JL Audio RD400/4 NexD 4 Channel Class D Car Audio Amplifier
- M400/4 - JL Audio 4-Channel 400 Watt Marine Amplifier.
- NexD technology features unsurpassed efficiency.
- Pulse Width Modulated MOSFET power supply.
- Remote bass level input (JL Audio HD-RLC remote level control sold separately).
- Dimensions: 8-1/2"L x 7-1/8"W x 2-1/16"H.