Short answer: the Klipsch Flexus Sub 100 if sound quality matters most, the Monoprice Premium Select 8in 200-Watt if price matters most. The Klipsch Flexus Sub 100 ranks #16 of 48 subwoofers at $349.99. The Monoprice Premium Select 8in 200-Watt ranks #33 at $224.99, $125 cheaper.
What the Monoprice Premium Select 8in 200-Watt offers: 8-inch ported driver still manages 106.4dB CEA-2010-A average at the lowest price of any subwoofer tested in this weight class. An easy entry point for a first subwoofer. Watch for: Very compact 8.4 kg size, limited 106.4 dB output, ported room interaction, and entry-level build.
What the Klipsch Flexus Sub 100 offers: 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. Watch for: 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.
Buy the Monoprice Premium Select 8in 200-Watt if the price is the priority over sound quality, or the Klipsch Flexus Sub 100 if sound quality is the priority over the price.
Want more options? Browse the full Subwoofers rankings.
Specifications Side By Side
| Monoprice Premium Select 8in 200-Watt | Klipsch Flexus Sub 100 | |
|---|---|---|
| Price | $224.99 | $349.99 |
| Ranked | #33 of 48 in Small Home Subwoofers (Under 30 lbs) | #16 of 48 in Small Home Subwoofers (Under 30 lbs) |
| Enclosure | ported, front | sealed |
| Output SPL at 20 Hz | 51.3 dB | 90.2 dB |
| Output SPL at 25 Hz | 69.3 dB | 96.7 dB |
| Output SPL at 31.5 Hz | 91.8 dB | 101.2 dB |
| Output SPL at 40 Hz | 98.3 dB | 105.9 dB |
| Output SPL at 50 Hz | 104.8 dB | 109.0 dB |
| Output SPL at 63 Hz | 110.7 dB | 112.4 dB |
| Output SPL at 80 Hz | 111.8 dB | - |
| CEA-2010-A Average (40-80Hz) | 106.4 dB | 109.1 dB (avg of 3/4 bands) |
| Dimensions | 15"H x 10.6"W x 12.8"D (381.0 x 269.2 x 325.1 mm) | 13.4"H x 13.2"W x 13.7"D (339.9 x 335.0 x 349.2 mm) |
| Weight | 18.5 lbs (8.4 kg) | 20.7 lbs (9.4 kg) |
| Cabinet Color | black | - |
| Country | United States | - |
| Measurement Source | Brent Butterworth | Brent Butterworth |
| Drivers | 8" (203mm) driver | 10" (254mm) driver |
| Warranty | - | 2/5 |
Related Speaker Comparisons
How Klipsch Flexus Sub 100 compares with other leading options:
- Monoprice Premium Select 8in 200-Watt vs Monoprice Monolith 8 THX Certified
- Monoprice Premium Select 8in 200-Watt vs Klipsch HD Theater 600
- Monoprice Premium Select 8in 200-Watt vs Klipsch R-10SW
- Monoprice Premium Select 8in 200-Watt vs Gallo Acoustics TR-1
- Monoprice Premium Select 8in 200-Watt vs Wharfedale DX-1
Prices on this page were last checked September 16, 2026 at 12:41 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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The Two Speakers In Full
Monoprice Premium Select 8in 200-Watt: $224.99 Amazon eBay
Pros: 8-inch ported driver still manages 106.4dB CEA-2010-A average at the lowest price of any subwoofer tested in this weight class. An easy entry point for a first subwoofer.
Cons: Very compact 8.4 kg size, limited 106.4 dB output, ported room interaction, and entry-level build.
Notes: Product # 14567
Full Monoprice Premium Select 8in 200-Watt review and specifications →
| CEA-2010-A Average (40-80Hz) | 106.4 dB |
|---|---|
| Cabinet Color | black |
| Country | United States |
| Dimensions | 15"H x 10.6"W x 12.8"D (381.0 x 269.2 x 325.1 mm) |
| Drivers | 8" (203mm) driver |
| Enclosure | ported, front |
| Measurement Source | Brent Butterworth |
| Output SPL at 20 Hz | 51.3 dB |
| Output SPL at 25 Hz | 69.3 dB |
| Output SPL at 31.5 Hz | 91.8 dB |
| Output SPL at 40 Hz | 98.3 dB |
| Output SPL at 50 Hz | 104.8 dB |
| Output SPL at 63 Hz | 110.7 dB |
| Output SPL at 80 Hz | 111.8 dB |
| Weight | 18.5 lbs (8.4 kg) |
- Links
- 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
- Monoprice Premium Select 8in 200-Watt vs Klipsch R-10SW
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- Monoprice Premium Select 8in 200-Watt vs Yamaha NS-SW100
- Monoprice Premium Select 8in 200-Watt vs Yamaha HS8S
- Monoprice Premium Select 8in 200-Watt vs JL Audio Dominion d108
- Monoprice Premium Select 8in 200-Watt vs Q Acoustics 3060S
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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.