Take the next step up from the MS20 and get more even output power and extended bass response! These extremely compact, 2 x 20-Watt nearfield monitors feature ultra-high resolution 24-bit/192 kHz D/A converters. With the MS40, you can connect directly to your digital signal sources and eliminate annoying analog line-loss and hum forever. Whether you connect to your computer sound card, keyboard, or MP3 player, you will enjoy exceptional sound quality with great dynamics. The built-in amplifiers provide lots of headroom, while the powerful woofers and tweeters provide ultra-linear frequency response.