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$254.96
Kicker KMA360.4 KMA Series 4-Channel Marine Amplifier - 65 Watts RMS X 4
Crutchfield
17
$254.96
Kicker KMA360.4 KMA Series 4-Channel Marine Amplifier - 65 Watts RMS X 4
Crutchfield
17
$299.99
JL Audio JD400/4 JD Series 4-Channel Car Amplifier - 75 Watts RMS X 4
Crutchfield
7
$299.99
JL Audio JD400/4 JD Series 4-Channel Car Amplifier - 75 Watts RMS X 4
Crutchfield
7
$219.99
$269.99
Pioneer - 4-Channel Class D Amplifier - Black
Best Buy
58
Free shipping
18% off
$219.99
$269.99
Pioneer - 4-Channel Class D Amplifier - Black
Best Buy
58
$254.99
$299.99
KICKER - Compact All-Weather 4-Channel Amplifier 45 Watts RMS X 4 - Black
Best Buy
7
Free shipping
15% off
$254.99
$299.99
KICKER - Compact All-Weather 4-Channel Amplifier 45 Watts RMS X 4 - Black
Best Buy
7
$239.95
Alpine S2-A36F S-Series 4-Channel Car Amplifier - 60 Watts RMS X 4
Crutchfield
$239.95
Alpine S2-A36F S-Series 4-Channel Car Amplifier - 60 Watts RMS X 4
Crutchfield
$679.99
JL Audio XDM400/4 4-Channel Car/Marine Amplifier - 75 Watts RMS X 4
Crutchfield
$679.99
JL Audio XDM400/4 4-Channel Car/Marine Amplifier - 75 Watts RMS X 4
Crutchfield
$349.99
Fusion MS-AM504 4-Channel Marine Amplifier - 65 Watts RMS X 4 At 4 Ohms
Crutchfield
46
$349.99
Fusion MS-AM504 4-Channel Marine Amplifier - 65 Watts RMS X 4 At 4 Ohms
Crutchfield
46
$269.95
Alpine KTA-450 Power Pack Compact 4-Channel Car Amplifier - 50 Watts RMS X 4
Crutchfield
311
$269.95
Alpine KTA-450 Power Pack Compact 4-Channel Car Amplifier - 50 Watts RMS X 4
Crutchfield
311
$379.99
JL Audio MX280/4 Compact Marine/Powersports 4-Channel Amplifier - 50 Watts RMS X 4
Crutchfield
42
$379.99
JL Audio MX280/4 Compact Marine/Powersports 4-Channel Amplifier - 50 Watts RMS X 4
Crutchfield
42
$529.95
MTX MA400.4 4-Channel Marine Amplifier - 50 Watts RMS X 4 At 4 Ohms
Crutchfield
$529.95
MTX MA400.4 4-Channel Marine Amplifier - 50 Watts RMS X 4 At 4 Ohms
Crutchfield
$399.96
Kicker 48KXMA500.4 KXMA Series 4-Channel Marine Amplifier - 75 Watts RMS X 4
Crutchfield
1
$399.96
Kicker 48KXMA500.4 KXMA Series 4-Channel Marine Amplifier - 75 Watts RMS X 4
Crutchfield
1
$499.99
OSD HTX-4150 4-Channel Home Theater Amplifier
Crutchfield
8
$499.99
OSD HTX-4150 4-Channel Home Theater Amplifier
Crutchfield
8
$699.95
MTX MA800.4 4-Channel Marine Amplifier - 100 Watts RMS X 4 At 4 Ohms
Crutchfield
$699.95
MTX MA800.4 4-Channel Marine Amplifier - 100 Watts RMS X 4 At 4 Ohms
Crutchfield
$6,000.00
Mcintosh MI254 4-Channel Power Amplifier
Crutchfield
$6,000.00
Mcintosh MI254 4-Channel Power Amplifier
Crutchfield
$499.99
Wet Sounds STX Micro 4 Compact Marine/Powersports 4-Channel Amplifier - 80 Watts RMS X 4
Crutchfield
4
$499.99
Wet Sounds STX Micro 4 Compact Marine/Powersports 4-Channel Amplifier - 80 Watts RMS X 4
Crutchfield
