Short answer: the Klipsch Flexus Sub 100. It ranks #16 of 48 subwoofers by sound quality, rated 3.4/5, at $349.99; the Klipsch R-10SW ranks #32, rated 3.2/5, and costs $399, so there is little reason to consider the other one.
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 Klipsch R-10SW: Independent CEA-2010 testing records 106.8 dB through 40-80 Hz. Watch for: Without a published 20 Hz result, deep-bass capability is less certain than the midbass figure.
Buy the Klipsch Flexus Sub 100. It is rated higher for sound quality than the Klipsch R-10SW and costs less, so it is the default pick unless a specific strength of the other one matters more to you.
Still deciding? The full Subwoofers rankings cover every ranked option.
Specifications Side By Side
| Klipsch Flexus Sub 100 | Klipsch R-10SW | |
|---|---|---|
| Price | $349.99 | $399 |
| Ranked | #16 of 48 in Small Home Subwoofers (Under 30 lbs) | #32 of 48 in Small Home Subwoofers (Under 30 lbs) |
| Enclosure | sealed | ported, rear |
| 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 | 103.0 dB |
| Output SPL at 50 Hz | 109.0 dB | 106.5 dB |
| Output SPL at 63 Hz | 112.4 dB | 109.0 dB |
| CEA-2010-A Average (40-80Hz) | 109.1 dB (avg of 3/4 bands) | 106.8 dB |
| Dimensions | 13.4”H x 13.2”W x 13.7”D (339.9 x 335.0 x 349.2 mm) | 14”H x 12.5”W x 15.7”D (355.6 x 317.5 x 398.8 mm) |
| Weight | 20.7 lbs (9.4 kg) | 25.6 lbs (11.6 kg) |
| Warranty | 2/5 | 5/2 |
| Measurement Source | Brent Butterworth | ErinsAudioCorner |
| Drivers | 10” (254mm) driver | 10” (254mm) driver |
| Output SPL at 80 Hz | - | 108.8 dB |
| Output SPL at 100 Hz | - | 107.0 dB |
| Output SPL at 125 Hz | - | 104.1 dB |
| Cabinet Color | - | black |
| Country | - | United States |
Related Speaker Comparisons
How Klipsch Flexus Sub 100 compares with other leading options:
- SVS SB-1000 PRO vs Klipsch Flexus Sub 100
- 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 Monitor Audio BRW10
- Klipsch Flexus Sub 100 vs SVS SB-1000 PRO
- Klipsch Flexus Sub 100 vs Monoprice Premium Select 8in 200-Watt
Klipsch R-10SW: $399 eBay
Pros: Independent CEA-2010 testing records 106.8 dB through 40-80 Hz. The ported, rear enclosure with 10” (254mm) driver is a compact way to add useful midbass support to a modest system.
Cons: Without a published 20 Hz result, deep-bass capability is less certain than the midbass figure. The 355.6H x 317.5W x 398.8D mm cabinet and 11.6 kg mass still need careful placement and calibration.
Full Klipsch R-10SW review and specifications →
| CEA-2010-A Average (40-80Hz) | 106.8 dB |
|---|---|
| Cabinet Color | black |
| Country | United States |
| Dimensions | 14”H x 12.5”W x 15.7”D (355.6 x 317.5 x 398.8 mm) |
| Drivers | 10” (254mm) driver |
| Enclosure | ported, rear |
| Measurement Source | ErinsAudioCorner |
| Output SPL at 40 Hz | 103.0 dB |
| Output SPL at 50 Hz | 106.5 dB |
| Output SPL at 63 Hz | 109.0 dB |
| Output SPL at 80 Hz | 108.8 dB |
| Output SPL at 100 Hz | 107.0 dB |
| Output SPL at 125 Hz | 104.1 dB |
| Warranty | 5/2 |
| Weight | 25.6 lbs (11.6 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Independently measured by ErinsAudioCorner; the published figures above come from this ASR subwoofer measurement thread.
- Head-to-Head Comparisons