The DALI Oberon On-Wall is the slim, discreet. and surprisingly powerful on-wall speaker of the series. Housing the oversized 29mm ultra-lightweiht soft dome tweeter, a 5 1/4" wood fibre SMC based woofer and the unique down-firing bass port system. The combination of technologies used made it possible to create a speaker that despite its compact size, will render audio like a much larger model. For this reason, its a perfect discreet choice for both stereo and surround setups.