Specifications (Specifications and design features are subject to change.) Dimensions H × W × D 1,311 × 290 × 325 mm Gross Volume 61 l Weight 44 kg Principle 4½-ways, bass reflex Woofers Bass Port 3 × 180 mm AS cone LLD 1 × 70 mm Midrange 1 × 50 / 105 mm ring radiator with flat aluminium honeycomb diaphragm Tweeters 1 × JET III* and 1 × 4Pi II ribbon Recom. Amplifier Power at Nominal Impedance 100-500 W / channel Crossover Frequencies 150 / 400 / 2,500 Hz and 16; 12; 9; 6 kHz or 4Pi off selectable Sensitivity 89 dB / 2.83 V / 1 m Nominal Impedance suitable for amplifiers (from ... to) 4 Ω 4 ... 8 Ω Minimum Impedance 3.8 Ω at 120 Hz Frequency Range acc. to IEC 268-5 25 ··· 53,000 Hz Nominal / Peak Power Handling 250 / 300 W Finishes: silver shadow, titan shadow, and black high gloss Production Period: 04/2005 - 03/2009