4
$158.00
Sony XMS400D Compact 4-Channel Car Amplifier - 45 Watts RMS X 4
Crutchfield
96
$158.00
Sony XMS400D Compact 4-Channel Car Amplifier - 45 Watts RMS X 4
Crutchfield
96
$529.99
JL Audio MX500/4 Compact Marine/Powersports 4-Channel Amplifier - 70 Watts RMS X 4
Crutchfield
25
$529.99
JL Audio MX500/4 Compact Marine/Powersports 4-Channel Amplifier - 70 Watts RMS X 4
Crutchfield
25
$229.00
Behringer EPQ304 75-Watt 4-Channel Power Amplifier 4-Channel Power Amplifier, 75W Peak/Ch At 4 Ohms, With Built-In Limiters, Accelerated Transient
Sweetwater
$229.00
Behringer EPQ304 75-Watt 4-Channel Power Amplifier 4-Channel Power Amplifier, 75W Peak/Ch At 4 Ohms, With Built-In Limiters, Accelerated Transient
Sweetwater
$399.99
Soundextreme AMP30041 4-Channel All-Weather Amplifier - 75 Watts RMS X 4
Crutchfield
$399.99
Soundextreme AMP30041 4-Channel All-Weather Amplifier - 75 Watts RMS X 4
Crutchfield
$349.95
Infinity Marine M3004A 4-Channel Marine Amplifier - 75 Watts RMS X 4
Crutchfield
1
$349.95
Infinity Marine M3004A 4-Channel Marine Amplifier - 75 Watts RMS X 4
Crutchfield
1
$729.99
Wet Sounds HTM-4 4-Channel Marine Amplifier - 85 Watts RMS X 4
Crutchfield
$729.99
Wet Sounds HTM-4 4-Channel Marine Amplifier - 85 Watts RMS X 4
Crutchfield
$424.96
Kicker 48PXA400.4 4-Channel Powersports/Marine Amplifier - 100 Watts RMS X 4
Crutchfield
2
$424.96
Kicker 48PXA400.4 4-Channel Powersports/Marine Amplifier - 100 Watts RMS X 4
Crutchfield
2
$689.99
Rockford Fosgate M5-800X4 M5 Series Marine 4-Channel Amplifier - 100 Watts RMS X 4
Crutchfield
5
$689.99
Rockford Fosgate M5-800X4 M5 Series Marine 4-Channel Amplifier - 100 Watts RMS X 4
Crutchfield
5
$289.00
Audiocontrol ACX-300.4 4-Channel Powersports/Marine Amplifier - 50 Watts RMS X 4
Crutchfield
2
$289.00
Audiocontrol ACX-300.4 4-Channel Powersports/Marine Amplifier - 50 Watts RMS X 4
Crutchfield
2
$89.99
ART Splitmix4 Passive 4-Channel Mixer / Splitter 4-Channel Passive Mixer With 4 Stereo 1/4" Input Channels And 1 Stereo 1/4" Output Channel With
Sweetwater
36
$89.99
ART Splitmix4 Passive 4-Channel Mixer / Splitter 4-Channel Passive Mixer With 4 Stereo 1/4" Input Channels And 1 Stereo 1/4" Output Channel With
Sweetwater
36
$469.99
Sundown Audio Saev4-150.4 600W 4-Channel Amplifier
mooncarstereo
$469.99
Sundown Audio Saev4-150.4 600W 4-Channel Amplifier
mooncarstereo
$289.99
Sundown Audio SFB-200.4 V2 4-Channel Full Range Amplifier
mooncarstereo
$289.99
Sundown Audio SFB-200.4 V2 4-Channel Full Range Amplifier
mooncarstereo
$579.99
Sundown Audio SFB-1000.4 4-Channel Full Range Amplifier
mooncarstereo
$579.99
Sundown Audio SFB-1000.4 4-Channel Full Range Amplifier
mooncarstereo
$99.99
Samson QH4 4-Channel Headphone Amplifier (Restock)
Amazon.com
187
Free shipping
$99.99
Samson QH4 4-Channel Headphone Amplifier (Restock)
