Infinity Monoblock Amplifiers at Sonic Electronix
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Infinity Monoblock Amplifiers

Infinity has many years of car audio and monoblock amplifier experience.
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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.

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.
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.
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.
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.
The lowest impedance the amplifier will handle when it is not bridged.
The lowest impedance the amplifier will handle when it is bridged.
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.
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.
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.

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.

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.
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.
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.
This feature will tell you if the amplifier has the capability to connect to a Bluetooth device.
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Infinity Kappa One 6

600W Class D Monoblock Subwoofer Amplifier

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Infinity Kappa One 6

600W Class D Monoblock Subwoofer Amplifier

• Peak Power: 1500 watts x 1 chan
• 4 ohms: 380 watts x 1 chan.
• 2 ohms: 600 watts x 1 chan.
• Frequency Response: 10 - 320 Hz
• Variable Bass Boost: 0 to +12 dB bass boost at 50 Hz

Infinity Kappa One 6

600W Class D Monoblock Subwoofer Amplifier

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$489.95 (48.98% off)
$249.99
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600W Class D Monoblock Subwoofer Amplifier

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Belva Amp Kit + 2.0 Farad Capacitor

Complete 0/1 Gauge Amplifier Wiring Kit + 2.0 Farad Capacitor

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NVX XLCA2

2 Channel Line Out Converter with xBOOST & 3-year warranty*!

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Infinity Reference AMPRF10001AAM

Reference Series 1000 Watts RMS Monoblock Class-D Amplifier

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Infinity Reference AMPRF10001AAM

Reference Series 1000 Watts RMS Monoblock Class-D Amplifier

• 600 Watts RMS x 1 @ 4 ohms
• 1000 Watts RMS x 1 @ 2 ohms
• Total Peak Power: 2000 Watts
• Preamp Outputs/LPF
• Variable Bass Boost
• 12-5/8"W x 2-3/16"D x 7-1/8"H

Infinity Reference AMPRF10001AAM

Reference Series 1000 Watts RMS Monoblock Class-D Amplifier

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$499.99 (30.01% off)
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Reference Series 1000 Watts RMS Monoblock Class-D Amplifier

$349.95

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NVX XKIT42 100% OFC True 4 Gauge Wiring Kit with RCA Cables and Speaker Wire

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NVX XLCA2

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Infinity KAPPA ONE 6

600W Class D Monoblock Subwoofer Amplifier

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Infinity KAPPA ONE 6

600W Class D Monoblock Subwoofer Amplifier

• Infinity KAPPAONE6 Class-D Mono Amplifier
• Peak Power Output: 1500 watts x 1 chan
• 4 ohms: 380 watts x 1 chan.
• 2 ohms: 600 watts x 1 chan.
• Frequency Response: 10 - 320 Hz
• Variable Bass Boost: 0 to +12 dB bass boost at 50 Hz
• Fuse Rating: 35 A x 2
• 10-1/4"W x 6/15/16"D x 1-3/4"H

Infinity KAPPA ONE 6

600W Class D Monoblock Subwoofer Amplifier

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$399.95 (37.50% off)
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600W Class D Monoblock Subwoofer Amplifier

$249.95

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Belva Amp Kit + 2.0 Farad Capacitor

Complete 0/1 Gauge Amplifier Wiring Kit + 2.0 Farad Capacitor

$74.94

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NVX XLCA2

2 Channel Line Out Converter with xBOOST & 3-year warranty*!

$89.99

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Infinity Reference 6001A

600W Reference Series Class D Monoblock Car Subwoofer Amplifier

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Infinity Reference 6001A

600W Reference Series Class D Monoblock Car Subwoofer Amplifier

• 350 Watts RMS x 1 @ 4 ohms
• 600 Watts RMS x 1 @ 2 ohms
• CEA-2006 Compliant/Preamp Outputs/LPF
• Low-profile chassis and a small overall footprint
• Speaker-level and low-level inputs allow the Reference 6001A to integrate with both aftermarket and factory car stereo systems
• Dimensions: 8-5/8" W x 7" D x 2-1/4" H

