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  1. Home
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  3. Discontinued Infinity Car Audio & Electronics
  4. Discontinued Infinity Car Amplifiers
  5. Discontinued Infinity All Car Amplifiers

Discontinued All Infinity Car Amplifiers

With Infinity All Car Amplifiers, enjoy robust power and clear sound.

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Amplifiers,
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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.
Amplifier Key Features
Amplifiers can offer a diverse array of features. If you select more than one feature, then you will view amplifiers that have ALL features selected. These include speaker-level inputs that facilitate seamless integration with factory audio systems, Bluetooth connectivity suitable for ATV/UTV or Classic vehicle setups, built-in DSPs that provide enhanced control over your audio signal, and a host of other functionalities to explore.
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.
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.
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.
Series
Many brands group their products into series or lines of products to help customers know the level of quality (good, better, best for example). You can filter by series and the brand using our guided browsing.
Minimum Impedance Unbridged
The lowest impedance the amplifier will handle when it is not bridged.
Minimum Impedance Bridged
The lowest impedance the amplifier will handle when it is bridged.
Remote bass/level controller
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 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.
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.
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.

Amp Bluetooth Connectivity
This feature will tell you if the amplifier has the capability to connect to a Bluetooth device.
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Infinity Primus 6002a

280W Peak (140W RMS) Primus Series Class-D 2-Channel Amplifier

Primus 6002A-3 big DISCONTINUED
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Infinity Primus 6002a

280W Peak (140W RMS) Primus Series Class-D 2-Channel Amplifier

• 60 watts x 2 channel @ 4 ohm
• 70 watts x 2 channel @ 2 ohm
• Bridged: 140 watts x 1 channel @ 4 ohm
• Total RMS Power: 140 watts
• Class D 2 ohm Stable 2-Channel-Channel Amplifier

1

• 60 watts x 2 channel @ 4 ohm
• 70 watts x 2 channel @ 2 ohm
• Bridged: 140 watts x 1 channel @ 4 ohm
• Total RMS Power: 140 watts
• Class D 2 ohm Stable 2-Channel-Channel Amplifier

Infinity Kappa One K (KAPPAONEKAM)

2600W Peak (1000W RMS) Kappa Series Class-D Monoblock Amplifier with Bass Remote

Kappa One K-2 big DISCONTINUED
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Infinity Kappa One K (KAPPAONEKAM)

2600W Peak (1000W RMS) Kappa Series Class-D Monoblock Amplifier with Bass Remote

• 700 watts x 1 channel @ 4 ohm
• 1000 watts x 1 channel @ 2 ohm
• Total RMS Power: 1000 watts
• Class D 2 ohm Stable Monoblock Amplifier

6

• 700 watts x 1 channel @ 4 ohm
• 1000 watts x 1 channel @ 2 ohm
• Total RMS Power: 1000 watts
• Class D 2 ohm Stable Monoblock Amplifier

Infinity Primus 3000a

600W Peak (300W RMS) Primus Series Class-D Monoblock Amplifier

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Infinity Primus 3000a

600W Peak (300W RMS) Primus Series Class-D Monoblock Amplifier

• 300 watts x 1 channel @ 2 ohm
• Total RMS Power: 300 watts
• Class D 2 ohm Stable Monoblock Amplifier

• 300 watts x 1 channel @ 2 ohm
• Total RMS Power: 300 watts
• Class D 2 ohm Stable Monoblock Amplifier

Infinity Kappa K1000 Monoblock Amplifier

2600W Peak (700W RMS) High Performance Kappa Series Class-D Monoblock 2-Ohm Stable Car Subwoofer Amplifier

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Infinity Kappa K1000 Monoblock Amplifier

2600W Peak (700W RMS) High Performance Kappa Series Class-D Monoblock 2-Ohm Stable Car Subwoofer Amplifier

• 700 Watts RMS x 1 @ 4 ohm
• 1000 Watts RMS x 1 @ 2 ohm
• Total Peak Power: 2600 Watts
• Variable low-pass filter: 32 - 320 Hz
• Sleek, brushed steel industrial design
• Upgradable Firmware via the microUSB port
• Speaker-level (high-level) inputs

