Attenuator-ka waxaa loo isticmaalaa in lagu kordhiyo kala duwanaanshaha firfircoon ee aaladaha sida mitirrada korontada iyo amplifiers-ka. Waxay gudbin kartaa calaamadda gelinta iyadoo aan lahayn qallooc yar iyadoo nuugaysa qayb ka mid ah calaamadda gelinta lafteeda. Waxa kale oo loo isticmaali karaa hab lagu simo heerka calaamadda ee khadka gudbinta. Alaabada Qualwave Noocyo kala duwan oo attenuators ah ayaa la heli karaa, oo ay ku jiraan attenuators go'an, attenuators-ka gacanta, attenuators-ka CNC, iwm.