The DSP504 is a surface mounted 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(300-14,000Hz), 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;No roof cutout direct mounting on ceiling by 4 screws ;waterproof, long life, with clear and sonorous sound.
This surface mount ceiling speaker is an ideal choice for industrial and commercial applications in hotel, school, office and factory where background music and paging is needed.

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DSPPA | Enchanting FISU World University Games with InnovationAugust 3, 2023Abstract: DSPPA shines bright at Chengdu Universiade, providing stable audiovisual technology and professional support.view
DSPPA | Holiday Notice of Dragon Boat FestivalJune 2, 2022Abstract: The Dragon Boat Festival falls on Friday this year, which is the fifth day of the fifth lunar month. Please be informed that we will take three ...view