The THX®-Certified KPT-942/4-B two-way screen and stage loudspeaker system is based on our new KPT-415-LF quad 15-inch bass unit providing enhanced bass output while retaining the 24-inch depth of our smaller systems. Higher frequencies are handled by a KPT-402-HF Tractrix® Horn with a K-1132 two-inch exit titanium compression driver. The KPT-942/4-B's high efficiency very high output and excellent coverage characteristics make it an outstanding cost-effective solution for medium and large auditoriums.