AtlasIED AP-15TC 15W Horn SpeakerThe 8 ohm Model AP 15 is a double re entrant speaker which delivers 15 watts of continuous power handling, superior intelligibility and unparalleled efficiency. The AP 15 Series operates within a nominal frequency response range of 400 14,000 Hz and offers a sensitivity of 120dB at rated power to provide clear voice and signal communication. The trademarked squared bell design signifies AtlasIED quality and reliability. The Omni Purpose mounting