Amazon.com
187
$178.99
Presonus HP4 4-Channel Compact Headphone Amplifier
Amazon.com
368
Free shipping
$178.99
Presonus HP4 4-Channel Compact Headphone Amplifier
Amazon.com
368
$119.95
Orion Cobalt Series CBA2500.4 High Efficiency 4-Channel Class A/B Amplifier For Car Audio Stereo - 2500W High Output, 2/4 Ohm Stable, Adjustable Low/
Amazon.com
551
Free shipping
$119.95
Orion Cobalt Series CBA2500.4 High Efficiency 4-Channel Class A/B Amplifier For Car Audio Stereo - 2500W High Output, 2/4 Ohm Stable, Adjustable Low/
Amazon.com
551
$409.95
JBL Apex PA1254 4 Channel Amplifier Class D 1250W Peak
Citimarine
1
$409.95
JBL Apex PA1254 4 Channel Amplifier Class D 1250W Peak
Citimarine
1
$164.95
Rockville RPA40BT 1000W 4 Zone/Channel Home Stereo Bluetooth Amplifier Receiver
Rockville Audio
1
Free shipping
$164.95
Rockville RPA40BT 1000W 4 Zone/Channel Home Stereo Bluetooth Amplifier Receiver
Rockville Audio
1
$749.00
Fusion Apollo MS-AP41200 4CH. Amplifier, 1200 W | By West Marine
WestMarine
1
Free shipping
$749.00
Fusion Apollo MS-AP41200 4CH. Amplifier, 1200 W | By West Marine
WestMarine
1
$6,398.43
Atlas Dna2404ch Digital 4Ch Power Amp Cobranet 600Ch. 100V 240Vac
AValive
Free shipping
$6,398.43
Atlas Dna2404ch Digital 4Ch Power Amp Cobranet 600Ch. 100V 240Vac
AValive
Free shipping
$689.99
Rockford Fosgate M5-800X4 Marine Amplifier 800W Class-D 4-Channel Amp
RecPro
94
$689.99
Rockford Fosgate M5-800X4 Marine Amplifier 800W Class-D 4-Channel Amp
RecPro
94
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    Shop 4CH Amplifier

    Sponsored
    About our ads
    $254.96
    Kicker KMA360.4 KMA Series 4-Channel Marine Amplifier - 65 Watts RMS X 4
    Crutchfield
    17
    $254.96
    Kicker KMA360.4 KMA Series 4-Channel Marine Amplifier - 65 Watts RMS X 4
    Crutchfield
    17
    $299.99
    JL Audio JD400/4 JD Series 4-Channel Car Amplifier - 75 Watts RMS X 4
    Crutchfield
    7
    $299.99
    JL Audio JD400/4 JD Series 4-Channel Car Amplifier - 75 Watts RMS X 4
    Crutchfield
    7
    $219.99
    $269.99
    Pioneer - 4-Channel Class D Amplifier - Black
    Best Buy
    58
    Free shipping
    18% off
    $219.99
    $269.99
    Pioneer - 4-Channel Class D Amplifier - Black
    Best Buy
    58
    $254.99
    $299.99
    KICKER - Compact All-Weather 4-Channel Amplifier 45 Watts RMS X 4 - Black
    Best Buy
    7
    Free shipping
    15% off
    $254.99
    $299.99
    KICKER - Compact All-Weather 4-Channel Amplifier 45 Watts RMS X 4 - Black
    Best Buy
    7
    $239.95
    Alpine S2-A36F S-Series 4-Channel Car Amplifier - 60 Watts RMS X 4
    Crutchfield
    $239.95
    Alpine S2-A36F S-Series 4-Channel Car Amplifier - 60 Watts RMS X 4
    Crutchfield
    $679.99
    JL Audio XDM400/4 4-Channel Car/Marine Amplifier - 75 Watts RMS X 4
    Crutchfield
