B-Stock, Eminence Deltalite II 2510, 10" neodymium woofer, 250W/8 Ohms (RMS), 500W/8ohm (peak), 60Hz-4kHz, 97.3dB sensitivity. Optimized for sound reinforcement systems. Also suitable for lead and bass guitar, keyboards, guitar combos, club music systems and stage monitors., B-Stock with full warranty, may have slight traces of use