Compact Bass Power With Precision and Purpose

The ARC Audio X2 650.1 is a monoblock amplifier engineered specifically for subwoofer applications. Its optimized output bandwidth is limited from 10Hz to 230Hz, ensuring that every watt is used for low-frequency performance. This makes it an ideal choice for powering subwoofers — and not suitable for full-range or mid/high-frequency speakers.

With up to 650 watts of power into a 1-ohm load, the X2 650.1 is perfect for daily drivers running a single sub or moderate dual-subwoofer configurations. For users needing more output without sacrificing space, two X2 650.1s can be strapped together to provide up to 1100 watts of power into a 4-ohm subwoofer load.

This amplifier features ARC Audio’s Level 1 cosmetics — a compact black steel chassis with a rotatable diamond-cut aluminum badge. Its installer-first design allows access to tuning controls and connection terminals by simply removing the top panel, creating a clean and serviceable installation once the setup is complete.

Like all X2 amplifiers, the 650.1 includes balanced differential inputs. This makes integration with modern factory audio systems simple and reliable, allowing direct connection to speaker-level outputs without the need for converters — a major advantage for OEM upgrade installations.

If your system needs tight, controlled bass in a compact footprint with flexible installation features, the X2 650.1 is built for the task — subwoofer power, simplified.