The AD-Systems STiUM is an very compact, hornloaded fullrange loudspeaker system incorporating two 12" neodymium low-mid speakers and a high resolution 1.4" high frequency compression driver. Thanks to its acoustic design it is capable to generate sound pressure levels in excess of 140dB with low distortion. Compared to traditional designs this unit reaches a very low cutoff frequency of 100Hz and so can be used together with any common subwoofer system. Its nominal coverage pattern is 75° x 50° but the high frequency horn is rotatable by 90° to get a 50° x 75° pattern. The loudspeaker incorporates a passive crossover and has a net weight of close to 42 kilogrammes - features which make the STiUM a highly economic and flexible product.

Corresponding with a high performance system of its class the AD-Systems STiUM is layed out as semi-active system, i.e. a complex, passive 2.5-way crossover provides phase coherent combination of both ways as well as a specifcally optimized coverage pattern, while equalizing and speaker protection is priovided by the Impuls system amplifiers. That‘s why the powering of the STiUM requires only one amplifier channel.

The handling of the slender, polyurea coated enclosure is pleasantly easy due to the well placed handles on both sides. The available accessories round the systems concept perfectly off: The Quick-Rig flying bar is mounted within seconds and enables easy set up due to the optimally matched pivot point. The detachable front board as well as the padded transport cover protect from dirt and rough handling effectively.

The STiUM is the preferred choice for applications, where maximum profitability meets high sound pressure requirements. Its decent shape and ease of use, its low crossover-capapbility and its remarkable output-to-weight ratio lead to a uniquely versatile system.