Quick view Pioneer DJ DM-40 - 21W 4" Two-Way Active Monitor - Black (Pair) $149.00 Pioneer DJ DM-40 - 21W 4" Two-Way Active Monitor - Black (Pair) Versatile sound. 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,... Compare Add to Cart