The REL Gibraltar G-1 Sub-Bass System

The Sonus faber Amati Futura loudspeakers were delivered with one REL Gibraltar G1 sub-bass system. While external subwoofers heretofore have not been my cup of tea because they can muddy up the main speaker’s midbass and midrange, the G-1 is different. The REL is designed to mate seamlessly with high-performance main loudspeakers, and does so admirably. However, one must have a light touch with its settings (lower is better) to achieve its beneficial sonic gains.