Short answer: the PreSonus Eris Sub 8BT. It ranks #13 of 73 subwoofers by sound quality, rated 3.6/5, at $209.99; the Monoprice Premium Select 8in 200-Watt ranks #46, rated 3.2/5, and costs $224.99, so there is not much of a tradeoff to weigh.
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. Watch for: Very compact 18.5 lbs (8.4 kg) size, limited 106.4 dB output, ported room interaction, and entry-level build.
The PreSonus Eris Sub 8BT is the better-sounding option. An affordable, light ported 8 inch subwoofer sized for a small room or a desktop studio setup. Watch for: Warranty is a below-average 1 year.
Buy the PreSonus Eris Sub 8BT. It is rated higher for sound quality than the Monoprice Premium Select 8in 200-Watt 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, light ported 8 inch subwoofer sized for a small room or a desktop studio setup.
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 | PreSonus Eris Sub 8BT | |
|---|---|---|
| Price | $224.99 | $209.99 |
| Ranked | #46 of 73 in Small Home Subwoofers (Under 30 lbs) | #13 of 73 in Small Home Subwoofers (Under 30 lbs) |
| Enclosure | ported, front | ported |
| Output SPL at 20 Hz | 51.3 dB | 77.7 dB |
| Output SPL at 25 Hz | 69.3 dB | 93.5 dB |
| Output SPL at 31.5 Hz | 91.8 dB | 99.6 dB |
| Output SPL at 40 Hz | 98.3 dB | 105.7 dB |
| Output SPL at 50 Hz | 104.8 dB | 109.4 dB |
| Output SPL at 63 Hz | 110.7 dB | 115.0 dB |
| Output SPL at 80 Hz | 111.8 dB | 115.3 dB |
| CEA-2010-A Average (40-80Hz) | 106.4 dB | 111.3 dB |
| Dimensions | 15”H x 10.6”W x 12.8”D (381.0 x 269.2 x 325.1 mm) | 11.7”H x 9.8”W x 12.7”D (297.9 x 249.9 x 323.1 mm) |
| Weight | 18.5 lbs (8.4 kg) | 16.3 lbs (7.4 kg) |
| Cabinet Color | black | - |
| Country | United States | China |
| Measurement Source | Brent Butterworth | Brent Butterworth |
| Drivers | 8” (203mm) driver | 8” (203mm) driver |
| Warranty | 1 year | 1 |
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