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

Last updated: September 16, 2026

Short answer: the HSU Research ULS-15 MK2 if sound quality matters most, the BIC America PL-300 if price matters most. The HSU Research ULS-15 MK2 ranks #3 of 145 subwoofers at $999. The BIC America PL-300 ranks #63 at $450, $549 cheaper.

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

What the HSU Research ULS-15 MK2 offers: Sealed design delivers tight, accurate bass with low bloat. 600W BASH amplifier. 30% less expensive and 20 lbs lighter than predecessor. Easy integration with Q and EQ controls. Great value in the 15” sub market at under $850 shipped. Watch for: No detailed measurement caveats are currently recorded.

What the BIC America PL-300 offers: 12-inch triple-ported variable tuning with 350W RMS offers unusually low 20Hz extension under $500. Three-port design delivers more output than single-port competitors. Beefy amp ensures distortion-free sound. Watch for: No detailed measurement caveats are currently recorded.

Buy the HSU Research ULS-15 MK2 if sound quality is the priority over the price, or the BIC America PL-300 if the price is the priority over sound quality.

Looking for alternatives? See the complete Subwoofers rankings.

Buy the HSU Research ULS-15 MK2 at HSU Research ($999.00) →

Specifications Side By Side

HSU Research ULS-15 MK2 BIC America PL-300
Price$1,035$450
Ranked#3 of 145 in Medium Home Subwoofers (30-75 lbs)#63 of 145 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
Buy the HSU Research ULS-15 MK2 at HSU Research ($999.00) →

More top alternatives to HSU Research ULS-15 MK2:

Prices on this page were last checked September 16, 2026 at 12:41 AM 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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The Two Speakers In Full

HSU Research ULS-15 MK2: $1,035 HSU Research eBay

HSU Research ULS-15 MK2 ranking card

Pros: Sealed design delivers tight, accurate bass with low bloat. 600W BASH amplifier. 30% less expensive and 20 lbs lighter than predecessor. Easy integration with Q and EQ controls. Great value in the 15” sub market at under $850 shipped.

Notes: Price includes shipping

Full HSU Research ULS-15 MK2 review and specifications →

Amplifier Power600W RMS / 2000W peak
CEA-2010-A Average (40-80Hz)120.3 dB
Cabinet Colorblack, wood
CountryUnited States
Crossover Frequency30-90Hz adjustable
Dimensions19"H x 18"W x 19.5"D (482.6 x 457.2 x 495.3 mm)
Drivers15" (381mm) driver
Enclosuresealed
FeaturesQ control, sealed subwoofer, EQ1/EQ2 modes
Frequency Response20-200Hz, ±1dB
Measurement SourceAudioholics
Output SPL at 12.5 Hz93.7 dB
Output SPL at 15 Hz98.0 dB
Output SPL at 20 Hz102.4 dB
Output SPL at 25 Hz107.7 dB
Output SPL at 31.5 Hz113.4 dB
Output SPL at 40 Hz118.3 dB
Output SPL at 50 Hz120.8 dB
Output SPL at 63 Hz121.2 dB
Output SPL at 80 Hz121.1 dB
Output SPL at 100 Hz120.7 dB
Output SPL at 125 Hz120.7 dB
Phase Control0°-180°
Warranty7/2(+3)
Weight65 lbs (29.5 kg)
Check current price at HSU Research ($999.00) →Search eBay for HSU Research ULS-15 MK2 →

BIC America PL-300: $450 eBay

BIC America PL-300 ranking card

Pros: 12-inch triple-ported variable tuning with 350W RMS offers unusually low 20Hz extension under $500. Three-port design delivers more output than single-port competitors. Beefy amp ensures distortion-free sound.

Full BIC America PL-300 review and specifications →

Amplifier Power350W RMS
CEA-2010-A Average (40-80Hz)113.7 dB
Cabinet Colorblack
CountryUnited States
Dimensions18"H x 15.2"W x 18.7"D (457.2 x 387.3 x 476.2 mm)
Drivers12" (305mm) driver
Enclosureported, front
Frequency Response15-200Hz
Measurement SourceAudioholics
Output SPL at 20 Hz96.6 dB
Output SPL at 25 Hz102.8 dB
Output SPL at 31.5 Hz109.2 dB
Output SPL at 40 Hz114.0 dB
Output SPL at 50 Hz116.3 dB
Output SPL at 63 Hz113.5 dB
Output SPL at 80 Hz110.9 dB
Output SPL at 100 Hz108.8 dB
Output SPL at 125 Hz106.8 dB
Warranty8/5
Weight48.1 lbs (21.8 kg)
Search eBay for BIC America PL-300 →