12" 3-Way Active Main Monitor Daily Rate: call us

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A powerful three-way design

The ATC SCM100ASL has separate LF, MF, and HF drivers to cover a wide frequency range, with electronic crossovers that virtually eliminate phase incoherence. The tri-amped design provides a powerful 200 watts for low frequencies, 100 watts for mids, and 50 watts for highs. You'll enjoy incredibly wide dynamic range, very fast transient response, and an exceptionally sharp stereo image - everything you need to make final mastering decisions with confidence.

Proprietary speakers offer life-like playback

Great-sounding monitors start with great-sounding speakers. The ATC SCM100ASL's low and mid drivers are manufactured to exacting standards at their in-house facility. Hand-wound voice coils are made from flat oxygen-free copper wire and operate in a precision long magnetic gap. Specially designed magnet vents not only reduce air flow noise and heat, but increase power handling and reliability. These drivers are designed to give you a smooth and even frequency response without built-in EQ. In short, the SCM100ASL was designed to perform and sound better.

ATC's history of world-class audio

ATC has focused on one thing - creating the best speakers possible - since 1974. In the SCM100ASL, you'll find that every component was designed for maximum accuracy and sonic clarity. For example, ATC's electronic crossover has built-in phase correction, solving a problem that cause smeared audio or a lack of definition. And ATC's famous Super Linear Drivers reduce harmonic distortion by 10-15dB compared to similar speakers, which means you'll hear every nuance of your audio exactly as it was recorded and mixed. These are just a couple of reasons you'll find ATC monitors in the studios of the most discerning engineers on the planet.

Ready for professional use

The size and design of the ATC SCM100ASL active monitors make them ideal as midfield monitors in medium- to large-size control rooms. While the SCM100ASL will sound "great" in almost any room, you'll want to make sure you're placing them in the correct configuration for maximum accuracy in your specific acoustic space. Call your Sweetwater Sales Engineer to learn more about control room design, acoustic treatment, and monitor management, to make sure that you'll be getting the most out of your ATC SCM100ASL active monitors.


  • Premium 3-way active studio monitors
  • Extremely accurate and life-like playback of your recordings
  • Proprietary speakers
  • 350W tri-amped monitor
  • Engineered to give you the best playback possible
  • Used by many professional engineers, producers, artists and studios
  • Sold as a pair


  • Powered: Yes
  • Power Configuration: Tri-amped
  • LF Driver Size: 12.4" (Low), 3" (Mid)
  • LF Driver Type: ATC Custom-built "Super Linear" Driver
  • HF Driver Size: 1"
  • HF Driver Type: Dome
  • LF Driver Power Amp: 200W (Low), 100W (Mid)
  • HF Driver Power Amp: 50W
  • Total Power: 350W
  • Frequency Range: 32Hz-20kHz
  • Crossover Frequency: 380Hz, 3.5kHz
  • Maximum Peak SPL: 112 dB
  • Input Types: 1 x XLR
  • Enclosure Type: Ported (Front)
  • Height: 32.8"
  • Width: 15.7"
  • Depth: 22.9"
  • Weight: 143 lbs.
  • Manufacturer Part Number: SCM100ASL


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