    $679.99
    JL Audio XDM400/4 4-Channel Car/Marine Amplifier - 75 Watts RMS X 4
    Crutchfield
    $349.99
    Fusion MS-AM504 4-Channel Marine Amplifier - 65 Watts RMS X 4 At 4 Ohms
    Crutchfield
    46
    $349.99
    Fusion MS-AM504 4-Channel Marine Amplifier - 65 Watts RMS X 4 At 4 Ohms
    Crutchfield
    46
    $269.95
    Alpine KTA-450 Power Pack Compact 4-Channel Car Amplifier - 50 Watts RMS X 4
    Crutchfield
    311
    $269.95
    Alpine KTA-450 Power Pack Compact 4-Channel Car Amplifier - 50 Watts RMS X 4
    Crutchfield
    311
    $379.99
    JL Audio MX280/4 Compact Marine/Powersports 4-Channel Amplifier - 50 Watts RMS X 4
    Crutchfield
    42
    $379.99
    JL Audio MX280/4 Compact Marine/Powersports 4-Channel Amplifier - 50 Watts RMS X 4
    Crutchfield
    42
    $529.95
    MTX MA400.4 4-Channel Marine Amplifier - 50 Watts RMS X 4 At 4 Ohms
    Crutchfield
    $529.95
    MTX MA400.4 4-Channel Marine Amplifier - 50 Watts RMS X 4 At 4 Ohms
    Crutchfield
    $399.96
    Kicker 48KXMA500.4 KXMA Series 4-Channel Marine Amplifier - 75 Watts RMS X 4
    Crutchfield
    1
    $399.96
    Kicker 48KXMA500.4 KXMA Series 4-Channel Marine Amplifier - 75 Watts RMS X 4
    Crutchfield
    1
    $499.99
    OSD HTX-4150 4-Channel Home Theater Amplifier
    Crutchfield
    8
    $499.99
    OSD HTX-4150 4-Channel Home Theater Amplifier
    Crutchfield
    8
    $699.95
    MTX MA800.4 4-Channel Marine Amplifier - 100 Watts RMS X 4 At 4 Ohms
    Crutchfield
    $699.95
    MTX MA800.4 4-Channel Marine Amplifier - 100 Watts RMS X 4 At 4 Ohms
    Crutchfield
    $6,000.00
    Mcintosh MI254 4-Channel Power Amplifier
    Crutchfield
    $6,000.00
    Mcintosh MI254 4-Channel Power Amplifier
    Crutchfield
    $499.99
    Wet Sounds STX Micro 4 Compact Marine/Powersports 4-Channel Amplifier - 80 Watts RMS X 4
    Crutchfield
    4
    $499.99
    Wet Sounds STX Micro 4 Compact Marine/Powersports 4-Channel Amplifier - 80 Watts RMS X 4
    Crutchfield
    4
    $158.00
    Sony XMS400D Compact 4-Channel Car Amplifier - 45 Watts RMS X 4
    Crutchfield
    96
    $158.00
    Sony XMS400D Compact 4-Channel Car Amplifier - 45 Watts RMS X 4
    Crutchfield
    96
    $529.99
    JL Audio MX500/4 Compact Marine/Powersports 4-Channel Amplifier - 70 Watts RMS X 4
    Crutchfield
    25
    $529.99
    JL Audio MX500/4 Compact Marine/Powersports 4-Channel Amplifier - 70 Watts RMS X 4
    Crutchfield
    25
    $229.00
    Behringer EPQ304 75-Watt 4-Channel Power Amplifier 4-Channel Power Amplifier, 75W Peak/Ch At 4 Ohms, With Built-In Limiters, Accelerated Transient
    Sweetwater
    $229.00
    Behringer EPQ304 75-Watt 4-Channel Power Amplifier 4-Channel Power Amplifier, 75W Peak/Ch At 4 Ohms, With Built-In Limiters, Accelerated Transient
    Sweetwater