The SMC45A Pro is a mid-sized three-way active loudspeaker, which can be used for both near- or mid-field positions. It shares a number of the same features of the SMC25A Pro, whilst filling the gap in ATC’s professional active monitoring loudspeaker range.

The SMC45A Pro design includes a second woofer for deeper bass response and increased SPL (Sound Pressure Level) capability, combined with a new proprietary dual-suspension tweeter for top-end resolution.

Key Features:

• 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/25W
• continuous power output

Specifications

• 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 > 10kO
• 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)

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