New in box. Purchased for project but never got around to installing them. These are a awesome set of component speakers! No disappointment's. These are 6.5-inch component system with a pair each of woofers, tweeters, crossovers. Woofers feature polymer/mica composite cone with butyl rubber surround and Kapton voice coil former. Speakers have 25mm liquid-cooled silk/polymer composite dome tweeters with neodymium magnet for clear, detailed highs. Two-way Butter worth outboard crossover with vented housing, electronic tweeter protection circuit. Adapter Rings make it easy to fit the db6501 in 6-1/2 inch and 6-3/4 inch application System Specs Overall Frequency Response: 35Hz-23kHz Nominal Impedance: 4 Ohms Power Handling (continuous): 100 Watts Power Handling (peak): 300 Watts Efficiency: 92 dB