ATC, Acoustic Transducer Company, is a specialist British manufacturer of loudspeaker drive units and complete sound reproduction systems, including the relevant electronic equipment. ATC designs and manufactures loudspeaker drive units and systems to achieve levels of performance far in excess of the industry norm.  This is achieved by adopting a thoroughly professional engineering approach to the issue of basic design, materials science and production technology.

Features

• New ATC designed and built 25mm soft dome HF unit with precision alloy wave guide
• ATC 164mm bass driver
• Massive optimised motor assembly
• ATC Soft Dome mid-range driver
• Flat impedance curve allowing easy load for amplifiers
• 6 year warranty

The ATC SCM40 passive Loudspeakers the largest most powerful speakers in their entry range of speakers. Typically, amplifiers with power outputs of 75W+ (continuous output) will give the best results with these speakers.  

(The SCM40 are also available as a Active Loudspeaker the SCM40ASL)

Specifications

Drivers:	HF ATC 25mm Neodymium, Mid 75mm ATC Soft Dome, LF ATC 164mm SC
Matched Response:	±0.5dB
Frequency Response (-6dB):	48Hz-22kHz
Dispersion:	±80° Coherent Horizontal, ±10° Coherent Vertical
Sensitivity:	85dB @ 1W @ 1 metre
Max SPL:	112dB
Recommended Power Amplifier:	75 to 300 Watts
Nominal Impedance:	8 Ohm
Crossover Frequencies:	380Hz & 3.5kHz
Connectors:	Binding Posts/4mm Plugs, tri-wire
Dimensions (HxWxD):	980 x 370 x 305mm (inc. foot plinth, spikes add 25mm to height, grill adds 34mm to depth)
Weight:	31kg