The Acoustic Transducer Company (ATC) has announced the production of the C4 Sub Mk 2 active subwoofer system which features a 12-in driver and a 300W Class AB amplifier.
The C4 Sub Mk 2 features the new SS75-314SC sub-bass driver featuring a 30mm magnetic gap, surrounded by a 6-in/150mm N48M Neodymium magnet. In support, the redesigned motor system features a new rubber roll-surround for high excursion capability, a new spider for optimised compliance geometry, and high flow motor venting for low noise and compression.
The new 300W class AB design amplifier is optimised to the requirements of the new driver, resulting in minimal coloration. Two balanced line inputs provide connectivity for stereo or AV/home cinema systems while two balanced outputs are available to feed partnering ‘main’ stereo loudspeakers or to multiple subs. The amp features a 80Hz low-pass filter and an ‘off’ option joined by a polarity switch, variable 180° phase adjustment and a stepped attenuator over a 21 dB range.
The C4 Sub Mk 2’s 70-litre cabinet employs 25mm/1-inch-thick panels and heavy bracing. The cabinet is available in standard cherry, black ash, walnut and oak real-wood veneers, as well as satin black and satin white finishes, or in premium rosewood, European crown cut walnut, burr magnolia, and pippy oak real-wood veneers, with the option of high gloss over veneers and black/white piano lacquers also available.