ArchiTech AP-615 LCRS 6.5" 2-Way Round Angled In-Ceiling LCR Loudspeaker50W 100W per channel; 6. 5" poly woofers with butyl rubber surrounds & ferrofluid cooled dome tweeters; 2 way, round 15deg angled design; Antidiffraction, foam covered baffle surface ; Imp: 8ohm nominal; Freq resp: 45Hz 20kHz ; Sensitivity: 91dB @ 1W 1m; Overall dim: 10. 75" dia; Cutout dia: 9. 25"; Required depth: 5"; Each; Length: 12. 20" Width: 12. 10" Height: 7. 60" Note: Ship only in US;