Even though the WAMM Master Chronosonic loudspeaker was designed as a full-range system, with a frequency response within 2db down to 20Hz, Dave Wilson understood the imperative of creating a subwoofer to further complement the design.

In reality, there isn’t actual music below 20Hz; this is the region known as the infrasonic, where sound is not so much heard as felt. But aside from the enhancing the visceral impact of a bass drum or the lowest pipe organ notes, a subwoofer that operates down to 10Hz does something at once counter-intuitive and far more valuable: it reveals air. The size of the hall, the space in which the recording was made. And at the same time, it imparts to the midrange a sense of ease and transparency even more compelling than what was already magical before.

The Subsonic employs three dual-spider woofers in an enclosure tuned to reproduce the infra-sonic range below 10 Hz, and, at the same time, seamlessly and coherently mesh with the Master Chronosonic in the lower midbass region. Extreme transient speed is not a intuitive characteristic associated with subs; the Subsonic was designed to cover the bottom octaves at the same level of transient fidelity that characterizes the WAMM Master Chronosonic.

While nearly identical in performance to the Wilson Audio Subsonic, the WAMM Master Subsonic is a special limited edition subwoofer matched to, and only available as part of, the WAMM Master Chronosonic system.