GR Research Direct Servo Subwoofer Model SW-12-16FR.. Shipped with USPS Ground Advantage.

This subwoofer utilizes servo technology, which allows the amplifier to monitor cone movement and instantly correct inaccuracies for lower distortion.

It is designed for infinite baffle applications, meaning it operates best mounted in a large, open space rather than a sealed box.

The SW-12-16FR features a 12-inch driver capable of producing extremely low frequencies with high efficiency.

Servo subwoofers are known for delivering fast, tight bass response compared to traditional designs.