4 CHANNEL
Down4Sound 4 channel amplifiers are among the most popular car audio amplifiers on the market. They are available in various power levels, from 400W up to 6000W. Our 4 channel amplifiers are offered in Class D or Class AB technology, and all of them can produce more power than their advertised ratings. 3rd party 4-channel amplifier review & dyno videos are available within each listing, so you can see how much power these amplifiers can produce. When choosing a four channel amplifier for your car audio system, the sky is truly the limit.
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On Sale
DOWN4SOUND JP84 - WHITE GLOSS | 400W RMS 4CH AMPLIFIER
Down4Sound
¥15,026 - ¥18,339Introducing the Down4Sound JP84 4-Channel Amplifier in Gloss White - a dynamic force in car audio, delivering 400W RMS power to revolutionize your listening experience. Meticulously engineered, this full-range...JP84-WHG-¥15,026 - ¥18,339 -
On Sale
DOWN4SOUND JP84 - BLACK GLOSS | 400W RMS 4CH AMPLIFIER
Down4Sound
¥15,026 - ¥18,339Introducing the Down4Sound JP84 BLACK GLOSS 4-Channel Amplifier - a powerhouse that delivers 400W RMS power to transform your car audio system. Engineered to perfection, this full-range digital multi-channel amplifier offers stability into 2 ohms stereo...JP84-BKG-¥15,026 - ¥18,339 -
On Sale
DOWN4SOUND MM1004 (MINI MAXX) - GRAY | 700W RMS MINI 4 CH CAR AUDIO AMPLIFIER
Down4Sound
¥15,965 - ¥18,173Elevate your audio experience with the DOWN4SOUND MM1004 (MINI MAXX) in Gray - a 700W RMS Mini 4-Channel Car Audio Amplifier. This compact and versatile amplifier, finished in a sophisticated gray, is expertly designed to deliver dynamic sound...MM1004-GY-¥15,965 - ¥18,173 -
DOWN4SOUND MM504 (MINI MAXX) - WHITE GLOSS | 300W RMS MINI 4 CH CAR AUDIO AMPLIFIER
Down4Sound
MSRP: ¥26,517¥13,008Introducing the DOWN4SOUND MM504 (MINI MAXX) in Gloss White - a sleek and potent 300W RMS 4-Channel Car Audio Amplifier. This elegantly designed compact amplifier is engineered to deliver superior audio performance in a small footprint, making it a...MM504-WHG-MSRP: ¥26,517¥13,008 -
On Sale
DOWN4SOUND MM504 (MINI MAXX) - BLACK GLOSS | 300W RMS MINI 4 CH CAR AUDIO AMPLIFIER
Down4Sound
¥10,799 - ¥13,008Introducing the DOWN4SOUND MM504 (MINI MAXX) in Gloss Black - a sleek and potent 300W RMS 4-Channel Car Audio Amplifier. This elegantly designed compact amplifier is engineered to deliver superior audio performance in a small footprint, making it a...MM504-BKG-¥10,799 - ¥13,008 -
On Sale
DOWN4SOUND MM504 (MINI MAXX) - GRAY | 300W RMS MINI 4 CH CAR AUDIO AMPLIFIER
Down4Sound
¥10,799 - ¥13,008Introducing the DOWN4SOUND MM504 (MINI MAXX) in Gray - a sleek and potent 300W RMS 4-Channel Car Audio Amplifier. This elegantly designed compact amplifier is engineered to deliver superior audio performance in a small footprint, making it a perfect...MM504-GY-¥10,799 - ¥13,008 -
On Sale
DOWN4SOUND MM504 (MINI MAXX) - RED | 300W RMS MINI 4 CH CAR AUDIO AMPLIFIER
Down4Sound
¥10,799 - ¥13,008Introducing the DOWN4SOUND MM504 (MINI MAXX) in Red - a sleek and potent 300w RMS 4-Channel Car Audio Amplifier. This elegantly designed compact amplifier is engineered to deliver superior audio performance in a small footprint, making it a perfect...MM504-RD-¥10,799 - ¥13,008 -
On Sale
DOWN4SOUND MM504 (MINI MAXX) - PURPLE | 300W RMS MINI 4 CH CAR AUDIO AMPLIFIER
Down4Sound
¥10,799 - ¥13,008Introducing the DOWN4SOUND MM504 (MINI MAXX) in Purple - a sleek and potent 500W RMS 4-Channel Car Audio Amplifier. This elegantly designed compact amplifier is engineered to deliver superior audio performance in a small footprint, making it a perfect...MM504-PU-¥10,799 - ¥13,008 -
On Sale
DOWN4SOUND MM504 (MINI MAXX) - ORANGE | 300W RMS MINI 4 CH CAR AUDIO AMPLIFIER
Down4Sound
¥10,799 - ¥13,008Introducing the DOWN4SOUND MM504 (MINI MAXX) in Orange - a sleek and potent 300W RMS 4-Channel Car Audio Amplifier. This elegantly designed compact amplifier is engineered to deliver superior audio performance in a small footprint, making it a perfect...MM504-OR-¥10,799 - ¥13,008 -
On Sale
DOWN4SOUND MM504 (MINI MAXX) - GREEN | 300W RMS MINI 4 CH CAR AUDIO AMPLIFIER
Down4Sound
¥9,529 - ¥11,737Introducing the DOWN4SOUND MM504 (MINI MAXX) in Green - a sleek and potent 500W RMS 4-Channel Car Audio Amplifier. This elegantly designed compact amplifier is engineered to deliver superior audio performance in a small footprint, making it a perfect...MM504-GR-¥9,529 - ¥11,737 -
On Sale
DOWN4SOUND MM504 (MINI MAXX) - BLUE | 300W RMS MINI 4 CH CAR AUDIO AMPLIFIER
Down4Sound
¥10,799 - ¥13,008Introducing the DOWN4SOUND MM504 (MINI MAXX) in Blue - a sleek and potent 300W RMS 4-Channel Car Audio Amplifier. This elegantly designed compact amplifier is engineered to deliver superior audio performance in a small footprint, making it a perfect...MM504-BL-¥10,799 - ¥13,008 -
On Sale
DOWN4SOUND MM504 (MINI MAXX) - BLACK | 300W RMS MINI 4 CH CAR AUDIO AMPLIFIER
Down4Sound
¥10,799 - ¥13,008Introducing the DOWN4SOUND MM504 (MINI MAXX) in Black - a compact yet powerful 300W RMS 4-Channel Car Audio Amplifier. This sleek and efficient amplifier is designed to deliver exceptional audio performance in a small package, making it perfect for car...MM504-BK-¥10,799 - ¥13,008