PreSonus Eris Sub 8BT Review: Rated 3.6/5

Last updated: October 21, 2026

The PreSonus Eris Sub 8BT is rated 3.6/5 for sound quality, #13 of 73 Small Home Subwoofers (Under 30 lbs). See all Subwoofers rankings for every top pick.

PreSonus Eris Sub 8BT · Editor's rating 3.6/5, ranked #13 of 73 Small Home Subwoofers (Under 30 lbs)
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Prices on this page were last checked October 26, 2026 at 11:06 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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Brand: PreSonus

#13 PreSonus Eris Sub 8BT: $209.99 Amazon $209.99 eBay

Same family: the PreSonus Eris E3.5 2nd Gen (bookshelf, rated 2.5/5). See every PreSonus Eris generation.

Pros: An affordable, light ported 8 inch subwoofer sized for a small room or a desktop studio setup. Independent CEA-2010 testing records 77.7 dB at 20 Hz and 111.3 dB through 40-80 Hz. The ported enclosure with an 8” driver suits a small room or desktop-adjacent setup.

Cons: Warranty is a below-average 1 year. The 297.9H x 249.9W x 323.1D mm cabinet and 7.4 kg mass still need deliberate placement.

ReleasedNov 2023 (2 years ago)
CEA-2010-A Average (40-80Hz)111.3 dB
CountryChina
Dimensions11.7”H x 9.8”W x 12.7”D (297.9 x 249.9 x 323.1 mm)
Drivers8” (203mm) driver
Enclosureported
Measurement SourceBrent Butterworth
Output SPL at 20 Hz77.7 dB
Output SPL at 25 Hz93.5 dB
Output SPL at 31.5 Hz99.6 dB
Output SPL at 40 Hz105.7 dB
Output SPL at 50 Hz109.4 dB
Output SPL at 63 Hz115.0 dB
Output SPL at 80 Hz115.3 dB
Warranty1
Weight16.3 lbs (7.4 kg)
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Price history

$209.99Sep 12, 2026 to Oct 26, 2026: $209.99Sep 2026Today

The price has held at $209.99 since Sep 2026.

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