Ruthless Audio 400.4M Micro Amplifier | 4 Channel

Ruthless Audio 400.4M Micro Amplifier | 4 Channel – Marine Grade Power in a Compact Design

Looking for powerful, reliable sound in a tight space? The Ruthless Audio 400.4M Micro Amplifier is a true Korean-built 4-channel amplifier designed specifically for motorcycles, boats, ATVs, UTVs, and other powersport applications. Built to withstand the elements without sacrificing sound quality, this compact amp is marine-grade and engineered for real-world durability and performance.

Despite its small footprint, the 400.4M delivers clean, consistent power across four channels — making it perfect for mids, highs, or a full-range system in any harsh-environment build. Whether you're ripping down the highway or floating on the water, this amp is ready to get loud and stay reliable.

Key Features:

• True Korean-built quality for maximum reliability

• Marine Grade Construction – water-resistant and built to endure tough conditions

• Compact Micro Design – fits easily on motorcycles, ATVs, UTVs, and boats

• 4-Channel Output – ideal for mids and highs or small full-range systems

• Ruthless Power – proven performance in a compact package

Perfect For:

• Motorcycles – fits fairings and saddlebags with ease

• Boats & Marine Audio – marine grade build resists water and corrosion

• ATVs & UTVs – handles rough terrain and tight installs

• Tight-Space Car Builds – micro size, full power

If you're building a system where space is limited but performance can’t be compromised, the Ruthless Audio 400.4M is your answer. Proven, powerful, and purpose-built for extreme environments — get Ruthless with your sound.