5.25", 2 way, 80 Hz to 15 kHz, 150W continuous, 70V/100V transformer (30W, 15W, 7.5W, 3.7W taps at 70V, 30W, 15W, 7.5W taps at 100V), 3 kHz crossover frequency, High-Impact Polystyrene (HIPS) enclosure, spring-loaded input terminals, 9.5" H x 7.5" W x 6" D. 8 lb., black.