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Infinity KAPPA FIVE

1200W Max, Kappa Series 5-Channel Amplifier

In Stock. Only 2 Left!
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List price $599.95

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$259.99

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Bundled Savings with this Product

=

25% Off a 4 Gauge Amp Kit with Purchase!

Save 25% off the Belva BAK44 install kit, you will need an amp kit to install your amp, and this the perfect kit for your amp!

12.50

17416

292

Infinity KAPPA FIVE

$259.99

+

25% OFF

Belva BAK44

$49.99

Special Price $37.49 ($49.99 if purchased separately)

Belva BAK44

• Complete 4 Gauge 4-Channel Amplifier Installation Kit
• Designed Specifically For Car Audio Systems Up to 1000 Watts RMS
• Premium Power and Ground Wire Provides Optimal Power Transfer
• 30% Copper CCA Wire

(Offer 1 of 1)

Combined Total Price

$297.48

You Save $12.50

  • 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
  • 3-year Manufacturer's warranty

Power Specifications - Full Range Channels

RMS Power @ 4 ohms

The RMS power rating is the measure of continuous power that an amplifier can output, or a speaker can handle. It is the most accurate depiction of real, continuous power that the industry has so far.

If the final impedance of your speakers or subwoofers equals 4 ohms, this is how much power this amplifier will supply at that ohm level. The higher the RMS wattage, the more clean and loud your music will sound.

50 watts x 4 channels
RMS Power @ 2 ohms

The RMS power rating is the measure of continuous power that an amplifier can output, or a speaker can handle. It is the most accurate depiction of real, continuous power that the industry has so far.

If the final impedance of your speakers or subwoofers equals 2 ohms, this is how much power this amplifier will supply at that ohm level. The higher the RMS wattage, the more clean and loud your music will sound.

75 watts x 4 channels
Bridged RMS Power

Bridging refers to combining two channels on an amplifier to create one channel with double the voltage and an increased power output. A 2-channel amplifier will bridge down to 1-channel and a 4-channel amplifier can bridge to create 2-channels. An amplifier is most commonly bridged to drive a subwoofer.

Remember, once you bridge two channels down to one its final impedance will be 4 ohms unless otherwise specified. This rating lists the RMS power created once an amplifier is bridged.

150 watts x 2 channels
Peak Power Output
This form of power rating refers to the maximum amount of power an electronic device can handle or output in an instant without damage occurring. Often times this maximum is achieved during a brief musical burst, such as a drum accent, or low bass hit.

Some manufacturers display peak power ratings on the face of their products to increase the appeal to consumers. The RMS power rating is more accurate, and we recommend using it for product comparison.

150 watts x 4 channels

Power Specifications - Subwoofer Channel

RMS Power @ 4 ohms
The RMS power rating is the measure of continuous power that an amplifier can output, or a speaker can handle. It is the most accurate depiction of real, continuous power that the industry has so far. If the final impedance of your speaker(s) or subwoofer(s) equals 4 ohms, this is how much power this amplifier will supply at that ohm level. The higher the RMS wattage, the more clean and loud your music will sound. The 5th channel on these particular amplifiers are usually dedicated for driving subwoofers.
200 watts x 1 channels
RMS Power @ 2 ohms
The RMS power rating is the measure of continuous power that an amplifier can output, or a speaker can handle. It is the most accurate depiction of real, continuous power that the industry has so far. If the final impedance of your speaker(s) or subwoofer(s) equals 2 ohms, this is how much power this amplifier will supply at that ohm level. The higher the RMS wattage, the more clean and loud your music will sound. The 5th channel on these particular amplifiers are usually dedicated for driving subwoofers.
300 watts x 1 channels
RMS Power @ 1 ohm
The RMS power rating is the measure of continuous power that an amplifier can output, or a speaker can handle. It is the most accurate depiction of real, continuous power that the industry has so far. If the final impedance of your speaker(s) or subwoofer(s) equals 1 ohms, this is how much power this amplifier will supply at that ohm level. The higher the RMS wattage, the more clean and loud your music will sound. The 5th channel on these particular amplifiers are usually dedicated for driving subwoofers.
Not Stable
Peak Power Output
This form of power rating refers to the maximum amount of power an electronic device can handle or output in an instant without damage. Often times this maximum is achieved during a brief musical burst, such as a drum accent or low bass hit. Some manufacturers display peak power ratings on the face of their products to increase the appeal to consumers. The RMS power rating is more accurate, and we recommend using it for product comparison. This is the peak power output for the amplifier's 5th channel.
600 watts x 1 channels

