Type 2-way bass reflex, active monitor speakers Tweeter 3/4” (19 mm) soft dome Woofer 4-inch Fiberglass What′s in the box DM-40D Power cord Audio converter cable (3.5 mm stereo mini plug to RCA) Speaker cord Bottom cushion Quick Start Guide Precautions for Use Warranty Specifications Dimensions (W x H x D) Lch: 146 x 227 x 223 mm / 5.75” x 8.94” x 8.78” Rch: 146 x 227 x 212 mm / 5.75” x 8.94” x 8.35” Weight Lch: 2.5 kg / 5.5 lbs. Rch: 2.2 kg / 4.9 lbs. Amplifier Output Lch: 19 W / 4 Ω Rch: 19 W / 4 Ω Impedance 10 kΩ Enclosure Bass reflex Enclosure material MDF vinyl laminate Power Consumption 25 W Power consumption during standby mode 0.3 W or less Terminals Inputs RCA pin jack x 1 (unbalanced input) 3.5 mm stereo mini jack x 1 (unbalanced input) Outputs 3.5 mm stereo mini jack x 1.