ATC Launches SCM20ASL 2-Way Active Standmount Speakers
All Image Credit: ATC
ATC have just announced their active flagship 2-way SCM20ASL stand-mount loudspeaker that is based on ATC’s 50th-anniversary Limited Edition design. The 2-way SCM20ASL standmount cabinet design features ATC’s in-house drive units with matched amplification. It is available in a large range of standard and custom colors to include; Black ash (natural only), Burr Magnolia, Cherry, European Walnut, Oak, Pippy Oak, Rosewood, Satin Black, Satin White and Walnut in both natural and gloss finishes with a removable grille covered in black acoustically transparent cloth. This model is also available in passive and tower versions
The 20 liter 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 minimize cabinet coloration. It houses a proprietary 6 inch (150mm) Super Linear Mid/Bass driver that employs a large (3 inch/75mm) voice coil and short-coil (long-gap) motor assembly featuring ATC’s ‘SL’ motor technology, said to reduce distortion from the upper bass into the midrange. It is paired with ATC’s 1inch (25mm) ‘S-Spec’ soft-dome tweeter, which marries a dual suspension design with a high-energy 2.1-tesla motor. The mid/bass driver is fed by 200 watts (8Ω) while the tweeter receives 50 watts (8Ω), both from Class AB MOSFET amplifiers, creating a claimed acoustical frequency response of 55Hz-25KHz (-6dB).
Crossover between the two drivers occurs at 2.2KHz, and is achieved using an active analogue 2nd-order Linkwitz-Riley filter operating at line-level. An all-pass filter is included to “optimize the phase response” through the crossover region, that is said to improve tonal balance and imaging.
The rear panel supports; 1 x balanced XLR input and controls for input sensitivity and a low-frequency shelf cut/boost control.
Features At A Glance:
- 150mm/6” ATC ‘Super Linear Mid/Bass driver loaded in a compact sealed cabinet.
- 25mm/1” ATC ‘S-Spec’ soft-dome dual-suspension HF driver.
- On-board ATC active 250W ‘Amp Pack’ module.
- Balanced input and 2nd order Linkwitz-Riley active crossovers.
- User adjustable input sensitivity and bass shelf controls.
- 2 x Class A/B MOSFET power amplifiers, 200W Mid/Bass and 50W high frequency.
- Hand-built in England.
- 6-year warranty.
Specifications:
- Acoustic:
- 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)
- High Frequency Cut-off: 25KHz (-6dB)
- Crossover Point: 2.2KHz
- Max SPL: 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:
- Balanced Input: 1 x Rear Panel Mounted Female XLR, pin 2 hot
- Input Impedance: 20kΩ (balanced)
- Input CMRR: >60dB at (10kKHz)
- Input Sensitivity: 2.2dBu/1Vrms for full power
- Input Sensitivity Control: -6dB switchable, -6dB variable. Total adjustment 2.2dBu/1Vrms to 14.2dBu/4Vrms
- 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%/-95dB (1kHz, 1dB below rated power, 90kHz 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.
- Power Consumption: Idle 26W/41VA. 1/8 Power 116W/116VA. Full Power 312W/398VA
- Net Weight: 27Kgs/59.5lbs
- Dimensions HxWxD: 450x250x425mm, 17 11/16” x 9 13/16” x 14 3/16”
MSRP (pair – std. finish):
- US: $9,999.00 (base price)
- UK: £6,495.00 (base price)
Read the ATC press release here.
For more information visit the ATC web site.
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