The SCM20SL Classic is ATC’s flagship 2-way stand-mount loudspeaker. Ideal for modestly sized rooms where performance cannot be compromised.
Its sealed cabinet design ensures precise timing and excellent low-frequency output below the cut-off. The combination of ATC mid/bass and soft-dome tweeters delivers mid-range & high-frequency exceptional clarity, and the driver component’s shared design philosophy ensures the parts work seamlessly together.
Both versions employ ATC’s renowned drive units, which are painstakingly designed and manufactured by ATC in the UK.
The active SCM20ASL features an on-board 250W amp pack. Simply pair with a suitable pre-amplifier, DAC/pre or streaming-pre-amp for stunning results.
The active SCM20ASL replaces the passive crossover and the driving amplifier of a ‘conventional’ system with a precisely matched ‘Amp Pack’, mounted to the rear of the loudspeaker cabinet. The electronic system consists of a balanced input feeding a 2nd-order active electronic crossover which, in turn, feeds a pair of class A/B power amplifiers, carefully tailored to the exact requirements of the mid/bass and high-frequency drive units.
The active crossovers deliver greater precision in both level and timing, and the two power amplifiers directly coupled to the drive units result in an improvement in control and dynamic range vs a passive system.
The cabinet is constructed to be heavy and inert with a combination of bracing for stiffness and damping to suppress resonance. Bitumastic damping panels are deployed at critical positions to minimise cabinet colouration. It is available in a wide range of finishes.
Special Order Finishes
ATC is committed to not only ensuring that their product range offers nothing less than the best sound reproduction money can buy, but they're also committed to housing their stunning engineering in as bespoke a manner as possible. That's why they offer a range of finishes to suit your personal space and style.
Being special orders, these finishes do take a little longer to arrive, but once you set eyes on them, you'll be glad for the wait! Please call us if you have any queries.
The full list of finishes is shown below, and note that some finishes have different pricepoints.
The SCM20ASL is also available as a floor-standing ‘tower’ model with identical performance in the form of the SCM20ASLT.
Technical Specifications
Mid/bass driver 1 x 150mm/6″, SB75-150SL 8Ω
High-Frequency Driver 1 x 25mm/1″, SH25-76S 6Ω
Low Frequency Cut-off 55Hz (-6dB, anechoic)
High Frequency Cut-off 25 kHz (-6 dB)
Matched Response +/-0.5dB
Crossover Point 2.2 kHz MaxSPL 108dB continuous 14 dB peak (per pair, IEC Weighted Pink Noise, 1 m, anechoic).
System Sensitivity 85 dB (@1 m, pink noise, -18 dBu, 1 V input sens., 0 dB bass boost)
Balanced Input 1 x Rear Panel Mounted Female XLR, pin 2 hot
Input Impedance 20 kΩ (differential)
Input CMRR >60dB at (10kHz)
Input Sensitivity 2.2 dBu/1 Vrms for full power
Input Sensitivity Control -6dB switchable, -6dB variable. Total adjustment: 2.2 dBu/1 Vrms to 14.2 dBu/4 Vrms
Bass Shelf -2dB to +3dB, switchable in 1dB steps
Crossover Filters 2nd Order Linkwitz-Riley
Amplifier type Grounded Source MOSFET, class A/B, convection cooled
Output Power Bass 200W (8Ω), H.F. 50W (8Ω)
THD+N <0.0017% / -95 dB (1 kHz, 1 dB below rated power, 90 kHz BW)
Frequency Response <2Hz to 200kHz (-3dB)
Limiter ATC Active FET Momentary Gain Reduction
Electronic amp protection Amplifier d.c. offset and over-temperature (both indicated by rear panel LED)
Mains Input 220-230V or 115V, factory set. Please observe panel markings and labels!
Power Consumption Idle 26W/41VA. 1/8th Power 116W/116VA. Full Power 312W/398VA
Heat Output Idle 89 BTU/hr 1/8th Power 311 BTU/hr Full Power 382 BTU/hr
Colour Options - $14,495.00 Walnut Oak
Standard Special Order Finishes - $14,495.00 Cherry Black Ash Satin White Satin Black
Prestige Special Order Finishes - $16,495.00 Burr Magnolia Burr Poplar European Walnut Pippy Oak Rosewood
Gloss Special Order Finishes - $17,495.00 Piano Black Gloss White
Net Weight 24.3 kg
Dimensions(H x W x D) 450 x 250 x 411 mm
Warranty 6-year warranty covering parts and labour and 2 years on CD mechanisms
*This information has been obtained from the manufacturer's website. We advise that features, specifications & price are subject to change without notice.
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ATC SCM20ASL Active Speakers
Colour: Oak
Vinyl Revival Carlton North
753-755 Nicholson Street Carlton North VIC 3054 Australia
0394195070
Pickup available,
usually ready in 2-4 days
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