Axiom Audio EP400 v3 Review: Ranked #46 of 48

Last updated: September 13, 2026

The Axiom Audio EP400 v3 ranks #46 out of 48 total Small Home Subwoofers (Under 30 lbs) for sound quality. See all Subwoofers rankings for every top pick.

Brand: Axiom

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Axiom Audio EP400 v3 - ranked #46 of 48 Small Home Subwoofers (Under 30 lbs) · Editor's rating 2.6/5

#46 Axiom Audio EP400 v3: $599 Discontinued eBay

Pros: Independent CEA-2010 testing records 90.0 dB at 20 Hz and 98.5 dB through 40-80 Hz. The sealed enclosure with 8” (203mm) driver is best suited to upper-bass support in a modest room.

Cons: Deep-bass output is limited relative to its midbass result, so it is not the right choice for the lowest movie effects. The 349.2H x 266.7W x 426.7D mm cabinet and 8.1 kg mass still need deliberate placement and calibration. Discontinued.

How it compares: Just above it: Paradigm Millenia CT - $100 cheaper. Just below it: PSB Speakers SubSeries 100 - $300 cheaper.

CEA-2010-A Average (40-80Hz)98.5 dB
CountryCanada
Dimensions13.7"H x 10.5"W x 16.8"D (349.2 x 266.7 x 426.7 mm)
DiscontinuedYes
Drivers8" (203mm) driver
Enclosuresealed
Measurement SourceAudioholics
Output SPL at 20 Hz90.0 dB
Output SPL at 25 Hz94.0 dB
Output SPL at 31.5 Hz97.0 dB
Output SPL at 40 Hz99.0 dB
Output SPL at 50 Hz99.0 dB
Output SPL at 63 Hz98.0 dB
Output SPL at 80 Hz98.0 dB
Output SPL at 100 Hz98.0 dB
Warranty5
Weight17.9 lbs (8.1 kg)

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