Description
ATC SCM19A
Proper active loudspeakers have the crossover arranged at ‘line level’ in from of the power amplifiers and the power amps connected directly to the drivers. The SCM19A is a proper active speaker and has the audio signal fed to the XLR socket on the back of the loudspeakers
ATC make suitable preamplifiers but we also know that Naim and Linn ones are extremely well suited to these duties too. This includes Auralic, Linn DS products and Naim Uniti Atom Headphone Edition.
Overview
- New ATC designed and built dual suspension 25mm soft dome HF unit with precision alloy wave guide.
- “SL” spec bass driver with 75mm integral Soft Dome.
- 9kg optimised short-coil/long gap motor assembly.
- On-board grounded source 182 watt Class A/B Bi-amplifier.
- Active crossover filters and overload protection.
- 6 year warranty.
ATC SCM19A specifications:
Drivers: HF ATC 25mm dual suspension Tweeter, Mid/LF ATC 150mm SL
Matched Response: +/- 0.5dB
Frequency Response (-6dB): 54Hz-22kHz
Dispersion: ±80° Coherent Horizontal, ±10° Coherent Vertical
Max SPL: 108dB
Crossover Frequency: 2.5kHz
Connectors: Male XLR
Input sensitivity: 1V
Filters: 2nd Order critically damped with phase compensation
Overload Protection: Active FET momentary gain reduction
Fault Protection: DC fault protection and thermal trip. Fault indication on rear panel mounted LED
Amplifier Output: 150W LF, 32W HF
Dimensions (HxWxD): 980 x 370 x 344mm (inc. foot plinth & amp, spikes add 25mm to height, grill adds 34mm to depth)
Weight: 31kg
ATC was founded in London in 1974 by Australian émigré Bill Woodman. An enthusiastic pianist and engineer he was naturally drawn to loudspeaker design and, after a period working at Goodmans (where many of the names that went on to found British loudspeaker companies began their careers), he struck out on his own. The premise on which ATC began is a simple one – and one that, in many respects, is still true today: hi-fi loudspeakers tend to be detailed and accurate, but of limited dynamic range, while professional monitor speakers tend to express the opposite character. ATC products were designed from the outset to offer the best of both. It’s an easy concept to describe, but surprisingly difficult to engineer. The difficulty inherent in designing such loudspeakers is one of scale. Hi-fi levels of accuracy and detail call for lightweight moving parts and delicate engineering. Professional monitor levels of performance, however, demand far series more robust components engineered to survive the rigours of high level use for extended periods.The only way to combine the two is through precision engineering of a class and scale more often associatedwith aerospace or motorsport. But the results are worth the effort and the cost. ATC loudspeakers, with their unique in-house designed drivers, combine the best of hi-fi and professional to devastating effect.ATC has become synonymous with active systems. Choosing to offer active loudspeakers (where the passive systems still have their place, and ATC engineering skills can still bring remarkable results from them) is a fundamentally better solution to the problems posed by accurate, high level music reproduction.The ATC instinct is always for the better solution. Not cheaper, not quicker, but better.
