The Polk Signature Elite ES15 ranks #42 out of 92 total Medium Size Bookshelf Speakers for sound quality. See all Passive Home rankings for every top pick.
Brand: Polk
Prices on this page were last checked October 3, 2026 at 10:26 PM UTC. Product prices and availability are accurate as of that date/time and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.
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#42 Polk Signature Elite ES15: $299.00 per pair Passive Amazon eBay
Pros: A compact 5.25-inch passive bookshelf speaker designed for hi-res stereo music and home theater surrounds. Features a 1-inch Terylene dome tweeter capable of extending up to 40kHz alongside a 5.25-inch mica-reinforced polypropylene woofer and Polk’s patented Power Port bass-reflex technology. Erin’s Audio Corner Klippel NFS testing demonstrates excellent directivity control and smooth listening-window response with very low distortion. Power Port reduces turbulent air noise and provides clean low-frequency reinforcement down to approximately 58Hz. Measured bass extension of 58Hz (-3dB).
Cons: The 5.25-inch woofer has lower sensitivity (88dB) and less low-bass extension than its larger sibling, the 6.5-inch ES20. A dedicated subwoofer is recommended for home theater action dynamics and full-range orchestral playback.
How it compares: Just above it: ELAC BS41 - $119 cheaper, 3.5Hz lower bass extension (-3dB). Just below it: Klipsch RP-500M - 5Hz higher bass extension (-3dB).
| Bass Extension (-10dB) | 44Hz (measured, Erin’s Audio Corner) |
|---|---|
| Bass Extension (-3dB) | 58Hz (measured, Erin’s Audio Corner) |
| Crossover Frequency | 2.5kHz |
| Dimensions | 12” x 7.5” x 10.2” (305 x 191 x 259 mm) |
| Drivers | 1” Terylene high-res dome tweeter, 5.25” mica-reinforced polypropylene woofer |
| Frequency Response | 48Hz - 40kHz (Manufacturer specified) |
| Impedance | 8 ohms (4-8 ohm compatible) |
| Passive | Yes |
| Sensitivity | 88dB (2.83V @ 1m) |
| Weight | 13 lbs (5.9 kg) each |
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