Dayton Audio DSA115-PR 4" Designer Series Aluminum Cone Passive Radiator

The DSA115-PR 4" Designer Series Aluminum Cone Passive Radiator from Dayton Audio offers a sophisticated solution for achieving deep, controlled bass in compact loudspeaker designs. By replacing a traditional port, this passive radiator allows for extended low-frequency response without the chuffing noises or space requirements of a ported enclosure, making it ideal for high-fidelity audio projects where cabinet size is constrained.

This passive radiator excels in sealed enclosures that need additional bass extension, such as bookshelf speakers, subwoofer systems, or custom automotive audio installations. Its design integrates seamlessly with active drivers to produce tight, articulate low-end performance, particularly in applications where a tuned port is impractical or undesirable.

Engineered with a rigid aluminium cone and a durable rubber surround, the DSA115-PR ensures precise cone control and long-term reliability. Key technical specifications include a resonance frequency of 30.9 Hz, an equivalent volume of 9.34 litres, and a maximum linear excursion of 6 mm, supported by a moving mass of 11.7 grams. The steel basket provides robust structural integrity, while the 93.7 mm cut-out diameter and four mounting holes simplify installation.

Combining Dayton Audio’s renowned engineering with premium materials, the DSA115-PR is a versatile choice for audiophiles and designers seeking to elevate bass performance in space-efficient speaker builds.