SounDigital - Car Full Range Amplifier 800 - 4 Channels 800 Watts RMS 4 Ohm
- 4 channels, Class D
- 800 watts output, rated RMS at 4 Ohm in the title
- 12.6 volts direct current supply
- 9.84 x 4.72 x 2.36 inches, aluminum case
- Thermal and short circuit protection built in
- CE, FCC, RoHS compliance listed
- Cars, motorcycles, boats and off-road vehicles named
Last refreshed Oct 2, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A compact four-channel Class D car amplifier for a system upgrade in a car, boat or motorcycle where space is limited. The listing gives no wiring, fuse or per-channel figures, so installers must confirm them.
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ASIN: B08GNGP28QModel: 800.4 EVO 4.0Category: Amplifiers
Overview
Not a head unit or a speaker, this is a four-channel Class D amplifier that adds power behind existing speakers. It mounts freestanding in a vehicle, and its aluminum body carries thermal protection, short circuit protection and moisture-resistant components.
Choose it when space is tight and efficient Class D output is wanted for a car, boat or powersports system. The listing leaves the per-channel rating, wiring kit and crossover details unstated, so those need checking before purchase.
Who it's for
A driver upgrading factory speakers, or someone building a system in a boat, motorcycle or off-road vehicle, will use the compact case. Buyers who require a wiring kit, a bridged subwoofer channel or documented per-channel ratings should look at listings that spell them out.
Pros and cons
- Compact aluminum case
- Class D efficiency, low heat
- Short circuit protection
- Meets CE, FCC and RoHS standards
- Per-channel power not listed
- No wiring kit named in listing
- Freestanding mount needs a mounting surface
- Award claim in title not documented
Performance notes
Class D amplifiers switch their output stage rapidly, which turns less energy into heat, so a small case can run cooler. Real output depends on the vehicle supply staying near the rated voltage and on the speaker impedance. Protection circuits cut output when heat or a short appears, which protects the amp but interrupts the music.
Specifications
| Model | 800.4 EVO 4.0 |
|---|---|
| Dimensions & fit | |
| Item dimensions | 9.84 x 4.72 x 2.36 inches |
| Capacity & performance | |
| Output power | 800 watts |
| Load impedance (title) | 4 Ohm |
| Power & efficiency | |
| Maximum supply voltage | 12.6 volts of direct current |
| Construction & materials | |
| Material type | Aluminum |
| Compatibility & installation | |
| Mounting type | Freestanding |
| Other details | |
| Number of channels | 4 |
| Amplifier class | Class D |
| Specification met | CE, FCC, RoHS |
Frequently asked questions
What is included with the SounDigital 800.4 EVO 4.0?
The listing counts one item and names no wiring kit, fuse or remote. Confirm accessories with the seller before ordering.
Is the SounDigital 800.4 EVO 4.0 a subwoofer amplifier?
It is described as a four-channel full range amplifier. The listing does not name a dedicated subwoofer channel or a bridged rating.
Where can the SounDigital 800.4 EVO 4.0 be used?
The description names cars, motorcycles, boats and off-road vehicles, and lists moisture-resistant components.