Mercury F1 Custom PERFORMANCE Recommended amplifier power 10 -70 Watts RMS Continuous power handling 50 Watts RMS Peak output power 100 Watts Low frequency response 55Hz Sensitivity (2.83 volts@1m) 87dB Nominal impedance 8 Ohms Frequency response 55Hz - 20kHz DRIVE UNITS High frequency 25mm (1.00") Nitro-Urethane layer damped woven polyester dome, shielded neodymium magnet assembly Low frequency 130mm (5.00") coated multi-fibre paper pulp cone CROSSOVER Frequency 2.9kHz Type 4th order acoustic linkwitz-riley CONSTRUCTION Enclosure type Front reflex. 15mm (0.59") particle board, internally cross-braced enclosure. Shielding Yes Volume 6.6 litres (0.24 cubic feet) Weight 4.0kg (8.8lbs) Dimensions (H x W x D) 300 x 170 x 220mm (11.75 x 6.75 x 8.75”) Finish Apple or Dark Oak CULOARE DARK OAK