Designed as a midrange alternative to satellite speakers and floorstanding speakers, bookshelf speakers offer a good compromise between size and power. Bookshelf speakers usually come as a twin set of two large units, which can take up a decent amount of space. The Edifier D12 (pictured) solves this problem by self containing two bookshelf speakers into one single unit. Being a single unit, the Edifier D12 takes up less space than the R1010BT bookshelf speakers . Not only is the Edifier D12 smaller and more compact, it is also more powerful than the 24W RMS R1010BT bookshelf speakers. The D12 speaker unit is capable of up to 70 Watts RMS of continuous power, which is distributed between two 19mm silk dome tweeters (for the treble) and 4-inch mid bass driver (for bass and vocals). Each tweeter is capable of 15 Watts RMS, while each mid bass driver can handle up to 20 Watts RMS. The Edifier D12 drivers are housed inside a wooden enclosure, which has a leather like finish on top and ...