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SounDigital - Car Full Range Amplifier 800 - 4 Channels 800 Watts RMS 4 Ohm - Compact Size - Professional Quality - 2025 Best Performance Award

  • Based on 387 reviews
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Availability: Only 9 left in stock, order soon!
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Arrives Sep 29 – Oct 6
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Features

  • Unleash 800 Watts of Pure Power Across 4 Channels The SounDigital 800.4 EVO 4.0 delivers a total of 800 watts of power, split across four channels for superior flexibility. Whether you're running door speakers, mids, tweeters, or a bridged subwoofer, you get clear, consistent sound with virtually no distortioneven at high volumes.
  • Engineered for Compact Installations in Motorcycles, Cars & Tight Spaces This amp is built small but mighty, making it a top choice for motorcycles, compact vehicles, and stealth audio builds. Its ultra-compact footprint allows for easy installation in saddlebags, glove compartments, under seats, or behind dashboards.
  • Built Tough with Moisture-Resistant, Vibration-Proof Construction From rain-soaked rides to bumpy backroads, this amplifier is made to last. Its designed with high-quality, conformal-coated components that resist moisture and vibrationideal for motorcycles and rugged use environments.
  • igh-Efficiency Class D Technology for Cooler, Cleaner Performance The 800.4 EVO 4.0 uses Class D circuit architecture to deliver high output with low power draw. That means less heat, more efficient energy use, and longer system lifespanespecially important in motorcycles and small vehicles with limited battery capacity.
  • omplete Audio Control with Built-In Crossovers and Gain Adjustments Fine-tune your sound like a pro. This amp includes adjustable high-pass and low-pass filters, gain controls, and bridging options so you can dial in the exact audio response for your setup, whether its clarity-focused or bass-heavy.
  • universal Fit for Cars, Bikes, ATVs, UTVs, and Marine Setups This amp is built for flexibility and is compatible with a wide range of vehicles and powersport platforms. Whether you're upgrading your car stereo, motorcycle speakers, or even a boat system, this amplifier fits seamlessly into your build.
  • Aluminum Heatsink Housing for Strength and Heat Dissipation Crafted with a durable aluminum chassis, the 800.4 EVO 4.0 stays cooler under pressure. The heatsink design not only protects internal components but also helps maintain peak performance during long rides or hot weather conditions.
  • Bridgeable Channel Options for More System Design Freedom Need more power to a single speaker or subwoofer? You can bridge the channels for higher output, giving you the flexibility to build your system exactly how you want it, whether youre running a clean 4-speaker stage or a 2-channel monster.
  • SounDigital Quality Trusted Worldwide by Audio Enthusiasts and Pros SounDigital is known globally for its innovation in compact, high-performance amplifiers. The EVO 4.0 series represents the cutting edge of sound engineering, trusted by professional installers, competition builders, and serious audio lovers everywhere.

Description

The SounDigital 800.4 EVO 4.0 is a high-performance 4-channel Class D amplifier built to deliver powerful, clean sound in a compact and versatile design. With up to 800 watts of total power, this amp is perfect for cars, motorcycles, boats, and off-road vehicles where space is limited but sound quality is essential. The EVO 4.0 series uses advanced Class D technology to provide high efficiency with low heat output, ensuring stable performance even during long play sessions. Its rugged construction and compact size make it ideal for both daily drivers and competition setups. Featuring thermal protection, short circuit protection, and moisture-resistant components, this amp is built to perform in harsh environments. Whether you're upgrading your car stereo or building a full custom system, the SounDigital 800.4 EVO 4.0 delivers crystal-clear audio, reliable power, and easy installation in one sleek unit.

Item dimensions L x W x H: 9.84 x 4.72 x 2.36 inches


Voltage: 12.6 Volts (DC)


Manufacturer: SounDigital


Mounting Type: Freestanding


Brand: SounDigital


Product Dimensions ‏ : ‎ 9.84 x 4.72 x 2.36 inches; 1.72 Pounds


Item model number ‏ : ‎ 800.4 EVO 4.0


Date First Available ‏ : ‎ January 11, 2021


Manufacturer ‏ : ‎ SounDigital


Best Sellers Rank: #23,933 in Electronics (See Top 100 in Electronics) #29 in Car Multichannel Amplifiers


#29 in Car Multichannel Amplifiers:


Customer Reviews: 4.4 4.4 out of 5 stars 387 ratings


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sep 29 – Oct 6

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Leasing options through Acima may also be available during checkout.

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Top Amazon Reviews


  • Small and powerful...
Value for money: Great price, fitment was great for the fairing of my Ultra Limited. These small amplifiers are powerful and well worth the money.
Reviewed in the United States on June 22, 2025 by Tarsha

  • Very small and super powerful
This plant is of good quality and came out excellent.
Reviewed in the United States on August 26, 2024 by Adriana Rafaela Colmenarez Medina

  • GREAT AMP AND COMPACT SIZE
I ordered this Soundigital 800.4 EVO, the big brother to the Soundigital 400.1 EVO I bought for the front speakers. Same powerful output X2 as its little brother!! I am running these two amps in my 2020 Harley-Davidson Road Glide. Bridged both amps, the 400.4 running the front two 6.5” and the 800.4 running the two rear 6x9’s. WOW!!! Pair these amps with a good set of Polk marine speakers and a small EQ or head unit with a good EQ to dial it all in and I’d put this setup against any much more expensive setup any day!!! I do concert sound for a living and understand sound delivery and this system sounds AMAZING sitting in place or running 75 mph down the road… For the money, it just cannot be beat!!! ... show more
Reviewed in the United States on October 21, 2024 by CM Hughes CM Hughes

  • Sounds Amazing
Compact and powerful
Reviewed in the United States on April 25, 2025 by Rodd

  • Great amp for my HD.
Good amp. Used it in my 02 electra glide. Hooked up 2 6.5 and 2 6x9 jbl. Sounds great.
Reviewed in the United States on June 29, 2025 by Jason Nicholson

  • The Sounds is amazing!!!
At first, I was skeptical because the price is so good. Kinda like that saying you get what you pay for but let me tell you the sound is amazing it’s loud great quality, extremely happy I suggested to everybody I told all my friends who ride as well definitely a lot of bank for your buck.
Reviewed in the United States on February 12, 2024 by Carol Best

  • Haven’t had it 5 months and quit working
Haven’t had it for more than 5 months and just stopped working no sound will come out and started smoking out of nowhere
Reviewed in the United States on April 13, 2025 by matt

  • Amazing sound true 800+ watts
I dynoed this little monster and got 241 watts out of every channel it sounds clean and it's so small it fit under the head unit on my 2022 HD road glide limited I definitely recommend this amplifier as it is a true 800 watts not like so many other companies that constantly lie about the power numbers. ... show more
Reviewed in the United States on August 4, 2024 by Mark Nano

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