Affordable Precision, Compact Design, Big System Potential

The ARC Audio X2 450.4 brings high-end sonic quality to budget-conscious systems without compromise. Designed as the most affordable model in the X2 lineup, this compact 4-channel amplifier delivers clean, powerful sound with the precision and reliability ARC Audio is known for — making it the perfect choice for factory system upgrades, performance-level front stage upgrades, or simply powering front and rear speakers in daily drivers.

Despite its compact footprint, the X2 450.4 offers 85 watts x 4 at 4 ohms, giving you the dynamic headroom and clarity your music deserves. Built on an efficient Class-D platform, this amplifier minimizes heat and current draw while maximizing output — ideal for modern vehicles where space and electrical limitations are a concern.

Installation is simple and flexible. The top-mounted ARC badge can be rotated for clean presentation no matter how the amp is oriented, while removing the badge and top panel reveals all tuning controls and terminal screws for a clean, concealed finish once installed. It’s part of ARC Audio’s installer-first design philosophy — smart cosmetics and serious function.

Whether you're an audio newcomer or a seasoned installer looking for cost-effective performance, the X2 450.4 proves that "entry-level" doesn't mean sacrificing quality.