The SCM50 ASL (active) and SCM50 SL (passive) are designed to perform
at their best in the recording studio or at home with the finest
quality hi-fi equipment.
The monitors’ ability to reproduce music and speech with phenomenal
accuracy, transparency and dynamics lies mainly in the SM75-150S soft dome
midrange driver. However, recent modifications that include an upgraded
tweeter and enhanced port profile have brought about further
improvements in all performance parameters.
Each drive unit in the active model has its own dedicated and
individually matched MOS-FET amplifier, while the 234mm/9″ bass driver
incorporates ATC’s unique Super Linear Magnet technology. Our active
crossover network consists of a wide band-width, electronically balanced
input stage with high common mode rejection and very low distortion.
Like the mid and bass drivers, all electronics are designed and
manufactured in-house to create a no-compromise active system. In
passive form, the SCM50 SL provides broad and symmetrical dispersion,
excellent amplitude and phase characteristics throughout the frequency
Drivers: HF 25mm Mid 75mm LF 234mm Super Linear
Amplitude Linearity ±2dB: 70Hz – 17kHz
Frequency Response -6dB: 38Hz & 22kHz
Matched Response: ±0.5dB
Dispersion: ±80° Coherent Horizontal ±10° Coherent Vertical
Max continuous SPL @1m: 112dB SPL
Crossover Frequency: 380Hz & 3.5kHz
Input Connector: XLR
Input Impedance: >10k ohms balanced XLR
Amplifier Output: HF 50 Watts RMS MF 100 Watts RMS LF 200 Watts RMS
Overload Protection: LDR tweeter protection, plus active FET MGR (amplifiers)
Power Requirements: Voltage: 100, 115, 230 (factory set)
Power: Nominal 90 Watts, Driven 350 Watts
Cabinet Dimensions(HxWxD): 717 x 304 x 480mm including amps (stands add 250mm to height)
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