Short answer: the Monoprice Premium Select 8in 200-Watt. It ranks #46 of 73 subwoofers by sound quality, rated 3.2/5, at $224.99; the Yamaha NS-SW100 ranks #54, rated 3.0/5, and costs $269.95, which makes this an easy call rather than a real tradeoff.
The case for the Monoprice Premium Select 8in 200-Watt: A low cost ported 8 inch subwoofer with a 200 watt amp, an easy entry point for a first subwoofer. The catch: Very compact 18.5 lbs (8.4 kg) size, limited 106.4 dB output, ported room interaction, and entry-level build.
The case for the Yamaha NS-SW100: An affordable compact ported 10 inch subwoofer with a 100 watt amp and a stylish cabinet. Watch for: There is no crossover control and no polarity switch, which makes it harder to blend with main speakers.
Buy the Monoprice Premium Select 8in 200-Watt. It is rated higher for sound quality than the Yamaha NS-SW100 and costs less, so only choose the other one for a particular feature it does better.
Looking for alternatives? See the complete Subwoofers rankings.
A low cost ported 8 inch subwoofer with a 200 watt amp, an easy entry point for a first subwoofer.
An affordable compact ported 10 inch subwoofer with a 100 watt amp and a stylish cabinet.
Prices on this page were last checked October 31, 2026 at 7:11 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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Specifications Side By Side
| Monoprice Premium Select 8in 200-Watt | Yamaha NS-SW100 | |
|---|---|---|
| Price | $224.99 | $269.95 |
| Ranked | #46 of 73 in Small Home Subwoofers (Under 30 lbs) | #54 of 73 in Small Home Subwoofers (Under 30 lbs) |
| Enclosure | ported, front | ported, side |
| 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 | 97.4 dB |
| Output SPL at 50 Hz | 104.8 dB | 103.2 dB |
| Output SPL at 63 Hz | 110.7 dB | 108.6 dB |
| Output SPL at 80 Hz | 111.8 dB | 110.7 dB |
| CEA-2010-A Average (40-80Hz) | 106.4 dB | 105.0 dB |
| Dimensions | 15”H x 10.6”W x 12.8”D (381.0 x 269.2 x 325.1 mm) | 13.9”H x 13.9”W x 16.1”D (352.3 x 352.3 x 409.4 mm) |
| Weight | 18.5 lbs (8.4 kg) | 26.5 lbs (12.0 kg) |
| Cabinet Color | black | black |
| Country | United States | Japan |
| Measurement Source | Brent Butterworth | ErinsAudioCorner |
| Drivers | 8” (203mm) driver | 10” (254mm) driver |
| Warranty | 1 year | 2 |
| Output SPL at 100 Hz | - | 109.7 dB |
| Output SPL at 125 Hz | - | 107.8 dB |
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