize performance. The frequency control also acts as a subsonic filter
  • Protection Circuitry (DC output, over/under voltage, short circuit)
  • Non-Stop Thermal Protection (The amplifier will gradually reduce output to cool the amplifier down instead of shutting it off if it overheats)
  • Variable high-pass filter (32-320 Hz, 12 dB/octave)
  • Variable low-pass filter (32-320 Hz, 12 dB/octave)
  • CEA-2006 compliant amplifier
  • Frequency response(Full Range): 10-75,000 Hz
  • Frequency response(Subwoofer): 20-320 Hz
  • Dimensions: 14-3/16"L x 7-1/16"W x 1-3/4"H
  • 4-gauge power and ground wiring is required for installation. Contact us for information regarding a discount on select amplifier kits when purchased together with this amplifier.
  • Authorized Internet Dealer
  • 1-year Manufacturer's warranty

Sonic Electronix, Inc. can only ship Infinity products within the United States of America.

Power Specifications - Full Range Channels
RMS Power @ 4 ohms 50 watts x 4 channels
RMS Power @ 2 ohms 75 watts x 4 channels
Bridged RMS Power 150 watts x 2 channels
Peak Power Output 150 watts x 4 channels
Power Specifications - Subwoofer Channel
RMS Power @ 4 ohms 200 watts x 1 channels
RMS Power @ 2 ohms 300 watts x 1 channels
RMS Power @ 1 ohm Not Stable
Peak Power Output 600 watts x 1 channels
Amplifier Specifications
Amplifier Class D
Number of Channels 5
Total Peak Power Output 1200 watts
Total RMS Power Output 600 watts
Maximum Input Gauge Size 4 AWG
Minimum Impedance Unbridged 2 ohms
Minimum Impedance Bridged 4 ohms
THD at Rated RMS Power .1%
Speaker Level Inputs No
Preamp Outputs No
Built-in Crossover Low-pass (LP)
High-pass (HP)
Full (AP)
High-Pass Crossover Frequency 32 - 320 Hz
Low-Pass Crossover Frequency 32 - 320 Hz
Signal-to-Noise Ratio 85 dB
Bass Boost 0 - 12 dB
Bass/Gain Remote No
Fan Cooled No
Fuse Rating 40A x 2 
CEA-2006 Compliant Yes
Warranty and Return Policy
Return Policy Standard Return Policy
Parts Warranty Duration 1 year
Labor Warranty Duration 1 year
Warranty Provider Manufacturer
Customer Review Summary for Infinity KAPPA FIVE
Average Customer Rating is 4.0 out of 5 stars:
  • 4.0
based on 6 Reviews
Share your thoughts with others:
Rating Distribution:
5 star:
.
.
50%
4 star:
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.
17%
3 star:
.
.
17%
2 star:
.
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17%
1 star:
.
0%
what's this?
Average Attributes Rating:
Durability
  • 4.2
4.2
Value
  • 4.3
4.3
Features
  • 4.5
4.5
Design
  • 4.2
4.2
Usability
  • 4.2
4.2
what's this?
Quick Comparison:
Most Helpful Customer Reviews:
April 21, 2010 Loud, Cool, and Clean
4 of 4 people found the following review helpful:
Review by
JR from Dallas, TX
Overall
  • 5.0
Durability
  • 5.0
Value
  • 5.0
Features
  • 5.0
Design
  • 5.0
Usability
  • 5.0
Pros: Class D (Runs Cool), Small, Clean, Powerful. Louder than you can stand and no distortion. Good built-in crossover with DBO.



Cons: Cops apparently don't like your stereo to be louder than their sirens...



Opinion: Everyone thinks their equipment is the best and after spending so much time researching all the different models I can say I am very happy with my amp. Infinity gear is top notch, they are geared toward accurate music reproduction and true fidelity. This amp is a perfect match for the Kappa speakers as they are 2 ohm.



Notes: Another review stated that the power terminals are unprotected...Not true, they are encased in clear plastic and are not a risk for sparking.



Equip: JVC KW-AVX820, Kappa Five, Kappa 693.9i, Kappa 60.9cs, 2 Farad Cap... Haven't decided on the Sub...
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February 13, 2012 Worked great until?
2 of 2 people found the following review helpful:
Review by
Michael from Eagle Rock, MO
Overall
  • 5.0
Durability
  • 3.0
Value
  • 5.0
Features
  • 5.0
Design
  • 5.0
Usability
  • 5.0
I have 2 of these units that i bought 10 months ago. One is in my car and the other in my son's car. Mine is still working great and his went out causing the speakers to squil. He was always adjusting his (teenager) but he did know what he was doing. I got mine set the way I like it and had no issues.

We are running kappa 4oms speakers/sub with a rockford head. Make sure that you put spacers (1/4" min) between the unit and what you are mounting it to or it will overheat. The techs with Sonic helped me order the system and helped me with hook up. So far with the return of my son's amp they have been very courteous and helpful. I havent recieved the replacement yet. So this review may change if it doesn't go smoothly. Overall i would recommend the whole Kappa line.
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September 9, 2012 Infinity Cappa Five
Review by
Tony R from Long Island New York
Overall
  • 5.0
Durability
  • 5.0
Value
  • 5.0
Features
  • 5.0
Design
  • 4.0
Usability
  • 4.0
Best Bang for your money, does the job quit well, I have for 4 months and performs flawless. When I listen load music it runs hot but no problems.
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January 25, 2012 Output issues with the RCA's
Review by
Parker from Billings, Montana
Overall
  • 2.0
Durability
  • 5.0
Value
  • 3.0
Features
  • 4.0
Design
  • 5.0
Usability
  • 4.0
The build quality of the amp is excellent. I may have just got a defective item. 2 of the channels for the speakers do not put out their full potential power. I have tried switching rca's and I even bought a new deck and new speakers because I thought the outputs were messed up on my Panasonic deck. Come to find out, putting all of that new equipment in did nothing. It has been the amp the whole time. But who would have known? It's a "new" amp. The two channels that actually worked sounded great paired with some rockford T1 components. I would suggest this amp if you can get one that works.
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April 4, 2011 Great Amp
Review by
Robert from Edmonds, WA
Overall
  • 4.0
Durability
  • 4.0
Value
  • 4.0
Features
  • 4.0
Design
  • 4.0
Usability
  • 4.0
Excellent 5 channel sound, very compact and even after an hour of hard use was only warm.
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View All 6 Reviews for Infinity KAPPA FIVE
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Speaker Wire
Improve the sound quality by delivering more power when replacing your factory wiring. High quality speaker will maximize your amplifier investment and system performance.
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RCA Interconnects
You will need a good set of RCA interconnect cables to connect your amplifier to your head unit. Using high quality cables ensure the best sound possible by reducing unwanted noise interference, providing tight contacts, and utilizing the latest in cable technology.
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Installation, Tools & Accessories
With our professional install card, you can have your amp installed by a pro near you, or you can purchase tools and do the install yourself.
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$7.99
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Professional Installation for your Car Power Amplifier Professional Installation for your Car Power Amplifier
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Testing and Performance
Optimize your system's performance with testing tools such as SPL meters, bass test discs and more!
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AutoSound 2000 CD-104 AutoSound 2000 CD-104
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AutoSound 2000 CD-102 AutoSound 2000 CD-102
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Main Product
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Infinity KAPPA-FIVE Infinity KAPPA FIVE $289.99

Product Summary

Manufacturer: Infinity
Model number: KAPPA-FIVE
UPC: 050667034771
Weight: 9.00 lbs
Internal SKU: kappafive
Internal product ID: 17416