The Polk Audio PSW108 ranks #25 out of 50 total Small Home Subwoofers (Under 30 lbs) for sound quality. See all Subwoofers 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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#25 Polk Audio PSW108: $179.00 each Amazon eBay
Pros: The cosmetic and retail refresh of Polk’s legendary PSW10 budget subwoofer. Pairs a 10-inch dynamic balance polymer composite woofer with a 50W RMS / 100W peak Class A/B amplifier and front-firing tuned port. Clean, compact black vinyl cabinet fits easily into tight living spaces or corners, providing noticeable bass fullness down to 35Hz for budget music and home theater systems. Includes both RCA line-level inputs and speaker-level binding posts for easy integration with vintage receivers lacking a dedicated sub out.
Cons: The 50W internal amplifier is modest by modern subwoofer standards and will compress or produce audible port turbulence when pushed hard on heavy movie low-frequency effects. Bass extension drops off rapidly below 35Hz.
How it compares: Just above it: Focal Sub Air - $1220 more, 1.3dB less max output. Just below it: SVS 3000 In-Wall - $1821 more, 1.8dB less max output.
| Amplifier Power | 50W RMS, 100W peak |
|---|---|
| Bass Extension (-3dB) | 35Hz (Manufacturer specified) |
| CEA-2010-A Average (40-80Hz) | 110.3 dB |
| Crossover Frequency | 80Hz - 160Hz variable |
| Dimensions | 14.4” x 14” x 16.1” (365 x 356 x 409 mm) |
| Drivers | 10” dynamic balance polymer composite woofer |
| Enclosure | Ported, front-firing port |
| Frequency Response | 35Hz - 200Hz (-3dB, Manufacturer specified) |
| Inputs | RCA line in, speaker-level spring terminals |
| Measurement Source | ErinsAudioCorner |
| Output SPL at 31.5 Hz | 96.1 dB |
| Output SPL at 40 Hz | 104.7 dB |
| Output SPL at 50 Hz | 109.7 dB |
| Output SPL at 63 Hz | 113.8 dB |
| Output SPL at 80 Hz | 113.1 dB |
| Output SPL at 100 Hz | 112.2 dB |
| Output SPL at 125 Hz | 110.7 dB |
| Phase Control | 0° / 180° switch |
| RCA Input | Yes |
| Weight | 26 lbs (11.8 kg) |
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