Heco Celan Revolution 7 3-way column speaker system, bass reflex Contents & compatibility: What's in the box - Heco Celan Revolution 7, User guide Important features: Amplifier power - 220/350 Watts (per channel) Frequency response - 21 - 52.000 Hz Nominal impedance: - 4-8 Ohm Sensitivity - 92dB Drivers - 2x6.5" woofer, 6.5" mid-bass, 1.2" tweeter.
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