Amplifier Specifications

Amplifier Series
This designates the series of the amplifier. Many amps are available in a litany of different wattage and channel configurations, but maintain consistent features throughout the product line.
Kappa (Infinity)
Amplifier Class

An amplifier increases the power of the signal being fed to it by taking energy from its power supply and matching the signal but increasing its amplitude. Amplifiers use many different methods for converting these electrical signals and have been categorized into classes.

Class A/B: Greater than 50% of the input signal is amplified while the other percentage is “off”. These amplifiers have a small amount of current flowing through the output transistors all the time which almost eliminates crossover distortion. Class A/B has great sound quality but is not as efficient as class D. These amps are most commonly used to drive speakers.

Class D: Also known as switching amplifiers, class D amps have output transistors that are completely turned “on” or “off”. This means that when the transistors are on, there is almost no voltage across them but when they are off there is significant voltage but no current flowing through it which makes these amplifiers very efficient at the cost of sound quality. These amps are most commonly used to drive subwoofers.

Other Classes: You may see classes such as GH, bD, X, FD, etc. by some manufactures. These amplifiers tend to be either class A/B, D or a hybrid of the two but with improvements to their designs that can make them more efficient or offer better sound quality.

D
Number of Channels
Each channel on an amplifier will power one speaker using a positive and negative cable. There are various types of amplifiers, each designed to power a certain number of speakers. Monoblock amplifiers, also known as single channel, are designed to power one or more subwoofers. These amplifiers often have very high power ratings. On the other hand, multi-channel amplifiers power multiple speakers, usually at lower power ratings. 2-Channel and 4-Channel amplifiers can power car speakers or low powered subwoofers. Occasionally you might see a 5 or 6-channel amplifier that can power speakers and subwoofers at the same time. The most common setup is a monoblock amp to run subwoofers and a 4-channel amp to run door speakers. Check out our Knowledge Base for more information.
5
Total Peak Power Output
The total peak power output is measured as the wattage per channel multiplied by the number of channels, and is calculated at the lowest level of operating impedance.

It is measured during a brief musical burst, such as a sudden drum accent. Some manufacturers display peak power ratings on the face of their products to increase the appeal.

The RMS power rating is more accurate, and we recommend using it for product comparison.

1200 watts
Total RMS Power Output
Total RMS power is measured by multiplying RMS power per channel by the number of channels, and is calculated at the lowest level of operating impedance.

RMS power is the amount of continuous power, measured in watts, that an amplifier produces is called RMS power. The higher the RMS figure, the louder and cleaner your music sounds.

The RMS output figure is much more accurate than the peak rating when comparing products.

300 watts
Maximum Input Gauge Size
This is the largest gauge wire that will fit into the power and ground terminals of this device. The lower the gauge number, the thicker the wire is. For example, a 4 gauge wire is thicker than an 8 gauge wire and thus has higher current carrying capacity. Always do your best to get this size wire to reduce the risk of damage to your components.
4 AWG
Minimum Impedance Unbridged
The lowest impedance the amplifier will handle when it is not bridged.
2 ohms
Minimum Impedance Bridged
The lowest impedance the amplifier will handle when it is bridged.
4 ohms
THD at Rated RMS Power
The amount of change in harmonic content of the signal as it is amplified. A lower figure indicates less change and a more accurate amp. THD below 0.10% is inaudible.
.1%
Speaker Level Inputs
Speaker level inputs are commonly referred to as high-level inputs and vice versa. This input type allows you to get your audio signal directly from the speaker wire in your vehicle, instead of using RCA cables. The advantage of this is factory integration, as most stock radios do not have RCA outputs to run amplifiers.
No
Preamp Outputs
Many amplifiers are equipped with RCA preamp outputs which pass the original music signal from the source to additional amplifiers. This is known as daisy chaining because the source connects to the first amp, and the first amp connects to the second amp, etc. The advantage to daisy chaining is you only need one 2-channel RCA cable to transfer the signal from the head-unit to the amplifier, and then one additional cable for each amp being daisy chained.
No
Built-in Crossover

A crossover is a type of filtering system that permits only certain frequencies to play. A Low-Pass (LP) crossover allows only frequencies below its setting to get through which is good in the case of some subwoofers. A High-Pass(HP) filter allows frequencies above its setting to pass through, this is normally used on speakers.

