Factory Sealed Sonus Faber Olympica Nova 1 High-End Speakers, stands included! SPECS: System: 2-way, full para-aperiodic vented box “Stealth Ultraflex”, stand-mount loudspeaker system. Loudpseakers: Tw: H28 XTR3, Neodymium “cup design” motor system with DAD™, Ø 28 mm Mw: MW15 XTR2-04, CCAW wire on an “eddy current free” voice coil, Ø 150 mm Crossover: 2.500 Hz Frequency response: 45 Hz – 35.000 Hz Sensitivity: 87 dB SPL (2.83V/1 m) Nominal impedance: 4 ohm Suggested amplifier output: 35 W – 250 W, without clipping Max Input Voltage (IEC 268-5): 20 Vrms Dimnsions (HxWxD): 355 (1078 stand included) x 199,5 (282 stand included) x 395 mm 14 (42.4 stand included) x 7.8 (11.1 stand included) x 15.5 in Weight: 10,5 kg - net weight (17,1 Kg stand included)