The Bass That Disappears
The REL Tzero MKIII brings weight and scale to a system without demanding either from the room.
Subwoofers usually arrive with a certain visual arrogance. They occupy a corner, announce their dimensions and wait for the first explosion. The REL Tzero MKIII takes the opposite approach. It is small enough to disappear beside a pair of compact speakers and disciplined enough to avoid turning every bass note into an event.
Its cabinet measures just 21.6 × 24.1 × 26 centimetres and weighs 6.8 kilograms. Inside, a 6.5-inch long-throw aluminium driver faces the floor, powered by a 100-watt Class D amplifier. Its extension reaches 37 Hz at -6 dB: not subterranean territory, but more than enough to restore the foundation that smaller loudspeakers often leave behind.
REL’s high-level connection allows the Tzero MKIII to receive the same signal sent to the main speakers. This helps it follow their tonal character and timing instead of behaving like a separate source of low-frequency effects. Low-level and LFE inputs are also available, making the little cabinet equally comfortable with music and a compact home-theater system.
The purpose is not to hear the subwoofer. Properly adjusted, it should make voices feel more present, instruments acquire scale and the entire soundstage appear less constrained. Switch it off, and something suddenly seems missing.
Finished in glossy black or white and priced at around USD 599, the Tzero MKIII is a particularly elegant entry into serious bass. It does not try to dominate the room. It quietly persuades the room to sound larger.