Subwoofers — ATC C6 Sub

The C6 Sub is a powered subwoofer from ATC, sitting above the brand's C4 Sub Mk2 with somewhat deeper bass extension and substantially greater internal amplification. The C6 Sub brings ATC's professional monitoring heritage to a more capable dedicated bass-reinforcement tier.

Key specs that matter

Rated response spans down to a deep 20Hz (-6dB). Internal amplification delivers a substantial 450W. At 62.4 x 58.0 x 58.0cm and 60kg, the C6 Sub represents a considerable step up in scale from ATC's smaller C4 Sub Mk2.

Sound and use context

Expect controlled, authoritative bass reinforcement reaching deep into infrasonic territory, reflecting the substantial 450W amplification combined with ATC's professional studio-monitoring engineering standards.

Pairing

As a self-powered subwoofer, the C6 Sub connects to a preamplifier, integrated amplifier or AV receiver's subwoofer output directly, pairing naturally with ATC's own active monitor range for a coherently voiced professional-derived system.

Alternatives

ATC's own C4 Sub Mk2 sits below this model as a more compact, lower-power alternative, while the SCS120 Pro offers a different bandwidth profile within the same broader subwoofer catalogue.