Infinity Reference 6001A

600W Reference Series Class D Monoblock Car Subwoofer Amplifier

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$319.95 (15.63% off)
$269.95
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600W Reference Series Class D Monoblock Car Subwoofer Amplifier

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Belva BAK82

Complete 8 Gauge Amplifier Wiring Kit with 2-Channel RCA Interconnects

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Infinity KAPPA ONE 6 + Free Belva Amplifier Kit

600W Class D Monoblock Subwoofer Amplifier

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Infinity KAPPA ONE 6 + Free Belva Amplifier Kit

600W Class D Monoblock Subwoofer Amplifier

• Infinity KAPPAONE6 Class-D Mono Amplifier
• Peak Power Output: 1500 watts x 1 chan
• 4 ohms: 380 watts x 1 chan.
• 2 ohms: 600 watts x 1 chan.
• Frequency Response: 10 - 320 Hz
• Variable Bass Boost: 0 to +12 dB bass boost at 50 Hz
• Fuse Rating: 35 A x 2
• 10-1/4"W x 6/15/16"D x 1-3/4"H

30
Infinity KAPPA ONE 6 + Free Belva Amplifier Kit

600W Class D Monoblock Subwoofer Amplifier

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$449.94 (43.34% off)
$254.95
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KAPPA ONE 6, BAK42 small

600W Class D Monoblock Subwoofer Amplifier

$254.95

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NVX XBG3PK Big 3 Kit with True 0 Gauge 100% Oxygen-Free Copper

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Infinity Reference 1001A (AMPRF1001AAM)

Reference Series High Performance Monoblock Subwoofer Amplifier

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Infinity Reference 1001A (AMPRF1001AAM)

Reference Series High Performance Monoblock Subwoofer Amplifier

• Monoblock Amplifier
• 4 Ohms: 600 Watts RMS x 1
• 2 Ohms: 1000 Watts RMS x 1
• Wired Remote Level Control
• Turn-On Mode Switch
• Strappable Amplifier

Infinity Reference 1001A (AMPRF1001AAM)

Reference Series High Performance Monoblock Subwoofer Amplifier

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$399.00 (12.29% off)
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Reference Series High Performance Monoblock Subwoofer Amplifier

$349.95

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Belva 1.0 Farad Capacitor + Amp Kit

BB1D 1.0 Farad Capacitor + BAK42BK Complete 4 Gauge Amplifier Wiring Kit

$54.99

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NVX Universal Remote Level Bass Control

Controls bass level and frequency via RCA/Interconnect connectors on any amp.

$9.99

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NVX XLCA2

2 Channel Line Out Converter with xBOOST & 3-year warranty*!

$89.99

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Infinity Reference 10001A

1000W Reference Series Class D Monoblock Car Subwoofer Amplifier

Reference 10001A main
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Infinity Reference 10001A

1000W Reference Series Class D Monoblock Car Subwoofer Amplifier

• 600 Watts RMS x 1 @ 4 ohms
• 1000 Watts RMS x 1 @ 2 ohms
• CEA-2006 Compliant/Preamp Outputs/LPF
• Low-profile chassis and a small overall footprint
• Speaker-level and low-level inputs allow the Reference 6001A to integrate with both aftermarket and factory car stereo systems
• Dimensions: 8-5/8" W x 7" D x 2-1/4" H

Infinity Reference 10001A

1000W Reference Series Class D Monoblock Car Subwoofer Amplifier

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$469.95 (8.51% off)
$429.95
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Reference 10001A small

1000W Reference Series Class D Monoblock Car Subwoofer Amplifier

$429.95

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Belva 1.0 Farad Capacitor + Amp Kit

BB1D 1.0 Farad Capacitor + BAK42BK Complete 4 Gauge Amplifier Wiring Kit

$54.99

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NVX XLCA2

2 Channel Line Out Converter with xBOOST & 3-year warranty*!

$89.99

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AudioControl Epicenter-InDash

If you want the best bass possible and a way to measure how loud your system is playing

$249.99

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Don't see the accessory you're looking for?
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Infinity Kappa One 6 + High Quality NVX Amp Kit

600W Class D Monoblock Subwoofer Amplifier + NVX XKIT42

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Infinity Kappa One 6 + High Quality NVX Amp Kit

