VTF-3 MK4

About the VTF-3 MK4

The Hsu Research VTF-3 MK4 Subwoofer is a 12-inch ported powered subwoofer designed for high performance in medium to large rooms. It features a 350-watt Class-AB amplifier and a solid, well-built cabinet measuring approximately 22.25" H x 17.75" W x 25.75" D, weighing about 74 pounds. The subwoofer includes two large bass ports on the right side panel, sealed with removable rubber plugs, allowing users to fine-tune bass response by changing port configurations and adjusting EQ and Q controls. This flexibility enables a range of bass characteristics from rich and full to lean and highly defined. The VTF-3 MK4 offers a frequency response extending down to about 16Hz (felt more than heard), with modes optimized for medium-to-large rooms and high playback levels. It includes controls for volume, phase (0°/180°), Q control, and EQ settings, allowing detailed calibration to room acoustics and listening preferences. The subwoofer is praised for clean bass reproduction, excellent integration with various speakers, and the ability to enhance overall soundstage and speaker performance. It is suitable for music and home theater use, delivering impactful and precise low-frequency effects.