Viewed from above, the SCM40As’ curved cabinets soften their visual lines while helping to reduce internal standing wavesĪt £7,400 the extra outlay needed for the SCM40A models buys you a dedicated 242W Class AB triamplifier nestled within each speaker, that’s separated into 32W for the tweeter, 60W for the midrange and 150W for the bass driver.
ATC SCM40A DRIVERS
On the eye the bass driver seems bigger, as 164mm is measured from the centre of its rubber surround, unlike many manufactures that measure from the edge of the surround to make the numbers look big, but drivers appear small. All units are made in house and incorporate huge motor assemblies to ensure they can handle whatever signal is thrown at them without worry. A 164mm short coil bass driver continues the visual theme with a massive central dust cap. The SCM40A’s air-moving hardware is also the same as its passive brethren, sporting a three-way design made up of a 25mm soft dome tweeter with precision alloy wave guide and a 75mm variant of ATC’s instantly recognisable large soft dome midrange drive unit. As well as being easier on the modern eye than square boxes, curved sides also help to minimise parallel surfaces and therefore internal standing waves. To achieve the curve, the side panels are laminated up from three individual layers of 6mm MDF to provide greater stiffness and damping. The SCM40A on test here is the flagship model in ATC’s Entry series, with the ‘A’ denoting this as the active version of the passive SCM40 model, with the latter foregoing internal power amps for a price tag of £3,990.īoth models feature the same sealed lusciously curved cabinets made from 18mm of braced MDF.
ATC SCM40A PRO
This of course also takes years of knowhow to get right, and the Acoustic Transducer Company (or ATC to you and me) has plenty of it, with a product portfolio spread across pro and consumer ranges that extends into the top tiers of hi-end territory. Proudly purposeful, ATC’s SCM40A are beautifully proportioned and come in cherry or black ash wood veneers, with satin black and white painted options also available
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