Stated impedance is 8 ohms for the ATC vs 4 ohms for the Aerial. (Of course, this does not translate into twice as much bass.) ATC claims a sensitivity of 85dB for the SCM 11 vs Aerial's claim of 86dB for the 5B. Perhaps more importantand I keep making a point of this because I think it's both nonintuitive and often overlooked by audiophiles while shoppingthe Aerial 5B's 7.1" mid/woofer has just about twice the surface area of the ATC SCM 11's 6" cone: 39.59 vs 19.63 in 2. So the ATC's cabinet is about 10% larger. The Aerial 5B measures 13" high by 7.9" wide by 10.8" deep, displaces 1109 in 3, and weighs 22 lbs. The ATC SCM 11's cabinet measures 15" high by 8.3" wide by 9.8" deep, displaces 1220 in3, and weighs 17.6 lbs. A recess in the rear panel holds two pairs of sturdy, knurled, non≮C-compliant binding posts of brass, with brass jumpers installed for single-wiring.ĪTC's SCM 11 and Aerial Acoustics' 5B (which I wrote about in June) are variations on the same themesealed-box, stand-mounted two-ways costing about $2000/pairso it seemed reasonable to compare them. Black fabric grilles on MDF frames attach to the speaker with plastic pins, but I didn't use them. The baffle is made of some sort of composite, and finished in a soft piano-black semigloss.
Atc scm11 version 2 drivers#
Although the cabinets of the review pair I received were veneered in cherrywood (with exceptional matching across the pair), the drivers are inset in a baffle board that sits proud of the cabinet face and covers all but its bottom few inches (which are veneered). The SCM 11 is a stand-mounted two-way design with a 1" soft-dome tweeter with a neodymium magnet structure and a waveguide of some proprietary alloy, and a 6" mid/woofer. Nonetheless, the SCM 11's CLD cone is claimed to reduce distortion between 300Hz and 3kHz by an unstated amount. Super Linear technology is claimed to reduce third-order harmonic distortion 10≡5dB between 100Hz and 3kHz, which makes me eager to hear it. The SCM 19 costs $3150/pair, which puts it outside the limits of this hunt for affordable systems (though it looks very tempting). The SCM 11 has Constrained Layer Damping (CLD) on its cone but doesn't share the Super Linear magnet technology found in the SCM 19, a superficially similar two-way with the same size woofer in a larger cabinet. (ATC's larger designs are ported.)ĪTC's lineup of consumer speakers includes one model below the SCM 11, the SCM 7, which has a 5" mid/woofer and costs $1050/pair. I didn't realize until I removed the SCM 11 from its cloth bag that its bass loading is sealed-box had I known that, I would have requested them even earlier. I requested a pair of ATC's SCM 11 passive monitors because its price of $1750/pair in real cherry veneer (or $1850/pair in black ash) fit into my quest to find affordable systems in the $2500$3750 range. ATC loudspeakers are all still made in the UK, and were a favorite of the late J.
Atc scm11 version 2 professional#
The venerable British company ATC Loudspeaker Technology was founded in 1974 by Billy Woodman, and is famous within the professional community for developing the first soft-dome midrange driver, and for their well-regarded line of active (powered) studio monitors, the user list of which is a veritable Who's Who of mastering engineers.
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