Acoustic Monitor dbIV Liquid Cooled Speakers - Frequency Response: 43Hz-25KHz. Efficiency: 98db 1w/1m. Max Power: 125watts Program. Impedence: 8ohms. Drivers:1inch (25.4mm) Tweeter, 4inches (100mm) Midrange, 12inches (300mxm) Woofer. Each cabinet is 28x15x12" and weighs 32 LBS. shipped in 2 boxes. All information and photos are intended to be as accurate as possible, but errors are possible. No item may be returned or refused based on this information, which is provided as a service to bidders. Please read terms & conditions and ask questions before bidding.