Polk Audio RT15 2-Way Bookshelf Speakers — Versatile & Compact

Polk Audio RT15 2-Way Bookshelf Speakers — Versatile & Compact

A capable compact bookshelf from Polk Audio, the RT15 delivers clean, well-balanced sound at a size and price that makes it equally at home in a dedicated stereo setup or as part of a home theater system.

The RT15 is a 2-way design built around Polk’s Dynamic Balance driver technology — a laser-imaging process used to select driver materials that minimize resonance for a smooth frequency response and low distortion. The 5.25″ composite woofer handles midrange and bass with authority for its size, while the 0.75″ silk dome tweeter keeps the high end smooth and fatigue-free over long listening sessions.

Polk’s Power Port bass venting on the rear panel shapes the outgoing airflow with a flared, funnel-like geometry that reduces port turbulence and delivers cleaner, more extended bass than a conventional straight-tube port. Complementing this, the RT15 also features Polk’s Acoustic Resonance Control (ARC) system — two small tuned ports flanking the tweeter on the front baffle — which suppress internal cabinet resonance for a more natural, open midrange. The two technologies work in tandem: Power Port handles low-end extension, ARC keeps voices and instruments clear and uncoloured.

Video shielding allows placement near a display without interference, and a keyhole slot on the rear Power Port plate enables wall mounting without additional hardware — useful for surround channel duty. The gold-plated 5-way binding posts accept bare wire, pin connectors, spade lugs, and single or dual banana plugs.

Type: 2-way, bass-reflex bookshelf speaker

Woofer: 5.25″ Dynamic Balance composite cone with rubber surround

Tweeter: 0.75″ Dynamic Balance silk dome

Frequency response: 60 Hz–24 kHz (65 Hz–20 kHz, -3 dB)

Sensitivity: 89 dB

Impedance: 8 ohms

Power handling: 20–100 watts

Bass venting: Rear Power Port + dual front ARC (Acoustic Resonance Control) ports

Finish: Black vinyl

Video shielded: Yes

Wall-mountable: Yes (keyhole slot on rear Power Port plate)

Binding posts: 5-way, gold-plated

Dimensions: (Width x Height x Depth) 6.5 x 10.7 x 7.3 inches (165 x 272 x 185 mm)
Weight: 9.5 lbs (4.3 kg) each

A clean, good-condition pair of Polk RT15 bookshelf speakers featuring both Power Port and ARC technologies — more refinement than you’d expect at this price point, and ready for immediate use.

Backed by Radique Audio’s 90-day warranty and our perpetual trade-back policy, you can purchase with confidence.