Short answer: the Polk Audio Monitor XT12. Both are rated 3.3/5 for sound quality (#187 and #183 of 212 subwoofers), and the Polk Audio Monitor XT12 costs $319 against $339.34 for the RSL (Rogersound Labs) Speedwoofer 10E, and with sound quality even, the cheaper one is the better buy.
What the Polk Audio Monitor XT12 does well: The 12” subwoofer of Polk’s Monitor XT range, with a long-throw bi-laminate paper woofer and a 50W (100W peak) Class AB amplifier, rated 24 to 160Hz. The catch: No independent measurements yet, so its output can’t be compared directly with ranked subwoofers; the rating is estimated from the measured Polk Audio PSW108 (110.3dB in the 40 to 80Hz CEA-2010 bands).
Why pick the RSL (Rogersound Labs) Speedwoofer 10E: Independent CEA-2010 testing records 94.0 dB at 20 Hz and 107.3 dB through 40-80 Hz. The catch: The boxy cabinet skips the rounded edges of pricier subs in the lineup.
Buy the Polk Audio Monitor XT12. Both are rated the same for sound quality, and it costs $20.34 less than the RSL (Rogersound Labs) Speedwoofer 10E.
Worth knowing: the Polk Audio Monitor XT12 has not been measured yet. Its rating is estimated from related models, with a likely range of 2.9 to 3.6, so treat this verdict as provisional.
Looking for alternatives? See the complete Subwoofers rankings.
Specifications Side By Side
| Polk Audio Monitor XT12 | RSL (Rogersound Labs) Speedwoofer 10E | |
|---|---|---|
| Price | $319.00 | $339.34 |
| Ranked | #187 of 212 in Medium Home Subwoofers (30-75 lbs) Estimated | #183 of 212 in Medium Home Subwoofers (30-75 lbs) |
| Dimensions | 16.4”H x 16”W x 17.9”D (417 x 406 x 455 mm) | 15.5”H x 15”W x 15.8”D (393.7 x 381.0 x 400.1 mm) |
| Country | United States | United States |
| Warranty | 5/3 | 5/2 |
| Enclosure | ported | ported, rear |
| Drivers | 12” bi-laminate paper woofer | 10” driver |
| Amplifier Power | 50W RMS (100W peak) Class AB | 300W RMS / 800W peak |
| Frequency Response | 24-160Hz (manufacturer specified) | 26-200Hz, ±3dB |
| Weight | 39 lbs (17.7 kg) | 39.9 lbs (18.1 kg) |
| Output SPL at 20 Hz | - | 94.0 dB |
| Output SPL at 25 Hz | - | 98.4 dB |
| Output SPL at 31.5 Hz | - | 101.0 dB |
| Output SPL at 40 Hz | - | 105.6 dB |
| Output SPL at 50 Hz | - | 108.2 dB |
| Output SPL at 63 Hz | - | 108.1 dB |
| Output SPL at 80 Hz | - | 107.2 dB |
| Output SPL at 100 Hz | - | 106.2 dB |
| Output SPL at 125 Hz | - | 105.2 dB |
| CEA-2010-A Average (40-80Hz) | - | 107.3 dB |
| Measurement Source | - | Audioholics |
Related Speaker Comparisons
More top alternatives to RSL (Rogersound Labs) Speedwoofer 10E:
- Monoprice SW-15 vs RSL (Rogersound Labs) Speedwoofer 10E
- BIC America F-12 vs RSL (Rogersound Labs) Speedwoofer 10E
- Klipsch R-12SW vs RSL (Rogersound Labs) Speedwoofer 10E
- RSL (Rogersound Labs) Speedwoofer 10E vs BK Electronics XLS200-DF MK2
- RSL (Rogersound Labs) Speedwoofer 10E vs Klipsch Reference R-101SW
Prices on this page were last checked October 11, 2026 at 4:59 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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The Two Speakers In Full
Polk Audio Monitor XT12: $319.00 Estimated Amazon eBay
Same family: the Polk Audio XT15 (smaller bookshelf, rated 3.7/5), the Polk Monitor XT20 (larger bookshelf, rated 3.4/5), the Polk Audio XT60 (smaller floorstanding, rated 3.5/5), the Polk Audio XT70 (larger floorstanding, rated 3.6/5), the Polk Audio XT30 (smaller center, rated 3.6/5), the Polk Audio XT35 (larger center, rated 4.1/5) and the Polk Audio Monitor XT10 (smaller subwoofer, estimated 3.1/5). See every Polk Monitor generation.
