Plated speaker terminals stainless steel hardware waterproof woofer design & a nylon composite mounting system, UV resistant white grills white powder coated speaker baskets polyurethane rubber woofer surrounds poly-mica aquamarine woofer cones & aluminum dome tweeters w/12db per octave crossovers, Impedence: 4 Ohms Power handling: 120 Watts max Frequency Resp, : 56-20 kHz Sensitivity: 88dB +/- 3dB; 1 watt @ 1 meter Monting depth: 2, 25"" Tweeter Size: , 75"" Tweeter: 25mm bridge mounted titanium tweeter w/neodymium magnet, Woofer: UV & Water Resistant poly-mica cone w/neo-rubber surround, Cossover: 12db per octave two stage bi-ampable Grill/Basket: White composite w/stainless mounting hardware SKU: TBAL1493