For your consideration, this pair of Tannoy Ceiling Monitor Speakers, Model CMS50TICT * New old stock / open box. Never been used. * Excellent for any ceiling application where you need built-in reliable sound reinforcement.* Unique dual driver design in optimized enclosure with excellent fidelity. DETAILS from the manual (available online from several sources): The Tannoy CMS50 ICT Ceiling Monitor System is suited for high-level music and speech reinforcement applications requiring exceptional sonic quality with uncompromised reliability. Achieving fast, simple and cost effective installation in new and existing buildings, this versatile design has addressed the two most common failures of background music and sound reinforcement systems, which are firstly the tweeter, and secondly the crossover. With the revolutionary design of the ICT™ drive unit, neither of the above criteria applies, assuring you years of trouble free use. ICT™ or Inductive Coupling Technology utilises a wireless electromagnetic tweeter that does not require a crossover and cannot be burned out from heavy or abusive use. The 1” aluminium high frequency dome has a deep drawn skirt that sits on the inside of the low frequency voice coil in the same magnetic gap. The skirt is like a single shorted turn, which is induced with high frequency information generated by the low frequency voice coil, which is fed a full bandwidth signal. The ICT™ dome is at the heart of our 5” ceiling transducer which utilises a moulded plastic cone and nitryl rubber surround to further enhance it’s durability and long term reliability. The ICT driver is housed in a rugged aluminium ceiling enclosure that has been optimally tuned to achieve maximum bass response and tonal balance. The CMS50T ICT houses a Tannoy THP 30 multi-tap transformer for distributed-line operation. The transformer provides high system sensitivity, a wide bandwidth and dynamic range, with very low insertion loss. For critical Applications provision has been made for the CMS50T ICT to accept the THP 60, a 60W multi-tap transformer. Handling time 1 day from cleared payment. Payment due within 2 business days of auction close. Professionally packed and securely shipped. Shipping weight approx. 20-22 lbs. Local pickup available in the greater Seattle / Eastside area. eBay payments only. Thanks for taking the time and keep on eBayin!