Dayton Audio Epique E180HE-PR Passive Radiator

The Dayton Audio Epique E180HE-PR Passive Radiator is a premium solution for achieving deep, controlled bass in compact loudspeaker designs. As part of the acclaimed Epique series, this passive radiator is engineered to complement active drivers in sealed enclosures, delivering authoritative low-frequency extension without the need for a port. Its high-excursion design makes it ideal for high-fidelity home audio systems, custom car audio installations, and professional monitor applications where space is at a premium but bass performance cannot be compromised.

Technically, the E180HE-PR boasts a remarkable 19mm linear excursion (Xmax), allowing it to move substantial air for powerful, articulate bass. With a resonance frequency of just 22Hz, it enables deep subwoofer-like extension from a relatively small cabinet. The effective cone area (Sd) of 136.1 cm² and displacement volume (Vd) of 258.59 cm³ ensure efficient coupling with the enclosure’s internal air volume. A mechanical Q (Qms) of 4.48 indicates well-damped behaviour, contributing to clean, distortion-free output. The 177.8mm nominal diameter fits standard cutouts, making integration straightforward.

This passive radiator is the perfect choice for audiophiles and DIY enthusiasts seeking to maximise bass output from a sealed system while maintaining excellent transient response and musicality. Its robust construction and advanced engineering from Dayton Audio guarantee long-term reliability and outstanding sonic performance.