The ATC SCM100PSL is the passive speaker, optimised for use with high-end hi-fi equipment to deliver outstanding sound quality. Similar to its smaller counterpart, the SCM50, its exceptional accuracy, transparency, and dynamic performance in reproducing music and speech are largely due to the SM75-150S soft dome midrange driver. Recent upgrades, including an improved tweeter and refined port design, have further enhanced its overall performance. The bass output is equally remarkable, driven by ATC's 12" professional-grade bass driver, which utilises the brand’s exclusive Super Linear Magnet technology. In the active version, each bass, midrange, and high-frequency driver is powered by its own dedicated MOS-FET amplifier, ensuring optimal performance. Specifications Drivers: HF: 25mm, Mid: 75mm, LF: 314mm Super Linear Amplitude Linearity ±2dB: 65Hz – 17kHz Frequency Response -6dB: 35Hz & 22kHz Matched Response: ±0.5dB Dispersion: ±80° Coherent Horizontal, ±10° Coherent Vertical Sensitivity: (sine wave) 88dB @ 1W @ 1m Max Continuous SPL @1m: 115dB SPL Crossover Frequency: 380Hz & 3.5kHz Input Connector: Binding Posts/4mm banana plugs Recommended Power Amplifier: 100 to 1500 Watts Nominal Impedance: 8 ohms Accessories Included: (per pair) 2 x Speaker Stands, 2 x Fabric Wrapped Grills, 8 x Stand Spikes and Nuts Cabinet Dimensions: (HxWxD) 834 x 400 x 530mm (stands add 200mm to height) Weight: 52.1kg each, including stand