• 700 Watts RMS x 1 @ 4 ohm
• 1000 Watts RMS x 1 @ 2 ohm
• Total Peak Power: 2600 Watts
• Variable low-pass filter: 32 - 320 Hz
• Sleek, brushed steel industrial design
• Upgradable Firmware via the microUSB port
• Speaker-level (high-level) inputs

Infinity Reference 704A

1000W Peak (400W RMS) Reference Series 4-Channel Amplifier

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Infinity Reference 704A

1000W Peak (400W RMS) Reference Series 4-Channel Amplifier

• 70 Watts RMS x 4 @ 4 ohm
• 100 Watts RMS x 4 @ 2 ohm
• Total Peak Power: 1000 Watts
• Variable Bass Boost: 0 to +9 dB
• Heavy duty aluminum alloy heat-sink for extreme heat dissipation
• Frequency Response: 32 - 320 Hz

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• 70 Watts RMS x 4 @ 4 ohm
• 100 Watts RMS x 4 @ 2 ohm
• Total Peak Power: 1000 Watts
• Variable Bass Boost: 0 to +9 dB
• Heavy duty aluminum alloy heat-sink for extreme heat dissipation
• Frequency Response: 32 - 320 Hz

Infinity Kappa K2 Amplifier with Clari-fi Technology

700W Peak (240W RMS) High Performance Kappa Series Class-D 2-Channel Amplifier with Bluetooth and Clari-Fi Technology

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Infinity Kappa K2 Amplifier with Clari-fi Technology

700W Peak (240W RMS) High Performance Kappa Series Class-D 2-Channel Amplifier with Bluetooth and Clari-Fi Technology

• 100 Watts RMS x 2 @ 4 ohm
• 120 Watts RMS x 2 @ 2 ohm
• 240 Watts RMS x 1 @ 4 ohm Bridged
• Total Peak Power: 700 Watts
• Bluetooth Streaming
• Clari-fi Technology
• Wired control panel
• Signal to Noise Ration: >75dB

• 100 Watts RMS x 2 @ 4 ohm
• 120 Watts RMS x 2 @ 2 ohm
• 240 Watts RMS x 1 @ 4 ohm Bridged
• Total Peak Power: 700 Watts
• Bluetooth Streaming
• Clari-fi Technology
• Wired control panel
• Signal to Noise Ration: >75dB

Infinity Kappa K600

1500W Peak (600W RMS) High Performance Kappa Series Class-D Monoblock 2-Ohm Stable Car Subwoofer Amplifier

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Infinity Kappa K600

1500W Peak (600W RMS) High Performance Kappa Series Class-D Monoblock 2-Ohm Stable Car Subwoofer Amplifier

• 380 Watts RMS x 1 @ 4 ohm
• 600 Watts RMS x 1 @ 2 ohm
• Total Peak Power: 1500 Watts
• Variable low-pass filter: 32 - 320 Hz
• Sleek, brushed steel industrial design
• Upgradable Firmware via the microUSB port
• Speaker-level (high-level) inputs

• 380 Watts RMS x 1 @ 4 ohm
• 600 Watts RMS x 1 @ 2 ohm
• Total Peak Power: 1500 Watts
• Variable low-pass filter: 32 - 320 Hz
• Sleek, brushed steel industrial design
• Upgradable Firmware via the microUSB port
• Speaker-level (high-level) inputs

Infinity Kappa K5 Car Amplifier with Bluetooth and Clari-fi Technology

2300W Peak (750W RMS) Bluetoooth High Performance Kappa Series Class-D 5-Channel 2-Ohm Stable Amplifier and Clari-Fi Technology

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Infinity Kappa K5 Car Amplifier with Bluetooth and Clari-fi Technology

2300W Peak (750W RMS) Bluetoooth High Performance Kappa Series Class-D 5-Channel 2-Ohm Stable Amplifier and Clari-Fi Technology

