ATC SCM40 Active Floorstanding Speaker Pair [2nd hand]

2nd Hand

Second hand unit, in excellent condition, both for the cabinet and for the speakers and also for the electronics, with light signs of use on the feet, as also visible in the photo in the image section, with original packaging, 1 year warranty.

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5 200,00 €

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Description

ATC SCM40A Floorstanding Speaker Pair

All components are made in-house by ATC, including drivers, crossovers, and cabinets. The SCM40 offers a true 3-way design and boasts the iconic 75mm dome midrange, considered by some to be the best midrange driver ever made.

It has a very low declared sensitivity (85 dB) and an impedance of 8 Ohms—relatively easy to drive, which is why ATC recommends generous amplification, ranging from 75W to 300W. The frequency range is quite wide and extremely linear, spanning from 48 Hz to 22 kHz.

The SCM40A is an analytical and very punchy speaker that offers a very clear and detailed reproduction. In the lower range, it is punchy, visceral, powerful but never overdone: it delivers an extraordinary combination of articulation and precision. These speakers have all the characteristics of the "Pro" sound: dynamic, expressive, and physical, giving a good taste of the thrill you experience at live concerts.

The closed-box cabinet is extremely massive to ensure extraordinary precision in sound reproduction. Completing the design is the protective metal grille with magnetic attachment, clearly derived from studio monitors, allowing excellent air flow permeability.

The SCM40A is a 3-way speaker with the famous drivers designed and manufactured in-house by ATC.

The tweeter is a 25mm soft dome with a neodymium magnet and a precision alloy waveguide. Interestingly, the company avoids using ferrofluid damping found in most tweeters, opting for proprietary technology. The crossover point is at 3.5 kHz.

The legendary 75mm midrange driver is considered by many to be the best midrange driver ever made. The dome is a doped acrylic diaphragm on a highly linear double suspension system, designed to provide uniform dispersion, wide bandwidth, and low distortion. Since both upper drivers are domes, they have similar acoustic properties, offering a correct phase relationship between the critical mid-band and the lower treble range, where the human ear is very sensitive, especially around 3.5 kHz.

Below the two domes, we find the 164mm bass driver with an SC – short-coil – design that operates below 380Hz. It features a unique design with a coated paper pulp diaphragm and a massive voice coil: this powerful motor assembly is capable of providing excellent magnetic linearity and low distortion, even at high sound levels.

The cabinet has an internal volume of 40 liters and uses the closed-box principle, in acoustic suspension, and is made with an extremely massive and inert structure; the 18mm reinforced panels are composed of three layers of MDF to provide greater rigidity and damping.

Thanks to the absence of a Bass Reflex port and the compact design, the SCM40 is easier to position in a listening room than one might think. The frequency response extension goes down to 48 Hz at -6 dB: for a complete listening experience, the active subwoofer from the same C1S line is recommended, available in the same finishes.

The infinite baffle cabinet design—i.e., closed-box, without bass reflex—allows excellent control of the bass driver over its entire operating range and, in turn, reduces non-linear distortion: thus, it can deliver bass that sounds fast, controlled, and fully representative of the audio signal.

The slightly curved side walls are designed to reduce internal reflections, and the front baffle is wider than the rear of the cabinet. On the back, there is a set of sturdy 4mm binding posts with tri-wiring capability.

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

Input Connector: XLR

Input sensitivity: IV

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 344 mm (inc. foot plinth, spikes add 25mm to height, grill adds 34mm to depth)

Weight: 36 kg

Spikes: 4 per cabinet, M8 x 1.25mm

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ATC SCM40 Active Floorstanding Speaker Pair [2nd hand]

Second hand unit, in excellent condition, both for the cabinet and for the speakers and also for the electronics, with light signs of use on the feet, as also visible in the photo in the image section, with original packaging, 1 year warranty.

Write a review

 
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