When a crossover is set to FULL it means no filtering is added and the full frequency spectrum is allowed through the amplifier. Filtering is important because feeding a speaker frequencies it cannot reproduce effectively creates distortion.

Low-pass (LP)
High-pass (HP)
Full (AP)
High-Pass Crossover Frequency
The high-pass crossover frequency can be a fixed crossover point or a variable crossover range. A variable high-pass crossover allows you to select a specific crossover point which allows frequencies above the set crossover point to pass, while making frequencies below the set point gently or harshly roll-off, depending on the steepness of the slope.

The steepness of the roll-off slope is measured in dB/octave and refers to the rate of attenuation (lowering of volume) outside their pass bands.

32 - 320 Hz
Low-Pass Crossover Frequency
The low-pass crossover frequency is typically used for subwoofers. It can be a fixed crossover point or a variable crossover range. A variable low-pass crossover allows you to select a specific crossover point which allows frequencies below the set crossover point to pass, while making frequencies above the set point gently or harshly roll-off, depending on the steepness of the slope.

The steepness of the roll-off slope is measured in dB/octave and refers to the rate of attenuation (lowering of volume) outside their pass bands.

32 - 320 Hz
Signal-to-Noise Ratio
This spec compares the strength of the signal to the level of background noise. A higher value indicates less background noise.
85 dB
Bass Boost
The objective of the bass boost is to get more kick out of your subwoofer. It is a circuit that emphasizes the lower frequencies at a given point. The bass boost should always be set first before setting the gain. This feature is known for destroying subwoofers and is commonly used incorrectly, so be cautious.
0 - 12 dB
Bass/Gain Remote
If the amp comes with a bass/gain remote you will be able to control the level of your bass from your dashboard. Typically bass remotes also include a 16-20 ft. wire for installation.
No
Fan Cooled
A great feature to have if an amp generates a large amount of heat. Cooling fans can help regulate the temperature to prevent the amp from overheating (burning).
No
Fuse Rating
The amperage and the number of fuse(s) an amp requires.
40A x 2 
CEA-2006 Compliant
Amplifiers that have been tested to meet specific standards. When a car amplifier meets these standards, you can be sure that it will be able to produce the amount of power specified by the official CEA-2006 rating. Usually, these rating consist of the following items:
  • RMS Power
  • Signal-to-Noise Ratio

This rating applies to both external car amplifiers, as well as the amplifiers inside of in-dash stereos.

Yes
Sonic Certified Amplifier
Sonic Certified amplifiers have been tested by the experts at Sonic Electronix to meet or exceed the wattage ratings provided by the manufacturer. If this is marked as Yes, then you can trust the wattage ratings. If marked as No, then we have tested the amplifier and it did not meet the advertised wattage ratings. If marked as Not Tested, then the Sonic Electronix experts have not yet been able to test the amp.

Warranty and Return Policy

Parts Warranty Duration
3 years
Labor Warranty Duration
3 years
Warranty Provider
Manufacturer

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
55%
4 Star
18%
3 Star
9%
2 Star
9%
1 Star
9%

Average Attribution Rating

Durability
4.0
Value
4.1
Features
4.5
Design
4.4
Usability
4.4
JR

Dallas, TX

Overall
Durability
Value
Features
Design
Usability
Loud, Cool, and Clean

April 21, 2010

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...

5 of 5 found this helpful

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Michael

Eagle Rock, MO

Overall
Durability
Value
Features
Design
Usability
Worked great until?

February 13, 2012

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.

2 of 2 found this helpful

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William

Orangevale, CA

Overall
Durability
Value
Features
Design
Usability
Infinity kappa 5

September 17, 2014

Excellent sound quality I would recommend to anyone product arrived as promised

0 of 0 found this helpful

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Bill Balaban

Camp Hill, PA

Overall
Durability
Value
Features
Design
Usability
CAN'T GET ENOUGH OF MY NEW KAPPA FIVE

July 28, 2014

I installed the Kappa Five on my sailboat in the main salon (it replaced my old Reference Series 5761a). It powers 4 sets of speakers throughout the boat (through separate Niles volume controls) and 2 subwoofers in the main Salon. Performance is absolutely superb (the water ripples abound the boat). The installation was clean & simple. The Sonic Electronix support staff guided me through the one question I had & they were just great. The only problem I have is I don't have enough time to spend on-board GUSTO II to enjoy my new Kappa Five. Thank you for a great product at a great price with outstanding customer support. Be assure that I will look to Sonic Electronix for all my future stereo needs.

