Short answer: the Klipsch Flexus Sub 100. It ranks #16 of 48 subwoofers by sound quality, rated 3.4/5, at $349.99; the Monitor Audio BRW10 ranks #27, rated 3.3/5, and costs $699, which makes this an easy call rather than a real tradeoff.
What the Klipsch Flexus Sub 100 does well: Independent CEA-2010 testing records 90.2 dB at 20 Hz and 109.1 dB (avg of 3/4 bands) through 40-80 Hz. Watch for: Only works with Klipsch Flexus soundbars, not as a standalone LFE sub.
Why pick the Monitor Audio BRW10: Independent CEA-2010 testing records 70.1 dB at 20 Hz and 107.0 dB through 40-80 Hz. The catch: Deep-bass output is more limited than the strong 40-80 Hz result suggests, so it is not the right choice when the lowest movie effects are the priority.
Worth knowing: the Monitor Audio BRW10 has been discontinued and is hard to find new at this point.
Buy the Klipsch Flexus Sub 100. It is rated higher for sound quality than the Monitor Audio BRW10 and costs less, which makes it the one to get unless you need something the other one does better.
Want more options? Browse the full Subwoofers rankings.
Specifications Side By Side
| Klipsch Flexus Sub 100 | Monitor Audio BRW10 | |
|---|---|---|
| Price | $349.99 | $699 Discontinued |
| Ranked | #16 of 48 in Small Home Subwoofers (Under 30 lbs) | #27 of 48 in Small Home Subwoofers (Under 30 lbs) |
| Enclosure | sealed | ported, rear |
| Output SPL at 20 Hz | 90.2 dB | 70.1 dB |
| Output SPL at 25 Hz | 96.7 dB | 88.1 dB |
| Output SPL at 31.5 Hz | 101.2 dB | 93.1 dB |
| Output SPL at 40 Hz | 105.9 dB | 100.4 dB |
| Output SPL at 50 Hz | 109.0 dB | 104.7 dB |
| Output SPL at 63 Hz | 112.4 dB | 110.5 dB |
| CEA-2010-A Average (40-80Hz) | 109.1 dB (avg of 3/4 bands) | 107.0 dB |
| Dimensions | 13.4”H x 13.2”W x 13.7”D (339.9 x 335.0 x 349.2 mm) | 12.6”H x 12.6”W x 13.4”D (320.5 x 320.5 x 339.6 mm) |
| Weight | 20.7 lbs (9.4 kg) | 27.6 lbs (12.5 kg) |
| Warranty | 2/5 | - |
| Measurement Source | Brent Butterworth | Ilkka Rissanen |
| Drivers | 10” (254mm) driver | 10” (254mm) driver |
| Output SPL at 80 Hz | - | 112.3 dB |
| Cabinet Color | - | wood |
| Country | - | United Kingdom |
| Discontinued | - | Yes |
Related Speaker Comparisons
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- SVS 3000 Micro vs Klipsch Flexus Sub 100
- Klipsch Flexus Sub 100 vs MartinLogan Dynamo 700w
- Klipsch Flexus Sub 100 vs Klipsch HD Theater 600
- Klipsch Flexus Sub 100 vs ELAC SUB1010
Prices on this page were last checked September 26, 2026 at 11:14 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
Klipsch Flexus Sub 100: $349.99 Amazon eBay
Pros: Independent CEA-2010 testing records 90.2 dB at 20 Hz and 109.1 dB (avg of 3/4 bands) through 40-80 Hz. The sealed enclosure with a 10” driver suits a small room.
Cons: Only works with Klipsch Flexus soundbars, not as a standalone LFE sub. The 339.9H x 335.0W x 349.2D mm cabinet and 9.4 kg mass still need deliberate placement.
Full Klipsch Flexus Sub 100 review and specifications →
| CEA-2010-A Average (40-80Hz) | 109.1 dB (avg of 3/4 bands) |
|---|---|
| Dimensions | 13.4”H x 13.2”W x 13.7”D (339.9 x 335.0 x 349.2 mm) |
| Drivers | 10” (254mm) driver |
| Enclosure | sealed |
| Measurement Source | Brent Butterworth |
| Output SPL at 20 Hz | 90.2 dB |
| Output SPL at 25 Hz | 96.7 dB |
| Output SPL at 31.5 Hz | 101.2 dB |
| Output SPL at 40 Hz | 105.9 dB |
| Output SPL at 50 Hz | 109.0 dB |
| Output SPL at 63 Hz | 112.4 dB |
| Warranty | 2/5 |
| Weight | 20.7 lbs (9.4 kg) |
- Reviews, Comparisons and Sound Samples
- Independently measured by Brent Butterworth; the published figures above come from this ASR subwoofer measurement thread.
- Head-to-Head Comparisons
- Klipsch Flexus Sub 100 vs MartinLogan Dynamo 700w
- Klipsch Flexus Sub 100 vs Klipsch HD Theater 600
- Klipsch Flexus Sub 100 vs ELAC SUB1010
- Klipsch Flexus Sub 100 vs SVS 3000 Micro
- Klipsch Flexus Sub 100 vs SVS SB-1000 PRO
- Klipsch Flexus Sub 100 vs Klipsch R-10SW
- Klipsch Flexus Sub 100 vs Monoprice Premium Select 8in 200-Watt
Monitor Audio BRW10: $699 Discontinued eBay
Pros: Independent CEA-2010 testing records 70.1 dB at 20 Hz and 107.0 dB through 40-80 Hz. The ported, rear enclosure with 10” (254mm) driver delivers substantial upper-bass output for movie effects and music.
Cons: Deep-bass output is more limited than the strong 40-80 Hz result suggests, so it is not the right choice when the lowest movie effects are the priority. The 320.5H x 320.5W x 339.6D mm cabinet and 12.5 kg mass still require deliberate placement and calibration. Discontinued.
Full Monitor Audio BRW10 review and specifications →
| CEA-2010-A Average (40-80Hz) | 107.0 dB |
|---|---|
| Cabinet Color | wood |
| Country | United Kingdom |
| Dimensions | 12.6”H x 12.6”W x 13.4”D (320.5 x 320.5 x 339.6 mm) |
| Discontinued | Yes |
| Drivers | 10” (254mm) driver |
| Enclosure | ported, rear |
| Measurement Source | Ilkka Rissanen |
| Output SPL at 20 Hz | 70.1 dB |
| Output SPL at 25 Hz | 88.1 dB |
| Output SPL at 31.5 Hz | 93.1 dB |
| Output SPL at 40 Hz | 100.4 dB |
| Output SPL at 50 Hz | 104.7 dB |
| Output SPL at 63 Hz | 110.5 dB |
| Output SPL at 80 Hz | 112.3 dB |
| Weight | 27.6 lbs (12.5 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Independently measured by Ilkka Rissanen; the published figures above come from this ASR subwoofer measurement thread.
- Head-to-Head Comparisons
- Monitor Audio BRW10 vs ELAC SUB1010
- Monitor Audio BRW10 vs Klipsch HD Theater 600
- Monitor Audio BRW10 vs Q Acoustics 3060S
- Monitor Audio BRW10 vs Klipsch R-10SW
- Monitor Audio BRW10 vs Monoprice Premium Select 8in 200-Watt
- Monitor Audio BRW10 vs ELAC IW-S10EQ in-wall
- Monitor Audio BRW10 vs MartinLogan Dynamo 700w
- Monitor Audio BRW10 vs SVS 3000 Micro
- See all 10 comparisons