Designed by Harbeth to be a musical sounding but accurate studio monitor. Each speaker has a 1-inch Morel DMS20 dome tweeter and 8-inch custom woofer. The woofer is powered with a 140W built in amp , while the tweeter receives 70W. Each weighs 28 pound and has both RCA or XLR jacks and a gain control . 16.5x10x12" ( 420 x 255 x 300mm,) Very good condition .fully inspected two years ago. An excellent choice for studio or home use - they will fill most rooms. Robust , no nonsense construction with analog amplifier modules and serviceable parts - Harbeth still stocks drivers. Service manual included. Downsizing so sorry no interest in trades. Includes 10 foot power cords . 20 foot Canare RCA interconnects an additional $50. In Saanich. Pick up only