ATC SCM20ASL Limited Edition
The ATC SCM20ASL Limited Edition is a 2-way active loudspeaker released to mark the beginning of ATC’s 50th Anniversary year. This exclusive new model, limited to just 150 pairs, packs ATC’s finest transducer engineering and active loudspeaker technology into a compact sealed cabinet, finished to exceptional standards in a stunning high-gloss blue lacquer. Complementing the cabinet, the front baffle is hand-upholstered in dark blue full-grain Napa leather.
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
Acoustic Specifications
Bass/mid 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) o High Frequency Cut-off: 25kHz (-6dB)
Crossover Point
2.2kHz
MaxSPL
108dB continuous, 114dB peak (per pair, IEC Weighted Pink Noise, 1m, anechoic)
Sensitivity
+4dBu rev 95dBC (Bass Boost 0dB, Input Sensitivity 1V, Pink noise)
Electronic Specifications
Balanced Input
1 x Rear Panel Mounted Female XLR, pin 2 hot o Input Impedance: 20kΩ (differential) o Input CMRR: >60dB (10kHz)
Input Sensitivity
2.2dBu/1Vrms for full power
Input Sensitivity Control
-6dB switchable, -6dB variable. Total adjustment 2.2dBu/1Vrms to 14.2dBu/4Vrms o Bass Shelf: -2dB to +3dB, switchable in 1dB steps
Crossover Filters
2nd Order Linkwitz Riley o Amplifier type: Grounded Source MOSFET, class A/B, convection cooled
Output Power
Bass 200W (8Ω), H.F. 50W (8Ω) o THD+N: <0.0017%/-95dB (1kHz, 1dB below rated power, 90kHz BW) o 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 rear panel markings and labels!
Power Consumption
Idle 26W/41VA, 1/8th Power 116W/161VA, Full Power 312W/398VA
Heat Output
Idle 89BTU/hr, 1/8th Power 311BTU/hr, Full Power 382BTU/hr
Physical Specifications
Net Weight
27kgs/59.5lbs
Gross Weight
31.3kg / 68.9lbs
Carton Dimensions (LxWxH)
56 x 38 x 60cm / 22 x 15 x 23 ½ inches
A carton contains a single speaker