SounDigital SD400.4 EVO 4.0 400W 4-Channel Car Amplifier
SounDigital SD400.4 EVO 4.0 400W 4-Channel Car Amplifier
Four-channel power that fits your installation
Upgrade your car audio system with the SounDigital SD400.4 EVO 4.0, a compact four-channel amplifier with listed output of 4 × 100W RMS at 2 ohms and 12.6V. Its bridgeable configuration gives you options when planning a compatible speaker setup.
At just 109 × 113 × 50mm, the amplifier is designed for installations where space matters. Picture a neatly installed system with each speaker channel configured and tuned to suit your listening preferences, without a bulky amplifier taking over the available space.
Key Benefits
- Four-channel amplification for flexible speaker-system layouts.
- Bridgeable output: 2 × 200W RMS at 4 ohms and 12.6V.
- Compact dimensions to support space-conscious installations.
- High-pass and low-pass crossover options at 80Hz, with a 12dB/octave slope.
- DTR (Dynamic Thermal Recovery) technology, described in the existing listing as supporting heat transfer to the heatsink.
Specifications / Key Features
- Brand: SounDigital
- Model: SD400.4 EVO 4.0
- Channels: 4
- Frequency response: 10Hz–20kHz
- LP/HP crossover: 80Hz, 12dB/octave
- Damping factor: Greater than 200
- THD+N at 10% power: 0.1%
- THD+N at 100% power: 1%
- Maximum current draw: 39A
- Amplifier dimensions: 109 × 113 × 50mm
- Amplifier weight: 0.46kg, as stated in the existing listing
Listed RMS Power Ratings
| Configuration | Load | At 12.6V | At 14.4V |
|---|---|---|---|
| Four channels | 2 ohms per channel | 4 × 100W | 4 × 112W |
| Four channels | 4 ohms per channel | 4 × 66W | 4 × 74W |
| Two bridged channels | 4 ohms per bridge | 2 × 200W | Not specified in this listing |
The 400W RMS rating represents total output at the listed 2-ohm load and 12.6V supply, not 400W per channel. Output varies with speaker load and supply voltage.
Package Contents and Warranty
The existing listing specifies one SD400.4 EVO 4.0 amplifier, a user manual, and a warranty certificate. It also lists an included invoice and a one-year manufacturer warranty. Refer to the supplied warranty terms for coverage and conditions.
Installation Guidance
Professional installation is recommended. Verify speaker impedance, bridge wiring, power and ground cable requirements, circuit protection, and ventilation against the manufacturer's documentation. Do not operate below the specified minimum load.
Choose compact, flexible amplification and plan your next car audio upgrade around the SD400.4 EVO 4.0.
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