The SCM20SL reproduce bass with remarkable articulation and authority, it also has outstanding mid-band clarity, incredible dynamic range, and awesome power handling.
The hybrid design incorporates a 150mm bass cone on to which is grafted a 75mm soft dome.
The magnet assembly utilises ATC's unique "SL" technology which greatly reduces distortion in moving coil drive units by a very significant 12-15dB (3rd harmonic). To minimise Time Domain Distortion both dome and cone are made from acoustically "dead" polyester wave material doped with ATC's own formulation.
The active tower version (SCM20ATSL) is powered by the ATC "Grounded Source" Bi-amplifier. The bass/mid is driven with 200 watts, while the tweeter has 50 watts of class "AB" power.
Both amplifiers feature momentary gain reduction circuitry which both protects drive units and prevents unpleasant sounds from overdrive.
Accompanied by either an ATC SCA2, CA2 preamp or CDA2 MkII the SCM20AT will out perform any other combination in its price range, many costing far more.
Drivers: HF 25mm, Mid 75mm, LF 150mmFrequency Response -6dB: 60Hz - 20kHzMatched Response: ±0.5dBDispersion: ±80° Coherent Horizontal ±10° Coherent VerticalMax SPL: 108dBCrossover Frequency: 2.8kHzInput Connector: Bi-wire postsRecommended Amplifier Power (see ATC SIA2-150): 50-300 WattsCabinet Dimensions(HxWxD): 440x239x333mmWeight: 22.7kg