When a speaker or sound source is placed in a corner so it is near three surfaces (like the junction of two walls and the floor) it is said to be in 1/8th space. This is similar in concept to half space (up against one wall) and quarter space (at a junction between two walls). When sound sources are placed near surfaces in this way more of the energy gets forward into the listening space (see WFTD Half Space for more info). Putting a source into 1/8th space yields and increase of approximately 3 dB more sound power level than quarter space, and 6 dB more than half space.