Polk Audio Reserve R400 – Centre Channel Speaker (Unit)

The Polk Audio Reserve R400 is a high-performance centre channel speaker designed for clear dialogue, detailed vocals and precise home cinema reproduction. It combines Polk's 1-inch Pinnacle Ring Radiator tweeter with dual 6.5-inch Turbine Cone drivers and dual X-Port technology, providing a wide soundstage, natural midrange and controlled bass that integrates seamlessly with Reserve Series speakers.

Key Features

• 1" Pinnacle Ring Radiator Tweeter: Delivers clear, detailed high-frequency reproduction with wide dispersion for consistent sound across the listening area.
• Dual 6.5" Turbine Cone Drivers: Polk's Turbine Cone design increases rigidity while maintaining low mass for natural vocals, detailed midrange and controlled bass.
• Dual X-Port Technology: Polk's Eigentone Filter system helps reduce unwanted port and cabinet resonances for cleaner low-frequency reproduction.
• Dedicated Centre Channel Design: Optimised for dialogue, vocals and centrally positioned movie effects in a multichannel system.
• Hi-Res Audio Certified: Extended high-frequency performance supports detailed reproduction of high-resolution audio content.
• Premium Cabinet Construction: Carefully braced enclosure helps minimise unwanted resonances and cabinet colouration.
• Timbre-Matched: Designed to integrate with Polk Reserve Series speakers for a consistent front soundstage.
• IMAX Enhanced Certified: Suitable for high-performance IMAX Enhanced home cinema systems.
• Magnetic Grille: Removable grille provides a clean appearance with minimal acoustic interference.

Technical Specifications

System Integration

The Reserve R400 is designed primarily as the centre channel in a Polk Reserve home cinema system. Its dual 6.5-inch Turbine Cone drivers provide strong vocal and midrange presence, while the Pinnacle Ring Radiator tweeter delivers detailed high-frequency reproduction. It can be paired with Reserve floorstanding or bookshelf speakers to create a cohesive and timbre-matched front soundstage.