ATC SCM20ASL + C4 Mk2 Sub - Limited Edition Active Loudspeakers with Subwoofer

The ATC SCM20ASL Limited Edition 2-way active stand-mount with the limited edition C4 MK2 subwoofer continues ATC’s philosophy of combining the best in-house loudspeaker drive units with matched on-board active amplification for optimal fidelity.

These new models integrates a 2-way active system, previously only available in a floor standing model, into a smaller stand-mount cabinet. The SCM20ASL Limited Edition features ATC’s proprietary 150mm/6” ‘Super Linear’ Mid/Bass driver paired with a 25mm/1” ‘S-Spec’ dual-suspension tweeter. Partnering the SCM20ASL loudspeakers is a sonically matched limited edition C4 Sub Mk2 Subwoofer.

Limited to just 150 pairs, the 2-way active stand-mount and the limited edition C4 MK2 subwoofer design is finished in a stunning high gloss lacquer in the ATC company dark blue.

Complementing the cabinet, the front baffle is hand-upholstered in royal blue full-grain Napa leather by German leather specialists Eissmann. The exterior alloy components feature a silver anodised finish in striking contrast to the blue lacquer and leather of the cabinet and baffle. 

Loudspeakers Key Features

• Compact sealed cabinet finished in high-gloss blue with leather upholstered baffle
• On-board ATC active 250W ‘Amp Pack’ module
• 2nd order Linkwitz-Riley active crossovers
• 2 x class A/B MOSFET amplifiers, 200W bass/mid & 50W high frequency
• User adjustable input sensitivity & bass shelf controls
• Hand-built in England
• 6 year warranty

Subwoofer Key Features

• Compact 12″ Subwoofer sonically matched to the SCM20ASL limited edition active speaker system.
• Handmade ATC 12″/314mm  driver with massive motor assembly and ribbon voice coil
• ATC 200W class A/B amplifier
  High Level and Line Level Inputs
• Comprehensive user controls to ensure best possible integration with partnering loudspeakers
• Hand-built in England
• 6 year warranty

The bass driver operates in a 20-litre sealed cabinet and power is provided by on-board class A/B MOSFET power amplifiers, capable of delivering 200W and 50W continuous power to the bass and HF drivers respectively. The loudspeaker crossovers are active, analogue 2^nd order Linkwitz-Riley and an all-pass filter is included to optimise the phase response through the crossover region, resulting in far improved tonal balance and imaging.

Input to the loudspeaker is via balanced XLR, located on the rear panel and there are user controls for input sensitivity and low frequency shelf cut/boost.  The input sensitivity control allows the user to tailor the input gain to suit their source/pre-amplifier combination, resulting in more consistent performance.  The low frequency shelf control gives the user the option to subtly adjust the bass response to suit their room and/or their personal taste.  The speaker is supplied with a removable grille, wrapped in dark blue acoustically transparent cloth.

Only 150 pairs of the SCM20ASL LE and 20 partnering C4 Sub Mk2 subs will be manufactured

UK stock allocation is limited to just 10 pairs. (we have secured just three pairs)

Bring professional sound to your home with the C4 Sub Mk2

Call to reserve 01925 828 009 

Speaker Acoustic Specifications

Speaker Electronic Specifications

Speaker Physical Specifications

Subwoofer Acoustic Specifications

Subwoofer Electronic Specifications

Subwoofer Physical Specifications