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• Overview – ATC SCM20SL is a passive sealed-box two-way studio loudspeaker, engineered for absolute accuracy, low coloration, and linear phase response favored by professionals.
• Sound Character – Renowned for exceptional midrange neutrality, fast transient response, and tight acoustic-suspension bass, the ATC SCM20SL excels in nearfield or compact room audiophile listening environments.
• Driver Technology – ATC SCM20SL features ATC’s legendary 150mm Super Linear mid-bass driver and 25mm soft-dome tweeter, delivering low distortion, high dynamic headroom, and reference-grade vocal realism.
• Specifications – Nominal impedance 8 ohms, sensitivity approximately 85dB/W/m, recommended amplifier power 75–300W, sealed enclosure design ensuring controlled bass and consistent performance across varied room placements.
• Dimensions – Cabinet measures approximately 446 mm (H) × 238 mm (W) × 375 mm (D), offering a compact yet substantial monitor footprint suitable for stand-mount or studio console installations.
• Weight – Each loudspeaker weighs approximately 24 kg, reflecting dense cabinet construction and heavy internal bracing designed to minimize resonance and maximize midband clarity.
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ATC (Acoustic Transducer Company), a British engineering powerhouse, was founded in 1974 by innovative loudspeaker designer Billy Woodman. Initially focused on crafting custom drive units for the professional audio sector, the company quickly gained acclaim with its 12-inch PA75-314 driver, renowned for superior power handling and minimal distortion at high sound pressure levels. In 1976, ATC introduced the groundbreaking SM75-150 soft dome midrange driver, revolutionizing dispersion, bandwidth, and clarity in studio monitors.
The brand specializes in high-precision loudspeakers, designing and manufacturing its own drivers—including tweeters, midrange, and bass units—in-house for both professional and home applications. Its SCM series offers a spectrum from compact models like the SCM7 to larger formats, available in active and passive configurations. ATC also produces standalone electronics, such as preamplifiers, power amplifiers, and integrated amps like the SIA2-150, all built to uncompromising standards of accuracy and reliability.
ATC commands a elite position in the high-end hi-fi market, revered by recording studios worldwide for its transparent, detail-revealing monitors and by discerning audiophiles for domestic speakers that deliver reference-grade performance. A professional ethos, advanced materials, and innovations like the Super Linear Driver—slashing distortion in the vocal range—cement its status as a boutique leader, where precision engineering trumps mass production.
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