• 75 Watts RMS x 4 @ 4 ohm
• 100 Watts RMS x 4 @ 2 ohm
• 200 Watts RMS x 2 @ 4 ohm Bridged
• Subwoofer Channel: 4 ohm: 200 watts x 1 chan.
• 2 ohm: 350 watts x 1 chan.
• Total Peak Power: 1500 Watts
• Bluetooth Streaming
• Clari-fi Technology
• Wired control panel
• Speaker-level (high-level) inputs

2

• 75 Watts RMS x 4 @ 4 ohm
• 100 Watts RMS x 4 @ 2 ohm
• 200 Watts RMS x 2 @ 4 ohm Bridged
• Subwoofer Channel: 4 ohm: 200 watts x 1 chan.
• 2 ohm: 350 watts x 1 chan.
• Total Peak Power: 1500 Watts
• Bluetooth Streaming
• Clari-fi Technology
• Wired control panel
• Speaker-level (high-level) inputs

Infinity Reference 551A (REF-551A)

1300W Max (550W RMS) Reference Series Class-D Monoblock 2 Ohm Stable Amplifier with High Level Input Adapters Included

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Infinity Reference 551A (REF-551A)

1300W Max (550W RMS) Reference Series Class-D Monoblock 2 Ohm Stable Amplifier with High Level Input Adapters Included

• 370 Watts RMS x 1 @ 4 ohm
• 550 Watts RMS x 1 @ 2 ohm
• Total Peak Power: 1300 Watts
• Variable Bass Boost: 0 to +9 dB
• Heavy duty aluminum alloy heat-sink for extreme heat dissipation
• Frequency Response: 32 - 320 Hz

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• 370 Watts RMS x 1 @ 4 ohm
• 550 Watts RMS x 1 @ 2 ohm
• Total Peak Power: 1300 Watts
• Variable Bass Boost: 0 to +9 dB
• Heavy duty aluminum alloy heat-sink for extreme heat dissipation
• Frequency Response: 32 - 320 Hz

Infinity Kappa K4 Amplifier with Clari-fi Technology

1500W Peak (480W RMS) High Performance Kappa Series Class-D 4-Channel 2-Ohm Stable Amplifier with Bluetooth and Clari-Fi Technology

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Infinity Kappa K4 Amplifier with Clari-fi Technology

1500W Peak (480W RMS) High Performance Kappa Series Class-D 4-Channel 2-Ohm Stable Amplifier with Bluetooth and Clari-Fi Technology

• 100 Watts RMS x 4 @ 4 ohm
• 120 Watts RMS x 4 @ 2 ohm
• 240 Watts RMS x 2 @ 4 ohm Bridged
• Total Peak Power: 1500 Watts
• Bluetooth Streaming
• Clari-fi Technology
• Wired control panel
• Speaker-level (high-level) inputs

• 100 Watts RMS x 4 @ 4 ohm
• 120 Watts RMS x 4 @ 2 ohm
• 240 Watts RMS x 2 @ 4 ohm Bridged
• Total Peak Power: 1500 Watts
• Bluetooth Streaming
• Clari-fi Technology
• Wired control panel
• Speaker-level (high-level) inputs

Infinity Reference 1300a

342W Max, Reference Series Class D Monoblock Amplifier

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Infinity Reference 1300a

342W Max, Reference Series Class D Monoblock Amplifier

• RMS: 200W x 1 @ 4 ohm, 300W x 1 @ 2 ohm
• Total RMS Power: 300W
• CEA-2006 Compliant
• Bass Boost: 0-6 dB
• Class D Circuitry
• Dimensions: 14-3/4"L x 9"W x 2-11/16H

13

• RMS: 200W x 1 @ 4 ohm, 300W x 1 @ 2 ohm
• Total RMS Power: 300W
• CEA-2006 Compliant
• Bass Boost: 0-6 dB
• Class D Circuitry
• Dimensions: 14-3/4"L x 9"W x 2-11/16H

Infinity KAPPA 600 AMPLIFIER

600W RMS Class-D Monoblock Car Amplifier

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Infinity KAPPA 600 AMPLIFIER

600W RMS Class-D Monoblock Car Amplifier

• 380 watts x 1 channel @ 4 ohm
• 600 watts x 1 channel @ 2 ohm
• Total RMS Power: 380 watts
• Class D 2 ohm Stable Monoblock Amplifier

