HSU Research ULS-15 MK2 vs BIC America PL-300

Last updated: October 27, 2026

Short answer: the HSU Research ULS-15 MK2. It ranks #4 of 212 subwoofers by sound quality, rated 4.2/5, at $999. The BIC America PL-300 ranks #89, rated 3.7/5, at $449, $550 cheaper, not enough of a saving to outweigh the sound-quality gap.

HSU Research ULS-15 MK2 vs BIC America PL-300

The HSU Research ULS-15 MK2 is the better-sounding choice. A sealed 15 inch subwoofer with tight, accurate bass, a great value in large subs. Watch for: No phone app or room correction, so setup is manual, and it ships in a plain vinyl finish where a similarly priced SVS offers gloss black.

Why pick the BIC America PL-300: An affordable ported 12 inch subwoofer with three ports, adjustable tuning and a strong amplifier. The tradeoff: At 48.1 lbs (21.8 kg) and 457 x 387 x 476mm it is a large, heavy cabinet that needs floor space.

Buy the HSU Research ULS-15 MK2. It is rated higher for sound quality, and saving $550 with the BIC America PL-300 does not make up for the sound-quality gap.

Looking for alternatives? See the complete Subwoofers rankings.

HSU Research ULS-15 MK2

A sealed 15 inch subwoofer with tight, accurate bass, a great value in large subs.

Driver: 15"Enclosure: SealedOutput 40-80 Hz: 120.3 dBWeight: 65 lbs
HSU Research $999.00 eBay
$999
BIC America PL-300

An affordable ported 12 inch subwoofer with three ports, adjustable tuning and a strong amplifier.

Driver: 12"Enclosure: PortedOutput 40-80 Hz: 113.7 dBWeight: 48.1 lbs
Amazon $449.00 eBay
$449

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

HSU Research ULS-15 MK2 BIC America PL-300
Price$999.00$449.00
Ranked#4 of 212 in Medium Home Subwoofers (30-75 lbs)#89 of 212 in Medium Home Subwoofers (30-75 lbs)
Enclosuresealedported, front
Output SPL at 12.5 Hz93.7 dB-
Output SPL at 15 Hz98.0 dB-
Output SPL at 20 Hz102.4 dB96.6 dB
Output SPL at 25 Hz107.7 dB102.8 dB
Output SPL at 31.5 Hz113.4 dB109.2 dB
Output SPL at 40 Hz118.3 dB114.0 dB
Output SPL at 50 Hz120.8 dB116.3 dB
Output SPL at 63 Hz121.2 dB113.5 dB
Output SPL at 80 Hz121.1 dB110.9 dB
Output SPL at 100 Hz120.7 dB108.8 dB
Output SPL at 125 Hz120.7 dB106.8 dB
CEA-2010-A Average (40-80Hz)120.3 dB113.7 dB
Dimensions19”H x 18”W x 19.5”D (482.6 x 457.2 x 495.3 mm)18”H x 15.2”W x 18.7”D (457.2 x 387.3 x 476.2 mm)
Weight65 lbs (29.5 kg)48.1 lbs (21.8 kg)
Warranty7/2(+3)8/5
Cabinet Colorblack, woodblack
CountryUnited StatesUnited States
Measurement SourceAudioholicsAudioholics
Frequency Response20-200Hz, ±1dB15-200Hz
Amplifier Power600W RMS / 2000W peak350W RMS
Crossover Frequency30-90Hz adjustable-
Phase Control0°-180°-
FeaturesQ control, sealed subwoofer, EQ1/EQ2 modes-
Drivers15” (381mm) driver12” (305mm) driver

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