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.

DSP9140 6.5-inch 35W Square Motorized In-Ceiling SpeakersAugust 30, 2022DSP9140 square motorized in-ceiling speakers is a 35W motorized speaker with the features of automatic flip and adjustable angle. Equipped with coaxial unit and 28 turbo worm DC gear motor with overlo...view
DSP915 5W-20W ABS Ceiling SpeakerNovember 14, 2016Description:The DSP915 is a ceiling speaker, also known as a 2 way ceiling speaker, it can be switched between the voltage terminal and the ohms terminal. The 70v/100v transmission is realized in a hi...view
DSP159 ABS 6.5 Inch Ceiling Speaker With TransformerNovember 15, 2016The DSP159 is a Hifi ceiling speaker, also known as a coaxial ceiling speaker, which can be switched between the voltage terminal and the ohms terminal.viewwe will contact you within 24 hours.
The Selection of Surface Mount Ceiling SpeakerJune 22, 2018Site formulation is advocated. It is generally difficult to achieve the best result of the selection of surface mount ceiling speaker and the arrangement of the loudspeakers based on the drawings with...view
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