Short answer: both are discontinued, so this only matters if you are buying used, though neither ranks well in its class. Used, the Roku Subwoofer 9201X is the better pick: it ranks #67 of 73 subwoofers by sound quality (rated 2.7/5), against #71 (rated 2.6/5) for the PSB Speakers SubSeries 100. Both are rated below 3.0/5 among the 73 subwoofers, so if sound quality matters, consider the Edifier T5s instead, ranked #2 at $169.99.
What the PSB Speakers SubSeries 100 does well: A tiny, light sealed subwoofer that tucks almost anywhere to add some bass to a small desk or bedroom system. The catch: Deep-bass output is limited relative to its midbass result, so it is not the right choice for the lowest movie effects.
What the Roku Subwoofer 9201X does well: A wireless add-on subwoofer for Roku TVs and Roku audio that sets up easily and adds low end to TV and casual movies. The catch: It is locked to compatible Roku products and cannot serve as a conventional subwoofer.
Buy the Roku Subwoofer 9201X only if you find one used in good condition; both are discontinued, and it is the better rated of the two. For a new speaker, start with the Edifier T5s instead.
Looking for alternatives? See the complete Subwoofers rankings.
A tiny, light sealed subwoofer that tucks almost anywhere to add some bass to a small desk or bedroom system.
A wireless add-on subwoofer for Roku TVs and Roku audio that sets up easily and adds low end to TV and casual movies.
Prices on this page were last checked October 23, 2026 at 8:27 AM 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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Specifications Side By Side
| PSB Speakers SubSeries 100 | Roku Subwoofer 9201X | |
|---|---|---|
| Price | $299 Discontinued | $399 Discontinued |
| Ranked | #71 of 73 in Small Home Subwoofers (Under 30 lbs) | #67 of 73 in Small Home Subwoofers (Under 30 lbs) |
| Enclosure | sealed | sealed |
| Output SPL at 20 Hz | 78.1 dB | 83.9 dB |
| Output SPL at 25 Hz | 81.4 dB | 85.3 dB |
| Output SPL at 31.5 Hz | 87.6 dB | 91.1 dB |
| Output SPL at 40 Hz | 94.1 dB | 98.0 dB |
| Output SPL at 50 Hz | 99.3 dB | 101.6 dB |
| Output SPL at 63 Hz | 104.3 dB | 101.1 dB |
| CEA-2010-A Average (40-80Hz) | 99.2 dB (avg of 3/4 bands) | 100.0 dB |
| Dimensions | 6.4”H x 6.4”W x 7.9”D (161.8 x 161.8 x 199.9 mm) | 11.8”H x 11.8”W x 11.8”D (299.7 x 299.7 x 299.7 mm) |
| Weight | 6 lbs (2.7 kg) | 17.2 lbs (7.8 kg) |
| Warranty | 5 | - |
| Country | Canada | United States |
| Measurement Source | Brent Butterworth | Brent Butterworth |
| Drivers | 5.25” (133mm) driver | 10” (254mm) driver |
| Output SPL at 80 Hz | - | 99.2 dB |
| Cabinet Color | - | black |
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