Sitting between the smaller SCM50SL and larger SCM150SL, the SCM100SL combines a 12”/314mm bass driver with a 100-litre / 3.5ft3 cabinet, to offer an extended bass response and increased dynamic range, well suited to larger rooms. It offers a significant step up in scale and output while retaining the balanced presentation fundamental to ATC loudspeaker designs.
Every critical element of the SCM100SL is designed and manufactured in-house by ATC ― from the beautifully finished cabinetry to the drive units, crossovers and amplification. This engineering-led approach ensures the highest possible performance and a loudspeaker that will deliver great enjoyment for many years to come.
The bass, mid-range and high-frequency drive units employed are ATC's premium drive units, engineered to minimise colouration and maximise dynamic range at the acoustic source. While a large loudspeaker, and lauded for its bass performance, the SCM100SL also offers exceptional mid- and high-frequency reproduction, aided by proprietary technology such as the dual-suspension system used in the 1”/25mm soft-dome tweeter — a technology first employed by ATC in the renowned 3” mid-range.
The cabinet is heavily braced and damped to suppress cabinet resonances and minimise colouration, allowing the bass driver to operate with control and clarity. It is available in a wide selection of real-wood veneers, satin painted and gloss finishes (options shown below).
The SCM100SL is available in passive (SCM100PSL) and active (SCM100ASL) versions, with the active model incorporating ATC's tri-amplified architecture to further elevate performance. Both Classic models are supplied with speaker stands and fabric-wrapped grilles.
A floor-standing 'Tower' variant is also available, offering identical performance but in a floor-standing cabinet format.
The featured speaker above is finished in pippy oak veneer; other finish options are shown below.
The active SCM100ASL features an on-board 350W 3-way amplifier pack with balanced line input. It can be partnered with a standalone pre-amplifier and separate sources, or with an integrated streaming pre-amplifier where system simplicity is a priority.
The amplifier employed by the SCM100ASL is designed and manufactured by ATC, matched to the exact requirements of the loudspeaker drivers and calibrated for precise system performance. The line-level stages comprise a balanced input and 3-way electronic crossover, including all-pass filters for optimal driver integration in both time and level. Each class A/B power amplifier channel is dedicated to a single drive unit.
The active electronic crossover delivers a more consistent balance over a wider range of listening levels, together with more precise and stable stereo imaging. Multiple power amplifiers, directly coupled to the drive units, provide more controlled low-frequency performance and greater peak SPL capability than an equivalent passive system.
The active model is also available in a floor-standing cabinet format as the SCM100ASLT.
12”/314mm ATC 'SL' BASS DRIVER LOADED IN 100 LITRE VENTED CABINET.
3”/75MM ATC SUPERDOME MID-RANGE.
25MM/1" ATC 'S-SPEC' SOFT-DOME DUAL-SUSPENSION HF DRIVER.
ON-BOARD ATC ACTIVE 350W 'AMP PACK' MODULE.
BALANCED INPUT & 4TH ORDER LINKWITZ-RILEY ACTIVE CROSSOVERS.
USER ADJUSTABLE INPUT SENSITIVITY & BASS SHELF CONTROLS.
3 X CLASS A/B MOSFET AMPLIFIERS, 200W BASS, 100W MID & 50W HIGH FREQUENCY.
HAND-BUILT IN ENGLAND
6 YEAR WARRANTY
ACOUSTIC SPECIFICATIONS
Bass Driver: 1 x 12"/314mm, SB75-314SL 8Ω
Mid Driver: 1 x 3"/75mm, SM75-150S 16Ω
High Frequency Driver: 1 x 1"/25mm, SH25-76S 6Ω
Low Frequency Cut-off: 32Hz (-6dB)
High Frequency Cut-off: 25kHz (-6dB)
Matched Response: +/-0.5dB
Crossover Points: 380Hz and 3.5kHz
MaxSPL: 115dB
System Sensitivity: TBC
ELECTRONIC SPECIFICATIONS
Balanced Input: 1 x Rear panel mounted female XLR, pin 2 hot
Input Impedance: 20kΩ (differential)
Input CMRR: >TBC dB (at 10kHz)
Input Sensitivity: 2.2dBu/1Vrms (Re. full power)
Input Sensitivity Control: 0db, -3dB, -6dB, -9dB (via rear panel DIP switches)
Bass Shelf: 0dB, +1dB, +2dB, +3db (via rear panel DIP switches)
Crossover Filters: 4th Order Linkwitz-Riley
Amplifier Type: Grounded Source MOSFET, class A/B, convection cooled
Output Power: Bass 200W (8Ω), Mid. 100W (16Ω), H.F. 50W (8Ω)
THD+N: <0.0011% / -98dB (1kHz, 1 dB below rated power, 90kHz BW)
Frequency Response: <10Hz to>175kHz (-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 34W/51VA. 1/8th Power 149W/198VA. Full Power 345W/426VA
Heat Output: Idle 116BTU/hr, 1/8th Power 423BTU/hr, Full Power 495BTU/hr
PHYSICAL SPECIFICATIONS
Net Weight: 55.2kg / 121.7lbs
Speaker & Stand Dimensions (HxWxD): 1034x398x581mm / 403/4 x 15 5/8 x 22 7/8 inches (stands spikes add 25-40mm/1" - 1 3/5" to height)
Speaker Dimensions (HxWxD): 834x398x581mm / 32 7/8 x 15 5/8 x 22 7/8 inches
See datasheet for detailed dimensions.
The passive SCM100PSL delivers the accuracy, realism and dynamic capability associated with ATC in a configuration that can be partnered with a high-quality integrated or power amplifier of the owner's choice.
Its 3-way crossover network is meticulously optimised and hand-built by ATC using premium tight-tolerance film capacitors and ATC's proprietary air-cored inductors for extremely low distortion, even at high drive levels. Connection to the crossover is made via heavy-duty tripwire terminals.
The loudspeaker's neutral fidelity, outstanding resolution and ease of drive ensure excellent compatibility with a wide range of high-quality electronics. Pairing with ATC pre/power or integrated amplifiers offers exceptional system synergy.
The passive model is also available in a floor-standing cabinet format as the SCM100PSLT.
ACOUSTIC SPECIFICATIONS
Bass Driver: 1 x 12"/314mm, SB75-314SL 8Ω
Mid Driver: 1 x 3"/75mm, SM75-150S 16Ω
High Frequency Driver: 1 x 1"/25mm, SH25-76S 6Ω
Low Frequency Cut-off: 32Hz (-6dB)
High Frequency Cut-off: 25kHz (-6dB)
Matched Response: +/-0.5dB
Crossover Points: 380Hz and 3.5kHz
MaxSPL: 112dB
System Sensitivity: 88dB/W @1m
ELECTRONIC SPECIFICATIONS
Recommended Amplifier Power: >100W (8Ω)
Impedance: 8Ω nominal / 5.6Ω minimum
PHYSICAL SPECIFICATIONS
Net Weight: 48.4kg / 106.7lbs
Speaker & Stand Dimensions (HxWxD): 1034x398x529mm / 403/4 x 15 5/8 x 20 13/16 inches (stands spikes add 25-40mm/1" - 1 3/5" to height)
Speaker Dimensions (HxWxD): 834x398x529mm / 32 7/8 x 15 5/8 x 20 13/16 inches
See datasheet for detailed dimensions.
