ATC Loudspeakers SCM45A's unrivaled precision, articulate and controlled sound deliver the performance needed from studio monitors to create complex and well balanced mixes.
The SMC45A Pro, ATC's mid-sized three-way active loudspeaker in the SCM range, can be placed in both near- or mid-field positions. It shares many features with the SMC25A Pro, and completes ATC's professional active monitoring loudspeaker range. Producing an excelent linear response across the midrange, the 45A's design includes a second woofer for an extended bass response and increased SPL (Sound Pressure Level) capability, The proprietary dual-suspension tweeter that creates the high top-end resolution is the result of six years of research and development by ATC Managing Director Billy Woodman and R&D Engineer Richard Newman.
Mid-size very high performance active 3-way studio monitorIdeally suited to:- critical near-field listening applications in all control rooms- LCR surround monitoring in medium control rooms- surround channels in medium-to-large contol roomsATC hand built 6.5/164mm carbon-paper cone bass driver.ATC 25mm/1" Dual Suspension Super TweeterDiscrete MOSFET class A/B bi-amp pack with 150W/60W/25W continuous power output
Drivers: HF 1/25mm soft dome, Mid 3/75mm Soft Dome, LF 6.5/164mm short-coil carbon paper cone
Amplitude Linearity (±2dB): 70Hz-17kHz
Cut-off Frequencies (-6dB, free-standing): 42Hz-25kHz
Dispersion: ±80° Coherent Horizontal, ±10° Coherent Vertical
Max. Continuous SPL (1 metre): 112dB
Audio Input: Rear panel mounted female xlr (pin 2 +)
Input Sensitivity: 1V rms (ref. full output)
Input Sensitivity Trim: 0dB to -6dB/1V - 2V (continuously variable via rear panel trimmer)
Input Impedance: Balanced > 10k
Amplifier Output Power: Bass 150W rms, Mid 60W rms, High 25W rms
Crossover Frequencies: 380Hz & 3.5Khz
Crossover Filters: 4th order critically damped with phase compensations
Low Frequency Boost: 0dB to +3dB at 40Hz (continuously variable via rear panel trimmer)
Overload Protection: Active FET momentary gain reduction
Dimensions (HxWxD): 353 x 600 x 375mm (13.9 x 23.6 x 14.8). Handles add an additional 39mm/1.5 to depth.
Weight: 36kg / 79.2lbs (per cabinet)