Dayton Audio DMA45-PR 1-1/2" Aluminum Cone Passive Radiator

The Dayton Audio DMA45-PR 1-1/2" Aluminium Cone Passive Radiator is a precision-engineered component designed to elevate the low-frequency performance of compact audio systems. As a passive emitter, it works in tandem with an active driver to reinforce bass output, making it an ideal solution for small sealed enclosures where a conventional port would be impractical. This passive radiator is particularly well-suited for use in desktop speakers, portable Bluetooth systems, and custom DIY audio projects where space is at a premium but deep, articulate bass is still desired.

Constructed with a lightweight yet rigid aluminium cone and a durable rubber surround, the DMA45-PR ensures reliable and consistent performance over extended periods. Its polymer basket provides a sturdy foundation while minimising unwanted resonances. Key technical specifications include a resonance frequency (Fs) of 60 Hz, a maximum linear excursion (Xmax) of 5 mm, and an equivalent volume (Vas) that allows for flexible enclosure design. The mechanical Q (Qms) of 2.75 and mechanical resistance (Rms) of 0.38 contribute to controlled, accurate bass reproduction. With a nominal diameter of 63.5 mm and a cut-out diameter of 39.6 mm, this passive radiator integrates seamlessly into a variety of builds.

Whether you are upgrading an existing design or starting a new project, the Dayton Audio DMA45-PR delivers enhanced low-end extension with minimal distortion, making it a reliable choice for audiophiles and hobbyists alike.