• 380 watts x 1 channel @ 4 ohm
• 600 watts x 1 channel @ 2 ohm
• Total RMS Power: 380 watts
• Class D 2 ohm Stable Monoblock Amplifier

Infinity K2 Amplifier with Clari-fi Technology (Open Box)

700W Peak (240W RMS) High Performance Kappa Series Class-D 2-Channel 2-Ohm Stable Amplifier with Bluetooth and Clari-Fi Technology

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Infinity K2 Amplifier with Clari-fi Technology (Open Box)

700W Peak (240W RMS) High Performance Kappa Series Class-D 2-Channel 2-Ohm Stable Amplifier with Bluetooth and Clari-Fi Technology

• Item Condition: Like New Open Box
• 100 Watts RMS x 2 @ 4 ohm
• 120 Watts RMS x 2 @ 2 ohm
• 240 Watts RMS x 1 @ 4 ohm Bridged
• Total Peak Power: 700 Watts
• Bluetooth Streaming
• Clari-fi Technology
• Wired control panel
• Speaker-level (high-level) inputs

• Item Condition: Like New Open Box
• 100 Watts RMS x 2 @ 4 ohm
• 120 Watts RMS x 2 @ 2 ohm
• 240 Watts RMS x 1 @ 4 ohm Bridged
• Total Peak Power: 700 Watts
• Bluetooth Streaming
• Clari-fi Technology
• Wired control panel
• Speaker-level (high-level) inputs

Infinity Kappa One 6 (KAPPAONE6AM)

1500W Peak (600W RMS) Class D Kappa Series Monoblock Car Amplifier with Bass Remote

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Infinity Kappa One 6 (KAPPAONE6AM)

1500W Peak (600W RMS) Class D Kappa Series Monoblock Car Amplifier with Bass Remote

• 380 watts x 1 channel @ 4 ohm
• 600 watts x 1 channel @ 2 ohm
• Total RMS Power: 600 watts
• Class D 2 ohm Stable Monoblock Amplifier

6

• 380 watts x 1 channel @ 4 ohm
• 600 watts x 1 channel @ 2 ohm
• Total RMS Power: 600 watts
• Class D 2 ohm Stable Monoblock Amplifier

Infinity Reference 4555A (REF-4555A)

1800W Peak (760W RMS) Reference Series 5-Channel Amplifier

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Infinity Reference 4555A (REF-4555A)

1800W Peak (760W RMS) Reference Series 5-Channel Amplifier

• 45 Watts RMS x 4 + 320 Watts x 1 @ 4 ohm
• 65 Watts RMS x 2 + 500 Watts x 1 @ 2 ohm
• Total Peak Power: 1800 Watts
• Variable Bass Boost: 0 to +9 dB
• Heavy duty aluminum alloy heat-sink for extreme heat dissipation
• Frequency Response: 32 - 320 Hz

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VIP Product Get $30.00 in rewards to spend later

• 45 Watts RMS x 4 + 320 Watts x 1 @ 4 ohm
• 65 Watts RMS x 2 + 500 Watts x 1 @ 2 ohm
• Total Peak Power: 1800 Watts
• Variable Bass Boost: 0 to +9 dB
• Heavy duty aluminum alloy heat-sink for extreme heat dissipation
• Frequency Response: 32 - 320 Hz

Infinity KAPPA ONE

1600W Max, Kappa Series Class D Mono Subwoofer Amplifier

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Infinity KAPPA ONE

1600W Max, Kappa Series Class D Mono Subwoofer Amplifier

• RMS: 500 x 1 @ 4 ohm, 800W x 1 @ 2 ohm
• Total Peak Power: 1600W
• CEA-2006 Compliant
• Bass Boost: 0 - 12 dB
• Non-Stop Thermal Protection
• Dimensions: 13"L x 7-1/16W x 1-3/4H

15

• RMS: 500 x 1 @ 4 ohm, 800W x 1 @ 2 ohm
• Total Peak Power: 1600W
• CEA-2006 Compliant
• Bass Boost: 0 - 12 dB
• Non-Stop Thermal Protection
• Dimensions: 13"L x 7-1/16W x 1-3/4H

