4 Inch Coaxial Ceiling Loudspeaker(2.5W-5W-10W-20W)

4 Inch Coaxial Ceiling Loudspeaker(2.5W-5W-10W-20W)



The NV-PASP-CGSP-P248 is a ceiling speaker built-in 70v/100v transformer. The 70v/100v transformer technique reduces line losses on longer distances and allows easy parallel connection of multiple loudspeakers.

The built-in 4”+1.5” coaxial speaker driver is designed for wide frequency response 110-16kHz, and its various power output from 2.5W, 5W, 10W to 20W could meet different room sizes applications. The power taps are convenient to switch the input from 100V to 70V or 8Ω, thus this speaker supports both high impedance input and low impedance input use. The metal grille, ABS baffle, and ABS back cover are painted in attractive white color. Its flush mount type makes the easy and secure installation.

It is an ideal choice for industrial and commercial applications in hotel, school, office, and factory where background music and paging is needed.


  • Built-in 100v/70v transformer
  • In-ceiling type loudspeaker
  • 4” +1.5” coaxial speaker unit
  • Power output 2.5W, 5W, 10W & 20W @100V
  • Line input: 100V, 70V or 8Ω
  • Metal grille, ABS baffle & ABS back cover
  • Paint in white color
  • Secure flush-mount installation



Power Taps @100V 2.5W, 5W, 10W, 20W
Power Taps @70V 1.25W, 2.5W, 5W, 10W, 20W
Transformer Impedance Black: Com  Red: 4KΩ/2KΩ/1KΩ/500Ω/240Ω
Input 70V/100V/8Ω
SPL(1W/1M) 88dB
Max. SPL (Rated W/1M) 101dB
Frequency Response (-10dB) 110-16KHz
Finish Baffle: ABS, White   Grille: Steel, White
Speaker Driver 4″x 1  1.5″x 1
Cutout Size 180mm
Dimensions 213 x 135mm
Weight 1.9Kg
Mounting Flush-mount dog ears