Sundown Audio SDX-400.1 Weatherproof Mono Amplifier

• 400 x 1 @ 1 ohm RMS
• 300 x 1 @ 2 ohms RMS
• 175 x 1 @ 4 ohms RMS
• Variable 12dB low-pass filter: 50Hz - 250Hz
• Variable 12dB bass boost 
• DC auto-sensing turn on
• Thermal, voltage, speaker short, and dc-offset protection circuitry
• Water resistant
• Heavy cast aluminum heat sink
• Removable audio control cover
• Wired remote control 

Get ready to experience the power and versatility with the water-resistant SDX amp! Perfect for your car, UTV, or any open-air vehicle, this compact yet mighty Class D amplifier delivers exceptional fidelity. Neatly protected beneath a sealed cover, a full suite of audio controls allow you the freedom to adjust your sound to perfection. A robust aluminum casing provides superior heat dissipation, and a shield from the elements. Whether its powersports or in your daily driver - with the SDX amp, you get great sound - for years of fun in any weather!

Product Manual

Return for refund within: 30 days

Return for replacement within: 30 days

Standard Return Policy Overview

You may return merchandise purchased from Showtime Electronics for a refund or a replacement, provided that the procedures and requirements are followed. All returns require a return merchandise authorization (RMA) number. An RMA number must be issued within 30 calendar days after the date of purchase. An RMA number is valid for 14 calendar days after it is issued. Once you log in to your user account, you will be able to Request and RMA. In addition, you can also request an RMA at the bottom of our homepage. If you have any issues, please email us at sales@showtimeelectronics.com

Free shipping is available in the continental United States, excluding Hawaii and Alaska.

International shipping is available and calculated at checkout.

All orders will receive tracking once shipped through USPS, Fedex, UPS, and DHL.