600W Class D Monoblock Subwoofer Amplifier + NVX XKIT42

• Peak Power: 1500 watts x 1 chan
• 4 ohms: 380 watts x 1 chan.
• 2 ohms: 600 watts x 1 chan.
• Frequency Response: 10 - 320 Hz
• Variable Bass Boost: 0 to +12 dB bass boost at 50 Hz

78
Infinity Kappa One 6 + High Quality NVX Amp Kit

600W Class D Monoblock Subwoofer Amplifier + NVX XKIT42

In stock

$604.94 (50.41% off)
$299.99
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KAPPAONE6AM, XKIT42 small

600W Class D Monoblock Subwoofer Amplifier + NVX XKIT42

$299.99

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NVX XBG3PK Big 3 Kit with True 0 Gauge 100% Oxygen-Free Copper

1/0 AWG Big 3 Upgrade Kit with 100% OFC Wire for Audio Sytems up to 350 Amps

$99.99

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Infinity Reference AMPRF10001AAM + High Quality NVX Amp Kit

Reference Series 1000 Watts RMS Monoblock Class-D Amplifier

amprf10001aam, XKIT42 main
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Infinity Reference AMPRF10001AAM + High Quality NVX Amp Kit

Reference Series 1000 Watts RMS Monoblock Class-D Amplifier

• 600 Watts RMS x 1 @ 4 ohms
• 1000 Watts RMS x 1 @ 2 ohms
• Total Peak Power: 2000 Watts
• Preamp Outputs/LPF
• Variable Bass Boost
• 12-5/8"W x 2-3/16"D x 7-1/8"H

78
Infinity Reference AMPRF10001AAM + High Quality NVX Amp Kit

Reference Series 1000 Watts RMS Monoblock Class-D Amplifier

In stock

Only 1 Left!

$614.98 (34.97% off)
$399.95
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amprf10001aam, XKIT42 small

Reference Series 1000 Watts RMS Monoblock Class-D Amplifier

$399.95

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NVX XBG3PK Big 3 Kit with True 0 Gauge 100% Oxygen-Free Copper

1/0 AWG Big 3 Upgrade Kit with 100% OFC Wire for Audio Sytems up to 350 Amps

$99.99

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Don't see the accessory you're looking for?
View all available accessories for the Infinity Reference AMPRF10001AAM + High Quality NVX Amp Kit.
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Infinity KAPPA One K

1000W RMS Class D Monoblock Car Subwoofer Amplifier

KAPPAONEKAM main
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Infinity KAPPA One K

1000W RMS Class D Monoblock Car Subwoofer Amplifier

• Infinity KAPPA One K Class-D Mono Amplifier
• Peak Power Output: 2600 watts x 1 chan.
• 4 ohms: 700 watts x 1 chan.
• 2 ohms: 1000 watts x 1 chan.
• Frequency Response: 10 - 320 Hz
• Variable Bass Boost: 0 to +12 dB bass boost
• Fuse Rating: 35 A x 3
• 13-1/8"W x 7"D x 1-3/4"H

Infinity KAPPA One K

1000W RMS Class D Monoblock Car Subwoofer Amplifier

OUT OF STOCK

$549.00 (36.26% off)
Vip Icon $349.95
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KAPPAONEKAM small

1000W RMS Class D Monoblock Car Subwoofer Amplifier

$349.95

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Belva Amp Kit + 2.0 Farad Capacitor

Complete 0/1 Gauge Amplifier Wiring Kit + 2.0 Farad Capacitor

$74.94

Add
FREE NVX XMountPro Cell Phone Mount with Select Orders

Spend $200 and use code XMOUNTPRO to get this free!.

