ATC SCM110A Pro – Pair

Dual 9-inch, active 3-way speaker with SL woofer

$21,490.00

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12-Month Special Financing**

SKU: ATCSCM110APRO Categories: , Tag Brand:

Description

ATC SCM110A Pro is an active 3-way reference monitor designed for soffit or stand mounting with dual 9″ Super Linear woofers and 350W tri-amplification

While the ATC SCM110A Pro reference monitor weighs in at 250 pounds, is a compact monitor for its category. An active 3-way monitor powered by ATC’s 350-watt tri-amp pack, the SCM110A Pro is designed with high-resolution recording in mind for both stereo and multi-channel systems. The SCM110A Pro features two proprietary 9″ Super Linear bass drivers, as well as ATC’s innovative and hand-built Super-Dome 3″ midrange driver, and 1″ dual-suspension soft-dome tweeter. Drivers are matched to six MOSFET amplifier blocks, which provide unparalleled dynamic range and excellent transient response. The SCM110A Pro also has a low-frequency contour control with 6dB bass boost. While maintaining the exacting performance criteria of ATC’s taller models, including an amplitude linearity of 50Hz-20kHz (±2 dB), the SCM110A Pro has a low-profile cabinet for better sight lines in the control room.

ATC SCM110A Pro reference monitor in one take:

 ATC’s proprietary 1″ dual-suspension “S-Spec” tweeter

  • Twin full Super Linear “SL-spec” 9″ bass drivers
  • ATC 3″ “Super Dome” mid driver
  • Onboard ATC grounded-source, 350W tri-amp pack
  • Low-frequency contour control
  • Clip indication
  • 6-year warranty

Who Using ATC?

ATC users range from artists such as Sting, Pink Floyd, The Rolling Stones, Eric Johnson, Enya, Kate Bush, film composer, James Newton Howard, and many more. ATC users include producer-engineers known for their discriminating ears, such as Bruce Swedien, Hugh Padgham, Chuck Ainley, Ed Cherney, producer-engineer-equipment designer, George Massenburg, mastering engineer Bob Ludwig, and John McBride of Blackbird Studios. ATC monitors are also in use at recording studios, soundstages and broadcast facilities, such as East West Studios, Air London, Sony Music Studios, Paramount Studios, Warner Brothers, and BBC UK, to name a few. Even pro audio equipment manufacturers who depend on critical listening for product design depend on ATC, including Shure Microphones and Dolby Laboratories.

ATC Technology:

ATC makes what many consider to be the world’s finest studio monitors, as evidenced by a client list that reads a who’s who of artists, engineers, recording studios, film, post, and broadcast facilities, as well as pro audio manufacturers and educational institutions. Obviously, it takes an attention to fine detail and proprietary technology. Let’s take a closer look at ATC technology.

Linear off-axis response:

To achieve superior loudspeaker performance, there must be a balance between all measured characteristics, including magnitude response, phase response, power response, time domain response, distortion characteristics, and power handling.

Starting with the off-axis response of the loudspeaker, ATC engineers ensure that the phase relationship of the drivers maintain a linear response.

Bass/mid driver soft dome

Soft domes are fixed to the edge of the voice coil, which is 3″ (75mm) in diameter. The dome is designed to decouple from the cone at higher frequencies, where it performs the role of the primary acoustic radiator.

Proprietary soft dome tweeter

In order to maintain the highest levels of performance, ATC controls all aspects of the loudspeaker system to ensure the lowest levels of linear and non-linear distortion. Along with manufacturing their own bass, bass/mid, and midrange drivers, ATC couldn’t rely on OEM or stock designs, and spent considerable time creating a soft dome tweeter to meet their high standards.

Proprietary soft dome tweeter

 In order to maintain the highest levels of performance, ATC controls all aspects of the loudspeaker system to ensure the lowest levels of linear and non-linear distortion. Along with manufacturing their own bass, bass/mid, and midrange drivers, ATC couldn’t rely on OEM or stock designs, and spent considerable time creating a soft dome tweeter to meet their high standards.

