System 2 way vented box loudspeaker Cabinet Lute shape design, constrained-mode damping, enclosure formed using 21 pieces of hand selected solid maple wood Tweeter 25mm ultra dynamic linearity ring radiator driver, with dual toroidal wave-guide Mid-Woofers 150mm, ultra dynamic linearity driver. CCAW/Kapton "eddy current free" voice coil. Dynamically linear magnetic field motor incorporating Kellog and Farady rings. All moving elements optimally ventilated for "resonance free" response. Cross-over Designed along the philosophy of the least interference with the musical path. The conceptually minimalist implementation uses 6 db/octave slopes and components of the highest quality and coherence. A unique structured Silver-Palladium alloy conductors used, totally coherent on the entire signal path. Crossing points 2500Hz Frequency response 39Hz - 30000Hz, tuning pors included Sensitivity 88 db SPL (2.83V/1m) Nominal impedance 4 ohms Power handling 30W-200W, without clipping Finish Red vioin piano gloss Dimension 1230x300x480mm (HxWxD) with stand Weight 85 Kg per pair - net weight / 110 Kg per pair - shipping weight