As such, high-performance loudspeakers should exhibit a broad and even dispersion with frequency-a factor that ATC takes great care to achieve.ĪTC’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. The perceived sound quality of a loudspeaker is dependent on its power response, particularly when listening to high-energy transients. Front and rear venting not only reduces airflow noise, but also increases power handling capacity, and therefore, long-term reliability. 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.
#ATC SCM 12 DRIVERS#
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.ĪTC drivers feature massive magnet motor assemblies, with no-compromise optimization for each voice coil diameter. ATC also heat-treats the top plate (magnetic annealing) to squeeze that bit extra performance out of the components. As with all ATC drivers, the tweeter was approached with optimum performance in mind.īorrowing 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 SCM 12 FREE#
Over time the fluid starts to thicken presenting resistance to the moving coil assembly, causing the magnitude response to decline.ĪTC endeavored to design a tweeter free from the limitation of ferro-fluid while simultaneously overcoming the engineering problems that arise without its use. The fluid adds mechanical damping, transferring heat to the metalwork and suppressing rocking modes. Nearly all 25mm tweeters use a voice coil suspended in the magnetic gap of the motor immersed in ferro-fluid. 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.
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. Starting with the off-axis response of the loudspeaker, ATC engineers ensure that the phase relationship of the drivers maintain a linear 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. Let’s take a closer look at ATC technology. Obviously, it takes an attention to fine detail and proprietary technology.
#ATC SCM 12 PRO#
The SCM12P Pro also incorporates ATC’s SH25-76 tweeter, which employs a unique dual-suspension system that eliminates the need for ferro-fluid, which can cause a decline in high-frequency performance as it thickens. The SCM12P Pro features ATC’s Constrained Layer Damping (CLD), which brings significant performance improvements to bass/mid drivers, by reducing harmonic distortion in the critical midrange, improving frequency response, as well as dispersion. The most affordable monitor in the ATC line, the SCM12P is the result of several innovative ATC driver technologies. The ATC SCM12P Pro compact passive monitor brings world-class ATC monitoring to home and project studios.
Description ATC SCM12P Pro passive studio monitor
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