Subwoofers — ATC SCS70 PRO

The SCS70 PRO is a powered subwoofer from ATC, sitting above the C1 Sub Mk2 with notably high sensitivity and considerably greater internal amplification. The SCS70 PRO brings ATC's more accomplished current professional engineering to serious dedicated bass reinforcement.

Key specs that matter

Rated response reaches down to an exceptionally deep 22Hz at -6dB. Sensitivity is a notably high 88dB. Internal amplification delivers 300W - considerably more than the C1 Sub Mk2's 200W. At 56.8 x 46.4 x 50.0cm and 44kg, the SCS70 PRO represents a meaningful step up in scale from the C1 Sub Mk2.

Sound and use context

Expect controlled, authoritative bass reinforcement reflecting the exceptional 22Hz reach combined with the notably high 88dB sensitivity and greater 300W amplification, consistent with ATC's professional studio-monitor engineering heritage.

Pairing

As a self-powered subwoofer, the SCS70 PRO connects to a preamplifier, integrated amplifier or AV receiver's subwoofer output directly, working alongside a broader main-speaker system.

Alternatives

ATC's own C1 Sub Mk2 sits below this model at more modest scale, worth considering instead if the SCS70 PRO's additional mass and amplification exceed what a specific room requires.