Best Infinity Car Amplifiers In September 2026

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Looking for some of the Best Infinity Car Amplifiers? As you may know, there are dozens of similar products out there and some come with vastly different price tags. Let us help you out here – we have handpicked for you the Best Infinity Car Amplifiers.

To help you in your search, we have completed this list of the Best Infinity Car Amplifiers.

Top Rated Best Infinity Car Amplifiers Of 2026

Rank	Product Name	Score
1	Infinity PRIMUS-6002A Primus 2-Channel, 50w X 2 amplifier Buy Now	9.7 Buy Now
2	Infinity REF-704A 1000 W Peak (400W RMS) Reference Series 4-Channel Amplifier Buy Now	9.5 Buy Now
3	Infinity Primus 6004a Compact 4-Channel car Amplifier — 60 watts RMS x 4 Buy Now	9.1 Buy Now
4	Infinity Reference 551a 550W x 1 Car Amplifier Buy Now	8.8 Buy Now
5	JBL CLUB-704 1000W Peak (400W RMS) Club Series 4-Channel Amplifier Buy Now	8.6 Buy Now
6	Infinity REF-704A 1000W Reference Series 4-Channel Amplifier with 4 Channel Amp Kit Buy Now	8.3 Buy Now
7	Infinity Kappa One 6 600W x 1 Car Amplifier Buy Now	8.1 Buy Now
8	Infinity K5 75W x 4 + 350W x 1 Car Amplifier Buy Now	7.8 Buy Now
9	Infinity REF4555A 760-watt 5-channel Amplifier Buy Now	7.5 Buy Now
10	Infinity K4 100W x 4 Car Amplifier Buy Now	7.2 Buy Now

1. Infinity PRIMUS-6002A Primus 2-Channel, 50w X 2 amplifier

2. Infinity REF-704A 1000 W Peak (400W RMS) Reference Series 4-Channel Amplifier

• Signal-to-noise ratio 85db
• Power output, 2 100w rms x 4, / power output, 4 70w rms x 4
• Max power1000w peak
• Power output, 4 bridged 200w rms x 2

3. Infinity Primus 6004a Compact 4-Channel car Amplifier — 60 watts RMS x 4

• Variable bass boost (0-12 db at 45 hz)
• Preamp and speaker-level inputs
• 4-channel car amplifier 60 watts rms x 4 at 4 ohms (70 watts rms x 4 at 2 ohms) 140 watts rms x 2 in bridged mode (4-ohm stable in bridged mode)
• Variable high- and low-pass filters (32-320 hz, 12 db/octave)

4. Infinity Reference 551a 550W x 1 Car Amplifier

• Variable bass boost: 0 to +9 db
• Total peak power: 1300 watts
• 550 watts rms x 1 @ 2 ohms
• 370 watts rms x 1 @ 4 ohms
• Heavy duty aluminum alloy heat-sink for extreme heat dissipation

5. JBL CLUB-704 1000W Peak (400W RMS) Club Series 4-Channel Amplifier

• 100 watts rms x 4 @ 2 ohms
• 200 watts rms bridged x 2 @ 4 ohm
• Total peak power: 1000 watts
• Slim chassis provides more flexible mounting options
• 70 watts rms x 4 @ 4 ohms

6. Infinity REF-704A 1000W Reference Series 4-Channel Amplifier with 4 Channel Amp Kit

• Package: infinity ref-704a amplifier + complete 4 channel amplifier kit + free mobile holder
• 200 watts rms x 2 at 4 ohms in bridged mode (4-ohm stable in bridged mode)
• 70 watts rms x 4 at 4 ohms (100 watts rms x 4 at 2 ohms)
• Complete 4 channels 2500w 4 gauge amplifier installation wiring kit
• Ref-704a: reference series 4-channel class d amplifier

7. Infinity Kappa One 6 600W x 1 Car Amplifier

• Dynamic bass optimizer
• 380 watts rms x 1 at 4 ohms
• Preamp and speaker-level inputs

8. Infinity K5 75W x 4 + 350W x 1 Car Amplifier

• 75 watts rms x 4 @ 4 ohm
• 200 watts rms x 2 @ 4 ohm bridged
• 100 watts rms x 4 @ 2 ohm
• 2 ohms: 350 watts x 1 chan.
• Subwoofer channel: 4 ohms: 200 watts x 1 chan.

9. Infinity REF4555A 760-watt 5-channel Amplifier

• Rms power rating: 4 ohms: 45 watts x 4 chan. + 320 watts x 1 chan. 2 ohms: 65 watts x 4 chan. + 500 watts x 1 chan. 1 ohm: ------------n/a------------
• Total power output: 1800 watts
• Dimensions: 15-11/16"w x 7-5/16"d x 2-1/4"h
• Pulse width modulated mosfet power supply
• Ref-4555a - infinity 5-channel 760w rms reference series amplifier

10. Infinity K4 100W x 4 Car Amplifier