The LSC22 Series is the latest design in Loud Speaker/Siren Controllers, providing centralized control for airborne internal and external loud speaker systems. Crystal clear pre-amplified, recorded audio, boom mic audio and radio audio can be routed to the aircraft amplifier while providing control over source and volume. The new LSC22 is compatible with AEM's new LSA series loud speaker amplifiers as well as the legacy AEM/NAT PA equipment.