Unique MDT™ (Metal Diaphragm Technology): • High rigidity and low mass of metal versus traditional papers and plastics • Extremely stable cone structure over long periods of time • Fast transmission of sound through the diaphragm means low energy storage • Special anodizing process creates a ceramic coating for increased stiffness • Efficient heat-sinking of voice coils under long-term, high-power situations Patented MLS™ (Magnetic Liquid Suspension): • Voice coil is constantly centered for lower distortion • Voice coil is more efficiently heat-sinked by fluid instead of air • Greater linearity is accomplished because the mechanical spider is eliminated • Constant lubrication of the gap prevents oxidation from outdoor use Technical Specifications: Frequency Response (-10 dB): 55 Hz to 20 kHz LF Driver: 6" MDT Metal-Alloy Cone HF Driver: 1/2" Polycarbonate Sensitivity (1M/1W, 8-ohm): 88 dBspl Impedance: A2 8-ohm, A2T 70V Power Handling: A2 100W, A2T 16W Additional Taps (A2T's Only): 8W, 4W Product Weight: A2 8 lb., A2T 10 lb. Cabinet Material: Mineral-Filled Polypropylene, UV-inhibited Speaker Dimensions: 9" dia. x 8" D Terminations: Gold-Plated, Rust-Proof Barrier Strip Environmental: Meets or exceeds Mil-Std-810E Included Accessories: Color-Matched Aluminum Mounting Bracket Cabinet Color: Black, Green, White