0 of 0 found this helpful

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One Bass

Laredo, TX

Overall
Durability
Value
Features
Design
Usability
Finest sound quality

July 17, 2014

I have this amp for 4 months now, there I have connected a pair of Infinity Reference 6030cs and a pair of Infinity Kappa 62.9I, with an Alpine CDE-154BT, I started with a single Kicker TCVT82 (10TCVT82) and the bass was just OK, then I bought here another pair of Infinity Reference 1062W installed in a sealed box, with just one bass speaker was an amazing sound.... the sound is the best quality for the price, very good sound balance and quality, very good noise suppression.

0 of 0 found this helpful

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chad

Superior, WI

Overall
Durability
Value
Features
Design
Usability
HQ Amp

April 8, 2014

Not the loudest amp on the market but it certainly will give you high fidelity sound. If you want to have monster thump look elsewhere, if you want to have studio sound this is the amp

0 of 0 found this helpful

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Tony R

Long Island New York

Overall
Durability
Value
Features
Design
Usability
Infinity Cappa Five

September 9, 2012

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.

0 of 0 found this helpful

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Parker

Billings, Montana

Overall
Durability
Value
Features
Design
Usability
Output issues with the RCA's

January 25, 2012

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.

0 of 0 found this helpful

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Robert

Edmonds, WA

Overall
Durability
Value
Features
Design
Usability
Great Amp

April 4, 2011

Excellent 5 channel sound, very compact and even after an hour of hard use was only warm.

0 of 0 found this helpful

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Dimitrios

Abingdon, MD

Overall
Durability
Value
Features
Design
Usability
DOA

April 23, 2014

i bought this amp for my F150 there were certain features that i liked . Like tuning from the top side , amp came in DOA, upon hooking up it sparked like a stick welder , that was the first hint , then i turned amp on and it went into protect mode, and buzzing from speakers , i shot it off and it never came back on , might have been good but i dont have time to keep swapping amps to see witch one works and for how long , i was afraid for a minute it might have blown my speaker all new including sub, including correct wiring, sonix has been very good they did take it back but i did not up for the same amp, i went Kicker CX600.5, A/B-D tech , same foot print , and i believe more reliable but did not get it yet when i do i will right a review. This Infinity amp is a great value and has lots of features but based on my experience durability would be the most important aspect , excluding sound quality that is also at the top of the tier.

0 of 1 found this helpful

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Bartman9

Seattle

Overall
Durability
Value
Features
Design
Usability
Safety Issue - not yet installed

February 12, 2010

The power and speaker connectors are not insulated. They are exposed and stick out significantly from the amp. The power connector sticks out at least one inch with the 4/0 AWG adapter. I don't have to tell anyone what would happen if a metal object were to contact the power connectors. Yes, the power wire is fused with a 100 amp fuse, but there will still be a lot of sparks on the way up to 100 amps, and some damage.

The other amps I've seen have insulated power and speaker connections. The Kappa Five will require me to fabricate some type of insulating cover to protect all the exposed (and hot) connectors.

Wish I would have paid better attention to that before ordering. My bad. This amp may work well for your installation, but be warned about the exposed connectors and take appropriate action to protect it.

I'll post a further review of operation & reliability if I decide to keep it, if that's possible.

Maybe it doesn't matter so much, but I'm a former aircraft electrician for 20 years in the Navy. I've seen plenty of sparks fly with a lot less current. If I keep this amp, you can bet those connectors will be shielded, and good.

The "2" rating for the design is for the connector issue alone. With insulated connectors, I would give the design a five and bump the other ratings up at least one point.

0 of 2 found this helpful

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Product Summary

Manufacturer

Model Number

KAPPA FIVE

UPC

050667034771

Weight

9.00lbs

Internal SKU

kappafive

Internal Product ID

17416

Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: Infinity KAPPA FIVE

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