On last January's CES event, ATC announced their newest floorstanding loudspeaker, the SCM40A. This is an active version of their famous SCM40 model. The new SCM40A incorporates ATC's 1" soft dome dual-suspension SH25-76 tweeter, paired with the company's 3" soft dome mid-range and a 6.5" short coil/long gap bass unit. Its drivers will be powered by a proprietary ATC tri-amplifier pack which is also an upgrade version of the one found in their Pro SCM25 monitor.
According to the company, the SH25-76 tweeter incorporates a dual suspension system that's designed to "suppress" rocking modes, while the neodymium magnet comes with a black heat-treated top plate. The mid-range dome is also an edited version of the SM 75-150 (introduced in 1976). It has a hand-doped acrylic diaphragm and dual suspension system among its features. The bass driver consists of a hand-coated, carbon-paper diaphragm and is which powered by an under hung motor and features a massive, optimized magnet assembly. The SCM40A features an on-board MOSFET class AB three-channel amplifier that comes with ATC's Grounded Source output stage in charge of delivering 25W to the high frequency driver, 60W to the mid-range and 150W to the bass driver for a total of 235W power.
Note: All on-board crossovers are active, modified-Butterworth 4th-order, with phase correction circuitry for each crossover point.
If you are interested, take a look at the following features and specifications and tell us what you think about this design.
FEATURES:
- New ATC designed and built dual suspension 1" soft dome HF unit with precision alloy wave guide.
- ATC 3" Soft Dome mid-range driver.
- ATC 6.5" short coil bass driver.
- All drive units incorporate massive optimized motor assemblies.
- On-board grounded source 242 watt Class A/B Tri-amplifier.
- Active filters and overload protection.
- 6 year warranty.
SPECIFICATIONS:
- Drivers: HF ATC 25mm dual suspension Tweeter, 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
- Max SPL: 112dB
- Crossover Frequencies: 380Hz & 3.5kHz
- Connectors: Male balanced XLR
- Input sensitivity : 1V
- Filters : 4th 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, 60W MF, 32W HF
- Cabinet Dimensions (HxWxD): 980 x 370 x 344mm (spikes add 25mm, grill adds 34mm to depth)
- Weight: 36kg
Price: $12,499/pair
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