The Polk Audio Signature S30 ranks #42 out of 71 total Center Channel Speakers for sound quality. See all Passive Home rankings for every top pick.
Brand: Polk
Prices on this page were last checked October 5, 2026 at 10:21 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.
As an eBay Partner, we may be compensated if you make a purchase.
#42 Polk Audio Signature S30: $229 each Discontinued eBay
Newer model: the Polk Audio Signature Elite ES30, ranked lower, estimated 3.5/5.
Pros: A two-way center with a 1” Terylene dome tweeter between two 5.25” woofers and 89dB sensitivity. Audio Science Review measured bass to 71.8Hz (-3dB) and about 54Hz (-10dB) and fairly wide horizontal coverage (about ±55 degrees). Measured bass extension of 71.8Hz (-3dB).
Cons: The listening window spans 4.2dB from 300Hz to 5kHz and directivity is uneven (3.82dB directivity index deviation), for a preference score of 3.61 without a subwoofer. Polk replaced it with the Signature Elite ES30. Discontinued.
How it compares: Just above it: Wharfedale Diamond 12.Ci - $170 more, 1Hz higher bass extension (-3dB). Just below it: Polk Audio Signature Elite ES30 - $70 more.
| Bass Extension (-10dB) | about 54.2Hz (measured, Audio Science Review) |
|---|---|
| Bass Extension (-3dB) | 71.8Hz (measured, Audio Science Review) |
| DIY Kit | No |
| Dimensions | 7.5”H x 20”W x 10.6”D (191 x 508 x 269 mm) |
| Drivers | 1” Terylene dome tweeter, 2x 5.25” woofers |
| Impedance | 8 ohms nominal (manufacturer specified) |
| Sensitivity | 89dB (manufacturer specified) |
| Spinorama Preference Score | 3.61 |
| Spinorama Preference Score with Perfect Sub | 6.23 |
| Weight | 19 lbs (8.6 kg) |
- Links
- Reviews, Comparisons and Sound Samples