Acoustic Audio by Goldwood In-Ceiling 6.5 in. Speaker Pair 2 Way Home Theater Speakers HTI-6C - The Home Depot
1x Snell OH-S7 In Ceiling Speaker (White) k449 | eBay
Zuma Offers Integrated Smart Home Ceiling Speaker and Light | audioXpress
Whole home multi-room ceiling speakers - Lithe Audio LTD
High Quality 2 Way Speaker 50W 6.5inch 16ohm Premium Ceiling Speakers with Kevlar Driver and 2 Tweeters for Smart Home Audio Public Address System - China Sound Equipment and Loudspeaker price
QSC AC-C4T 4" commercial in-ceiling speakers at Crutchfield