Nearly all 1″ (25mm) tweeters use a voice coil suspended in the magnetic gap of the motor immersed in ferro-fluid. The fluid adds mechanical damping, transferring heat to the metalwork and suppressing rocking modes. Over time the fluid starts to thicken presenting resistance to the moving coil assembly, causing the magnitude response to decline.

ATC endeavored to design a tweeter free from the limitation of ferro-fluid while simultaneously overcoming the engineering problems that arise without its use. As with all ATC drivers, the tweeter was approached with optimum performance in mind.

Borrowing the dual suspension technology from their midrange soft dome, which forces the use of a larger voice coil, ATC used extremely large, high-grade neodymium magnets in the motor assemblies to get the required efficiency and top-end extension. ATC also heat-treats the top plate (magnetic annealing) to squeeze that bit extra performance out of the components. Large, well-designed motors mean lots of flux in the gap, which in turn results in extremely low odd-harmonic distortion, an extended magnitude response, and an excellent time-domain characteristic.

Bass/Mid driver construction

ATC drivers feature massive magnet motor assemblies, with no-compromise optimization for each voice coil diameter. Hand-wound voice coils use only high-density, edge-wound, flat OFHC (oxygen-free high thermal conductivity) ribbon copper wire and operate in precision magnetic gaps. Front and rear venting not only reduces airflow noise, but also increases power handling capacity, and therefore, long-term reliability.

Speaker directivity

 The perceived sound quality of a loudspeaker is dependent on its power response, particularly when listening to high-energy transients. As such, high-performance loudspeakers should exhibit a broad and even dispersion with frequency—a factor that ATC takes great care to achieve.

ATC’s largest bass/mid driver is 6.5″ with a crossover of around 2.5kHz, which ATC engineers consider to be a practical limit in a 2-way. In a 2-way system capable of high dynamic range, an ideal crossover point has to be compromised a little to minimize HF driver distortion and increase reliability. If the bass/mid driver was significantly larger, it would become more directional, causing the horizontal response around crossover to suffer. As driver diameter increases to achieve greater bass extension and higher SPL, maintaining good off-axis response would require the move to a three-way system.

Short throat waveguide

ATC tweeters have a carefully designed short-throat waveguide. Deeper throats would affect the balance of the device, both on- and off-frequency, and if taken to the extreme would further increase distortion. At the chosen crossover frequency, ATC’s 25mm tweeter effectively radiates omni-directionally as desired.

In summary

ATC believes that the key to superior performance is designing drivers and systems for use at high levels, and not rigidly adhering to known reference levels for testing. The parameters of drivers vary with level. As such, ATC designs for those changes. Performance at 1W or 90dB SPL is relatively easy, but what happens at 100W or 110dB SPL? ATC knows and designs for it.

 If you’re ready to make the leap to ATC monitoring, talk to your Westlake Pro sales consultant about outfitting your studio with ATC SCM110A active reference monitors today. 

 

ATC SMC110A Pro specifications:

  • Drivers: HF 1″; Mid 3″; LF 2x 9″
  • Amplitude Linearity (±2dB): 50Hz-17kHz
  • Cut-off Frequencies (-6dB, free-standing): 30Hz, 22kHz
  • Horizontal Dispersion: ±80°, Coherent
  • Vertical Dispersion: ±10°, Coherent
  • Max. Continuous SPL (1 meter): 115dB
  • Crossover Frequencies: 380Hz, 3.5kHz
  • Input Connectors: Male XLR
  • Input Sensitivity: 1V
  • Input Sensitivity Trim: 0dB to -6dB/1V – 2V (continuously variable via rear panel trimmer)
  • Input Impedance: Balanced > 10k ohm
  • Amplifier Output: Bass 200W, Mid 100W, High 50W
  • Filters: Even-order critically damped
  • Overload protection: Active FET momentary gain reduction plus thermal tweeter protection
  • Front-panel Indicators: Power On indicator, Gain Reduction warning
  • LF EQ: 0dB to+6dB @ 40Hz (continuously variable via rear panel trimmer)
  • Dimensions (H x W x D): 28-3/16″ x 24-1/2″ x 16-1/2″ /715 x 625 x 420mm (depth with amplifier at rear adds 3″)
  • Weight: 160.6 lb. 73kg

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