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Vehicle Fit Guide — We check fitment of speakers and radios. We can help you find what fits. Choose your car by clicking here.

Minimize the chance of distortion at high volumes by installing a 4 channel amplifier on your door speakers. Our 4 channel amps are highly configurable. You can tune your system with ease with the built-in crossovers and other adjustable settings. Make your speakers soar with more power.

20 products

Free Shipping to Virginia

$79.99

Regular Price: $200.00

Save: $120.01 (60%)

Autotek

4 Channel amp

SS2500.4

Free Shipping to Virginia

$79.99

Regular Price: $240.00

Save: $160.01 (67%)

Free Shipping to Virginia

$149.99

Regular Price: $200.00

Save: $50.01 (25%)

Free Shipping to Virginia

$149.99

Regular Price: $200.00

Save: $50.01 (25%)

Free Shipping to Virginia

$169.99

Regular Price: $200.00

Save: $30.01 (15%)

Alpine

Universal Power Pack

KTP-445U

Free Shipping to Virginia

$189.95

Regular Price: $220.00

Save: $30.05 (14%)

Free Shipping to Virginia

$199.99

Regular Price: $230.00

Save: $30.01 (13%)

Kenwood

4 Channel Amplifier

X302-4

Free Shipping to Virginia

$199.99

Regular Price: $300.00

Save: $100.01 (33%)

Free Shipping to Virginia

$219.99

Regular Price: $260.00

Save: $40.01 (15%)

Rockford Fosgate

Prime 500 Watt 4-Channel Amplifier

R2-500X4

Free Shipping to Virginia

$249.99

Regular Price: $300.00

Save: $50.01 (17%)

Free Shipping to Virginia

$329.99

Free Shipping to Virginia

$349.99

Regular Price: $450.00

Save: $100.01 (22%)

Rockford Fosgate

400 Watt 4-Channel Amplifier

T400-4

Free Shipping to Virginia

$399.99

Free Shipping to Virginia

$399.99

Free Shipping to Virginia

$499.99

Rockford Fosgate

Power 600 Watt 4-Channel Amplifier

T600-4

Free Shipping to Virginia

$599.99

Regular Price: $650.00

Save: $50.01 (8%)

Free Shipping to Virginia

$719.99

Free Shipping to Virginia

$929.99

Free Shipping to Virginia

$949.99

Free Shipping to Virginia

$999.99

Regular Price: $1,200.00

Save: $200.01 (17%)