ATC SCM45A Pro The ATC SCM45A Pro is a high-performance three-way active studio monitor designed for near or mid-field applications. The ATC SCM45A Pro is a completely new design but shares some features of the highly successful SCM25A compact three-way monitor. With high output and extended frequency response that belies its size, the SCM45A Pro delivers the same tonal balance and superior detail that is associated with ATC. Designed with an unprecedented linear response across the whole audible spectrum with an emphasis on the critical midrange, the SCM45A Pro has a second woofer to significantly extend the bass response and increase its SPL capability. ATC's latest loudspeaker is the first to feature the company’s latest SH25-76S dual-suspension tweeter which delivers an increased resolution in the high frequencies. In addition, the bass driver is a brand new SB50-14 short coil design designed to work in a parallel wired pair which offers increased efficiency and reduced drive unit excursion for a much tighter sound with reduced non-linear distortion between 20Hz and 380Hz. The combination of these new technologies with the formidable soft dome midrange delivers the most detailed speaker yet. Amplification is achieved via ATC's own active Tri – AmpPack, which uses a discrete MOSFET Class A/B design with 150W for the bass driver, 60W for the midrange driver and 25W for the tweeter. Its symmetrical design means that it can be easily used as a centre monitor if required while its size makes the placement of the loudspeaker behind a console possible. Please note, we are not able to ship ATC speakers outside of the UK Specifications Mid-size very high performance active 3-way studio monitor Ideally 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 rooms ATC hand built 6.5˝/164mm carbon-paper cone bass driver. ATC 25mm/1” Dual-Suspension ‘S-Spec’ Tweeter Discrete MOSFET class A/B tri-amp pack with 150W/60W/25Wcontinuous power output Drivers: HF 1″/25mm Dual-Suspension ‘S-Spec’, 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 > 10kΩ 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)
