Integrated with a resin panel and speaker frame, the PC-648R is the ceiling mount speaker with a metal attached. It features spring clamp mechanism for easy speaker mounting to the ceiling. The input impedance can be easily changed by changing the tap position of the transformer.

Specifications

Rated Input : 6 W ( 100 V line) , 3 W ( 70 V line)

Rated Impedance :
100 V line: 1.7 k© ( 6 W) , 3.3 k© ( 3 W) , 10 k© ( 1 W)

70 V line: 1.7 k© ( 3 W) , 3.3 k© ( 1.5 W) , 10 k© ( 0.5 W)

Sensitivity : 90 dB ( 1 W, 1 m) ( 500 - 5, 000 Hz, pink noise)

Frequency Response : 100 - 18, 000 Hz ( peak -20 dB)

Speaker Component : 12 cm ( 5" )

cone-type
Dimensions for Fixing Hole :
Mounting hole: Æ 145± 5 mm ( Æ 5.71" ± 0.2" )

Ceiling thickness: 5 - 25 mm ( 0.2" - 0.98" )
Speaker Mounting Method : Spring clamp

Finish Baffle : Polypropylene resin, off-white ( RAL 9010 or equivalent color)

Grille : Surface-treated steel plate net, off-white ( RAL 9010 or equivalent color) , paint

Dimensions : Æ 168 × 77 ( D) mm ( Æ 6.61" × 3.03" )
Weight : 470 g ( 1.04 lb)