QSC AC-C4T AcousticCoverage 4.5-Inch Ceiling SpeakerPriced individually, sold in quantities of 2 The QSC AC C4T ceiling speaker is part of the AcousticCoverage Series. The 4 full range ceiling mounted loudspeaker has a 70 100V transformer and is well suited for audio video conferencing reinforcement, voice paging, and background music applications. Crystal clear sound throughout the critical vocal range increases spoken word intelligibility. This clarity is possible in part from a high quality 4