Guangzhou DSPPA Audio Co., Ltd.
Tel: 020-28346138
Fax: 020-81305947

DSP503 4.5 Inch 1.5W-10W Steel Ceiling Speaker


● Built-in 100v/70v transformer
● Ceiling type loudspeaker
● 4.5” paper cone driver unit
● Rated power output at 1.5W-6W
● High sensitivity(91±2dB)
● Made of high-class steel
● Fast installation by spring clip

  • Introduction
  • Specification

The DSP503 is a ceiling speaker with a 70v/100v transformer built in. The 70v/100v transmission is realized in a high-voltage, low-current mode, which makes longer distance transmission and parallel connection of multiple loudspeakers possible.

The built-in 4.5'' speaker driver is designed of wide frequency response (60-20,000Hz), the multiple terminals 1.5W, 3W & 6W can be applied to different occasions vary in area sizes and background noises; It is made of high quality engineering plastic, with long-term durability, and will never be out of shape or fading; Spring clip clamp ensures the easy and secure installation; waterproof, long life, with clear and sonorous sound.

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




4.5” X 1

Rated Power


Max Power


Line Input




Max SPL(1M)


Freq. Response


Cutout Size

Ø154 - Ø162mm

Dimensions (H x W x L)

80 x Ø175mm



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