Pros: The 12” subwoofer of Polk’s Monitor XT range, with a long-throw bi-laminate paper woofer and a 50W (100W peak) Class AB amplifier, rated 24 to 160Hz. It is one of the least expensive 12” subwoofers from a major brand.
Cons: No independent measurements yet, so its output can’t be compared directly with ranked subwoofers; the rating is estimated from the measured Polk Audio PSW108 (110.3dB in the 40 to 80Hz CEA-2010 bands). A 50W amplifier is very little for a 12” driver, so output is limited.
Full Polk Audio Monitor XT12 review and specifications →
| Released | Apr 2026 (6 months ago) |
|---|---|
| Amplifier Power | 50W RMS (100W peak) Class AB |
| Country | United States |
| Dimensions | 16.4”H x 16”W x 17.9”D (417 x 406 x 455 mm) |
| Drivers | 12” bi-laminate paper woofer |
| Enclosure | ported |
| Frequency Response | 24-160Hz (manufacturer specified) |
| Warranty | 5/3 |
| Weight | 39 lbs (17.7 kg) |
- Reviews, Comparisons and Sound Samples
- No independent measurement review is linked for this model; it is ranked from hands-on listening and comparison against similarly priced speakers.
- Head-to-Head Comparisons
RSL (Rogersound Labs) Speedwoofer 10E: $339.34 RSL eBay
Same family: the RSL (Rogersound Labs) Speedwoofer 10S (larger subwoofer, ranked higher, rated 3.4/5), the RSL (Rogersound Labs) Speedwoofer 10S MKII (larger subwoofer, ranked higher, rated 3.6/5) and the RSL (Rogersound Labs) Speedwoofer 12S (larger subwoofer, rated 3.7/5). See every RSL Speedwoofer generation.
Pros: Independent CEA-2010 testing records 94.0 dB at 20 Hz and 107.3 dB through 40-80 Hz. The rear-vented, 3-chamber Compression Guide enclosure with 10” driver keeps composure at high drive levels for $339 shipped.
Cons: The boxy cabinet skips the rounded edges of pricier subs in the lineup.
Full RSL (Rogersound Labs) Speedwoofer 10E review and specifications →
| Released | May 2024 (2 years ago) |
|---|---|
| Amplifier Power | 300W RMS / 800W peak |
| CEA-2010-A Average (40-80Hz) | 107.3 dB |
| Country | United States |
| Dimensions | 15.5”H x 15”W x 15.8”D (393.7 x 381.0 x 400.1 mm) |
| Drivers | 10” driver |
| Enclosure | ported, rear |
| Frequency Response | 26-200Hz, ±3dB |
| Measurement Source | Audioholics |
| Output SPL at 20 Hz | 94.0 dB |
| Output SPL at 25 Hz | 98.4 dB |
| Output SPL at 31.5 Hz | 101.0 dB |
| Output SPL at 40 Hz | 105.6 dB |
| Output SPL at 50 Hz | 108.2 dB |
| Output SPL at 63 Hz | 108.1 dB |
| Output SPL at 80 Hz | 107.2 dB |
| Output SPL at 100 Hz | 106.2 dB |
| Output SPL at 125 Hz | 105.2 dB |
| Warranty | 5/2 |
| Weight | 39.9 lbs (18.1 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Independently measured by Audioholics; the published figures above come from this ASR subwoofer measurement thread.
- Head-to-Head Comparisons
- RSL (Rogersound Labs) Speedwoofer 10E vs Klipsch R-12SW
- RSL (Rogersound Labs) Speedwoofer 10E vs BK Electronics XLS200-DF MK2
- RSL (Rogersound Labs) Speedwoofer 10E vs Klipsch Reference R-101SW
- RSL (Rogersound Labs) Speedwoofer 10E vs Polk Audio Signature Elite ES8 Subwoofer
- RSL (Rogersound Labs) Speedwoofer 10E vs Bestisan SW65D
- RSL (Rogersound Labs) Speedwoofer 10E vs BIC America F-12
- RSL (Rogersound Labs) Speedwoofer 10E vs Monoprice SW-15