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Car Amplifiers

Find a full selection of car amplifiers at Best Buy. Choose from 2-channel amps, mono subwoofer amps, and multi-channel amps to help you crank your tunes. Add professional Geek Squad installation to make sure you get everything set up and installed right with no hassle.

Car Amplifier Q & A

Technically, no. Every car stereo on the market has a built-in amplifier to drive the speakers in the vehicle. However, if you want to add power to create a louder, clearer sound, adding an external amp to your system is the way to do it.

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It all depends on the number of channels (speakers) you need to power. If you want to drive 4 speakers, you'll need a 4-channel amp. For more speakers, you need more channels. Choose from mono amps that power one driver, or multi-channel amps that power up to 5.

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An Easy Upgrade to Your Car Audio

Improve the quality of your car audio without modifying your factory stereo setup. Upgrade your speakers and add a 5-channel amp and a subwoofer to enhance your existing system.

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Kicker - CX Series 300W Class D Mono Amplifier with Variable Low-Pass Crossover

Model: 12CX3001
SKU: 7707052
FIT (Fail-Safe Integration Technology); adjustable KickEQ bass boost; balanced differential inputs; compact footprint
Customer Reviews: 4.7 of 5 4.7 of 5 (29 reviews)
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Alpine - Power Pack 180W Class D Bridgeable Multichannel Amplifier with High-Pass Filter

Model: KTP-445U
SKU: 4769803
Variable 12dB/Oct high-pass crossover; RCA and auto sensing speaker-level connectors
Customer Reviews: 4.8 of 5 4.8 of 5 (44 reviews)
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Alpine - 500W Class D Digital Mono Amplifier with Low-Pass Crossover

Model: MRV-M500
SKU: 7551285
Bass EQ and bass boost; variable 50-200Hz low-pass-filter crossover; enhanced shut-down performance; compact design; line-level and speaker-level inputs
Customer Reviews: 4.8 of 5 4.8 of 5 (40 reviews)
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Kicker - CX Series CX600.1 1200W Class D Mono Amplifier with Adjustable KickEQ Bass Boost

Model: 12CX6001
SKU: 7739051
Variable low-pass-filter crossover; fixed subsonic high-pass filter; FIT (Fail-Safe Integration Technology); DC offset and 12V remote auto turn-on modes
Customer Reviews: 4.8 of 5 4.8 of 5 (29 reviews)
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Pioneer - 1600W Class D Digital Mono MOSFET Amplifier with Wired Bass Boost Remote

Model: GM-D8601
SKU: 7456388
Protection Control System circuitry; variable 40-240Hz LPF crossover; 0-18dB bass boost; 2-channel RCA and speaker level inputs; RCA pass-through outputs
Customer Reviews: 4.5 of 5 4.5 of 5 (15 reviews)
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Kenwood - 1000W Class D Mono Amplifier with Variable Low-Pass Crossover

Model: KAC-5001PS
SKU: 7501245
Variable 50-200Hz low-pass-filter crossover; +18dB bass boost @ 40Hz; fan-cooled design; compact size; line-level input
Customer Reviews: 4.5 of 5 4.5 of 5 (19 reviews)
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Kicker - CX Series 1200W Class D Mono Amplifier with Variable Low-Pass Crossover

Model: 12CX12001
SKU: 7706044
FIT (Fail-Safe Integration Technology); adjustable KickEQ bass boost; balanced differential inputs; compact footprint
Customer Reviews: 4.9 of 5 4.9 of 5 (21 reviews)
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Kicker - CX-Series CX300.4 600W Class AB Bridgeable Multichannel Amplifier with Built-In Crossovers

Model: 12CX3004
SKU: 7945059
FIT (Fail-Safe Integration Technology); DC offset and 12V remote auto turn-on modes; low-pass-filter and high-pass-filter crossovers; adjustable KickEQ
Customer Reviews: 5.0 of 5 5.0 of 5 (4 reviews)
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Sale: $142.49

Reg. Price: $189.99

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Polk Audio - 300W Class AB Bridgeable 2-Channel MOSFET Amplifier with Switchable Bass Boost

Model: PA 330
SKU: 1007107
Selectable high or low-pass crossover; variable input gain; switchable 3-position bass boost
Customer Reviews: 4.7 of 5 4.7 of 5 (15 reviews)
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Kenwood - Sports Car Amplifier - 500 W PMPO - 4 Channel - Class AB

Model: KAC-2404S
SKU: 2823229
Bridgeable - 10 Kilo Ohm - 95 dB SNR - 1% THD - 5 Hz to 50 kHz - MOSFET Power Supply - 40 W @ 4 Ohm
Customer Reviews: 4.5 of 5 4.5 of 5 (4 reviews)
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Kenwood - Power Pack 180W Class AB Multichannel Amplifier with Full-Range Crossover

Model: KAC-M1804
SKU: 3935019
Conformal coating; Molex cover; line- and speaker-level inputs
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Alpine - 300W Class D Bridgeable Multichannel Amplifier with Variable Crossover

Model: MRV-F300
SKU: 7551337
Bass EQ and bass boost; variable 50-400Hz high-pass, low-pass and full-range crossover; tri-mode; snap-on terminal covers; line-level and 4-channel speaker-level inputs
Customer Reviews: 4.8 of 5 4.8 of 5 (12 reviews)
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Sale: $187.49

Reg. Price: $249.99

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Polk Audio - 600W Class AB Bridgeable 4-Channel MOSFET Amplifier with Switchable Bass Boost

Model: PA 660
SKU: 1007116
Selectable high or low-pass crossover; variable input gain; switchable 3-position bass boost
Customer Reviews: 4.5 of 5 4.5 of 5 (28 reviews)
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Sale: $187.49

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Polk Audio - Monoblock 800W Class AB MOSFET Amplifier with Variable Crossovers

Model: PA880
SKU: 9985266
Variable 50-500Hz crossover; bass boost; 6-way Smart System Protection circuits
Customer Reviews: 4.5 of 5 4.5 of 5 (24 reviews)
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Hifonics - Zeus Series 2400W Class AB Bridgeable Multichannel MOSFET Amplifier with Variable Crossovers

Model: ZRX600.4
SKU: 1585432
Ultri-Fi MOSFET design; Super A/B Class amplifier topology; tri-mode; diagnostic indicator LEDs; 1-piece aluminum heat sink; SPC toroid design
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