SCM20ASLT 

The SCM20SL Tower is ATC’s flagship 2-way floor-standing loudspeaker and is the ideal choice in modestly sized rooms, but where performance cannot be compromised. It is available in both passive and active bi-amplified versions, the SCM20PSLT and SCM20ASLT respectively.

Its sealed cabinet design ensures excellent timing, and useful low-frequency output below the cut-off, and the speakers can be placed relatively close to walls without excessive low-frequency ‘boom’.

Both the mid-bass driver and tweeter are handmade by ATC. The bass driver is a 6”/150mm part with a huge 3”/75mm voice coil and massive, long-gap (short-coil) motor assembly featuring ATC’s proprietary ‘SL’ motor technology. The tweeter is a 1”/25mm soft-dome part featuring a dual suspension and a very high energy 2.1 Tesla motor. Together, they form the basis for an exceptional 2-way monitor loudspeaker capable of delivering outstanding resolution and musicality.

Driver integration within the passive model is handled as 2nd order crossover featuring oversized air-core inductors wound in-house by ATC. Capacitors are all high-voltage polypropylene film types and the input features heavy-duty binding posts in a bi-wire configuration.

The active SCM20ASLT features an onboard ATC bi-amp pack featuring 2-way active crossovers and class A/B MOSFET power amps, delivering a total power output of 250W. The active crossovers’ superior accuracy and phase coherence, plus the removal of the lossy passive components between the power amp and drivers deliver a level of performance that simply can’t be matched by competing passive designs.

The SCM20 cabinet is built to be sturdy and non-reactive. It has bituminous damping panels placed at important points to reduce any colouration of sound from the cabinet. You can choose from 10 different hand-selected veneers, as well as satin black or white painted finishes, and piano black or white high gloss polyester.