Upgrade your car audio experience with the X2 450.4 amplifier from Arc Audio. With a powerful 4-channel design, this amplifier delivers exceptional sound quality and clarity, making your music come alive like never before. The compact size and easy installation make it the perfect choice for any vehicle. The sleek and modern design adds a touch of class to your car, making it stand out from the rest. Don't settle for mediocre sound, take your music to the next level with the X2 450.4 amplifier. Experience the ultimate in high-performance car audio with the X2 450.4, buy it today!