Vehicle Search
RD400/4
Technical Highlights
- Power: 100 W RMS x 4 @ 2 Ω / 75 W x 4 @ 4 Ω (14.4V), Frequency Response: 12 Hz 22 kHz.
- S/N Ratio: >104 dB, Damping Factor: >150 @ 4 Ω / >75 @ 2 Ω.
- Filter Frequency Range: 50 Hz 500 Hz, Filter Slope: 12 dB/Octave, Dimensions: 248 x 177 x 54 mm.
- More technical details
Availability for pickups could not be loaded.
Rob
Max
Avoid a bad purchase? We check your setup!
Rob & Max check your project: So you are guaranteed to get the maximum performance for your budget.
This could also look like this for you!
A good Amplifier not only delivers watts, it controls your speakers. Many mainstream amps dazzle with high numbers but lose stability under load. Our selection of power amplifiers from Deaf Bonce and DD Audio stands for honest power ratings and maximum efficiency – so your system plays cleanly even at the limit.
RD400/4 by JL Audio Description
The RD400/4 is a top product among the 4-channel amplifiers from JL Audio, known for its high efficiency and audio output performance. Thanks to the exclusive NexD™ high-speed switching technologies, it delivers outstanding sound quality with low distortion in an ultra-compact design. The robust, black powder-coated surface and numerous innovative features guarantee an unparalleled music experience.
- 4-channel full-range amplifier, Class D
- Power: 100 W x 4 @ 2 Ω / 75 W x 4 @ 4 Ω at 14.4V
- NexD™ high-speed switching technology
- Integrated LED clipping indicator
- High/low pass filter, 12 dB/octave
- Automatic turn-on function
- Preamp outputs for signal forwarding
- Robust, black powder-coated surface
- Rated continuous power (RMS) @ 4 Ω: 75 W x 4
- Rated continuous power (RMS) @ 2 Ω: 100 W x 4
- Frequency response: 12 Hz - 22 kHz (+0, -1 dB)
- S/N ratio: >104 dB
- Damping factor @ 4 Ω: >150 / 50 Hz
- THD+N @ 2 Ω: <1%
- Input voltage range: 200 mV - 8 V RMS
- Minimum cable diameter: 25mm²
- Fuse rating: 40 A
- Dimensions (H x W x D): 54 mm x 248 mm x 177 mm

