Pioneer Pro DJ Studio Monitor, Black (DM40) The compact DM-40 desktop monitors bring excellent audio quality to your home setup. They inherit the best from our professional S-DJX series and Pro Audio speakers, including a front-loaded bass reflex system for a rich, tight bass and DECO* technology for a wider reach and sweet spot. All these features are combined in a compact design making the DM-40 the perfect match for DJing, producing and simply enjoying music at home. The DM-40 speakers are sold as a pair. *Diffusion Effectual Convexity by Olson Specs: Type: 2-way bass reflex, active monitor speakers Tweeter: -inch Soft Dome Woofer: 4-inch Fiberglass What's in the box: DM-40 x 2, Power cord, 2 m speaker cable (for left/right channel connection), Audio converter cable (3.5 mm stereo mini plug to RCA), Bottom cushion x 8, Operating instructions Dimensions: Left ch: 146 x 227 x 223 mm (5.7 x 8.9 x 8.7 in.) Right ch: 146 x 227 x 210 mm (5.7 x 8.9 x 8.3 in.) Weight: Left ch: 2.7 kg (6 lbs.) Right ch: 2.2 kg (4.8 lbs.) Amplifier Output: Class A/B amp: 2 x 21 W / 4  Frequency Range: 70 - 30000 Hz Impedance: 10 k Inputs: 1 LINE (RCA), 1 LINE (Mini-jack) Outputs: 1 HEADPHONE MONITOR (Mini-jack)