** DO NOT USE - DUPLICATE ** Infinity KAPPA FIVE AM

1200W Max, Kappa Series 5-Channel Class D Car Amplifier

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** DO NOT USE - DUPLICATE ** Infinity KAPPA FIVE AM

1200W Max, Kappa Series 5-Channel Class D Car Amplifier

• Full-Range RMS: 50W x 4 @ 4 ohm, 75W x 4 @ 2 ohm
• Subwoofer RMS: 200W x 1 @ 4 ohm, 300W x 1 @ 2 ohm
• CEA-2006 Compliant
• 12 dB Per Octave Crossovers
• Differential Signal Inputs
• Dimensions: 14-3/16"L x 7-1/16"W x 1-3/4"H

• Full-Range RMS: 50W x 4 @ 4 ohm, 75W x 4 @ 2 ohm
• Subwoofer RMS: 200W x 1 @ 4 ohm, 300W x 1 @ 2 ohm
• CEA-2006 Compliant
• 12 dB Per Octave Crossovers
• Differential Signal Inputs
• Dimensions: 14-3/16"L x 7-1/16"W x 1-3/4"H

Infinity PRIMUS 6002A Open Box

280W Max (140W RMS) Primus Series 4 ohm Stable 2-Channel Class-D Amplifier

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Infinity PRIMUS 6002A Open Box

280W Max (140W RMS) Primus Series 4 ohm Stable 2-Channel Class-D Amplifier

• 60 Watts RMS x 2 @ 4 ohm
• 70 Watts RMS x 2 @ 2 ohm
• Total Peak Power: 280 Watts
• HPF/LPF/FPF
• 0 to +12 dB Bass Boost
• Heavy duty aluminum alloy heat-sink
• 12.3" x 7.4" x 3.74"

• 60 Watts RMS x 2 @ 4 ohm
• 70 Watts RMS x 2 @ 2 ohm
• Total Peak Power: 280 Watts
• HPF/LPF/FPF
• 0 to +12 dB Bass Boost
• Heavy duty aluminum alloy heat-sink
• 12.3" x 7.4" x 3.74"

Infinity Reference 4555A

1800W Peak (760W RMS) Reference Series 5-Channel Amplifier

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Infinity Reference 4555A

1800W Peak (760W RMS) Reference Series 5-Channel Amplifier

• 45 Watts RMS x 4 + 320 Watts x 1 @ 4 ohm
• 65 Watts RMS x 2 + 500 Watts x 1 @ 2 ohm
• Total Peak Power: 1800 Watts
• Variable Bass Boost: 0 to +9 dB
• Heavy duty aluminum alloy heat-sink for extreme heat dissipation
• Frequency Response: 32 - 320 Hz

6

• 45 Watts RMS x 4 + 320 Watts x 1 @ 4 ohm
• 65 Watts RMS x 2 + 500 Watts x 1 @ 2 ohm
• Total Peak Power: 1800 Watts
• Variable Bass Boost: 0 to +9 dB
• Heavy duty aluminum alloy heat-sink for extreme heat dissipation
• Frequency Response: 32 - 320 Hz

Infinity KAPPA 4 AMPLIFIER

240W RMS Class-D 4-Channel Car Amplifier

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Infinity KAPPA 4 AMPLIFIER

240W RMS Class-D 4-Channel Car Amplifier

• 100 watts x 4 channel @ 4 ohm
• 120 watts x 4 channel @ 2 ohm
• Bridged: 240 watts x 2 channel @ 4 ohm
• Total RMS Power: 120 watts
• Class D 2 ohm Stable 4-Channel Amplifier

• 100 watts x 4 channel @ 4 ohm
• 120 watts x 4 channel @ 2 ohm
• Bridged: 240 watts x 2 channel @ 4 ohm
• Total RMS Power: 120 watts
• Class D 2 ohm Stable 4-Channel Amplifier

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    Infinity All Car Amplifiers Information

    All car amplifiers from Infinity are built from highly durable materials and with quality in mind. With various power ratings and max power output, Infinity has a wide array of options to suit your system. When thinking of car amplifiers, think Infinity.
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