Two speaker enclosures with two 10 inch car subwoofers in each & one 6x9 4 way car speaker in each cabinet. Each enclosure has two separate wires coming out the back, one for subs, plus/negative, one for 6x9's, plus/negative. The subwoofers have heavy magnets along with the 6x9 speakers. The speaker enclosure originally held one 15 inch speaker. I used the backs of similar cabinets to mount the two 10 inch subwoofers. The heavy cabinet board is glued & screwed onto the front of each enclosure with zero air leaks. I had 1000 watts powering the combo & easily could handle more power. The subwoofers are 4 ohm each, wired in parallel so the amp will see 2 ohms doubling the wattage of the amp. While these enclosures aren't perfect looking, they sound awesome which is what counts. The enclosures are poly fill lined. I had the 6x9 speakers high passed (high frequencies only) & the subwoofers low passed (low frequencies only) for crystal clear highs & house shaking lows. Each port hole has a screen to keep the bugs out. Each enclosure measures 34" high, 17-1/4" wide, 12" deep, weight of each enclosure is 50 lbs. You need a plate amp or rack amp with at least 500 watts for these speakers.