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Revel Concerta F12 loudspeaker:
Sidebar 1: Specifications
Description: Three-way, rear-ported, floorstanding loudspeaker. Drive-units (all Organic Ceramic Composite diaphragms): 1" ferrofluid-damped dome tweeter with underhung copper-clad aluminum voice-coil, 5.25" magnetically shielded midrange unit with 1" voice-coil, two 8" cone woofers with 1.5" voice-coils. Crossover frequencies: 575Hz, 3kHz. In-room response and first-reflections response, 55Hz–15kHz, ±1.5dB. Low-frequency extension: –10dB at 28Hz, –6dB at 40Hz, –3dB at 52Hz. Impedance: 6 ohms nominal, 3.7 ohms minimum at 188Hz. Sensitivity: 90.5dB/2.83V/m (4pi anechoic).
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