$14.99

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NVX XLCA2

2 Channel Line Out Converter with xBOOST & 3-year warranty*!

$89.99

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Infinity KAPPA One K + High Quality NVX Amp Kit

1000W RMS Class D Monoblock Car Subwoofer Amplifier

KAPPAONEKAM, XKIT42 main
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Infinity KAPPA One K + High Quality NVX Amp Kit

1000W RMS Class D Monoblock Car Subwoofer Amplifier

• Infinity KAPPA One K Class-D Mono Amplifier
• Peak Power Output: 2600 watts x 1 chan.
• 4 ohms: 700 watts x 1 chan.
• 2 ohms: 1000 watts x 1 chan.
• Frequency Response: 10 - 320 Hz
• Variable Bass Boost: 0 to +12 dB bass boost
• Fuse Rating: 35 A x 3
• 13-1/8"W x 7"D x 1-3/4"H

78
Infinity KAPPA One K + High Quality NVX Amp Kit

1000W RMS Class D Monoblock Car Subwoofer Amplifier

OUT OF STOCK

$663.99 (39.77% off)
$399.95
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KAPPAONEKAM, XKIT42 small

1000W RMS Class D Monoblock Car Subwoofer Amplifier

$399.95

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NVX XBG3PK Big 3 Kit with True 0 Gauge 100% Oxygen-Free Copper

1/0 AWG Big 3 Upgrade Kit with 100% OFC Wire for Audio Sytems up to 350 Amps

$99.99

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Don't see the accessory you're looking for?
View all available accessories for the Infinity KAPPA One K + High Quality NVX Amp Kit.
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Infinity AMPRF6001AAM

High Performance MonoBlock Subwoofer Amplifier

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Infinity AMPRF6001AAM

High Performance MonoBlock Subwoofer Amplifier

• Class D Amplifier
• 4 Ohms: 350 Watts RMS x 1
• 2 Ohms: 600 Watts RMS x 1
• Variable Low-Pass Filter
• Phase Switch

Infinity AMPRF6001AAM

High Performance MonoBlock Subwoofer Amplifier

OUT OF STOCK

$319.00 (15.38% off)
Vip Icon $269.95
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AMPRF6001AAM small

High Performance MonoBlock Subwoofer Amplifier

$269.95

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Belva BAK82

Complete 8 Gauge Amplifier Wiring Kit with 2-Channel RCA Interconnects

$29.99

Add
NVX XLCA2

2 Channel Line Out Converter with xBOOST & 3-year warranty*!

$89.99

Add
AudioControl Epicenter-InDash

If you want the best bass possible and a way to measure how loud your system is playing

$249.99

Add
Don't see the accessory you're looking for?
View all available accessories for the Infinity AMPRF6001AAM.
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Infinity KAPPA One K Amplifier + Free $100 Gift Card

1000W RMS Class D Monoblock Car Subwoofer Amplifier

KAPPAONEKAM, 100EGIFT main
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Infinity KAPPA One K Amplifier + Free $100 Gift Card

1000W RMS Class D Monoblock Car Subwoofer Amplifier

• Infinity KAPPA One K Class-D Mono Amplifier
• Peak Power Output: 2600 watts x 1 chan.
• 4 ohms: 700 watts x 1 chan.
• 2 ohms: 1000 watts x 1 chan.
• Frequency Response: 10 - 320 Hz
• Variable Bass Boost: 0 to +12 dB bass boost
• Fuse Rating: 35 A x 3
• 13-1/8"W x 7"D x 1-3/4"H

5
Infinity KAPPA One K Amplifier + Free $100 Gift Card

1000W RMS Class D Monoblock Car Subwoofer Amplifier

OUT OF STOCK

$649.00 (46.08% off)
$349.95
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KAPPAONEKAM, 100EGIFT small

1000W RMS Class D Monoblock Car Subwoofer Amplifier

$349.95

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FREE NVX XMountPro Cell Phone Mount with Select Orders

Spend $200 and use code XMOUNTPRO to get this free!.

$14.99

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NVX XWS1625 16 AWG Speaker Wire

25 ft. of True 16 Gauge 100% Copper EnvyFlex Speaker Cable/Wire

$19.99

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NVX XBG3PK 1/0 Gauge OFC Big 3 Upgrade Kit

Comes with everything you need to upgrade your power and ground wire.

$99.99

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View all available accessories for the Infinity KAPPA One K Amplifier + Free $100 Gift Card.
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Infinity Monoblock Amplifiers Information

The Infinity monoblock amplifiers are designed for efficient power output. These amps take up little space and feature high quality platinum finished connections, and solid power ratings. You won't be disappointed with your Infinity monoblock amplifier for your vehicle's needs.
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