HSU Research ULS-15 MK2 vs Monoprice SSW-10

Last updated: September 19, 2026

Short answer: the HSU Research ULS-15 MK2 for output, the Monoprice SSW-10 for a slim sealed box. The SSW-10 is a 10-inch ultra-slim sealed sub, just 7” tall, with 150W RMS and 108.2dB average, and it costs $803.01 less. The ULS-15 MK2’s sealed design delivers tight, accurate bass with low bloat.

HSU Research ULS-15 MK2 vs Monoprice SSW-10

The case for the HSU Research ULS-15 MK2: Sealed design delivers tight, accurate bass with low bloat.

What the Monoprice SSW-10 gets right: 10-inch ultra-slim sealed (7” height) with 150W RMS, 108.2dB average.

Buy the HSU Research ULS-15 MK2 if sound quality is the priority over the price, or the Monoprice SSW-10 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) →Buy the Monoprice SSW-10 at Amazon ($195.99) →

Specifications Side By Side

HSU Research ULS-15 MK2 Monoprice SSW-10
Price$1,035$195.99
Ranked#3 of 145 in Medium Home Subwoofers (30-75 lbs)#72 of 145 in Medium Home Subwoofers (30-75 lbs)
Enclosuresealedsealed
Output SPL at 12.5 Hz93.7 dB-
Output SPL at 15 Hz98.0 dB-
Output SPL at 20 Hz102.4 dB76.8 dB
Output SPL at 25 Hz107.7 dB85.2 dB
Output SPL at 31.5 Hz113.4 dB96.8 dB
Output SPL at 40 Hz118.3 dB105.7 dB
Output SPL at 50 Hz120.8 dB110.7 dB
Output SPL at 63 Hz121.2 dB118.4 dB
Output SPL at 80 Hz121.1 dB122.1 dB
Output SPL at 100 Hz120.7 dB-
Output SPL at 125 Hz120.7 dB-
CEA-2010-A Average (40-80Hz)120.3 dB114.2 dB
Dimensions19"H x 18"W x 19.5"D (482.6 x 457.2 x 495.3 mm)7"H x 25"W x 15.7"D (177.8 x 635.0 x 398.8 mm)
Weight65 lbs (29.5 kg)30 lbs (13.6 kg)
Warranty7/2(+3)1
Cabinet Colorblack, woodblack
CountryUnited StatesUnited States
Measurement SourceAudioholicsBrent Butterworth
Frequency Response20-200Hz, ±1dB25Hz+
Amplifier Power600W RMS / 2000W peak150W RMS
Crossover Frequency30-90Hz adjustable-
Phase Control0°-180°-
FeaturesQ control, sealed subwoofer, EQ1/EQ2 modes-
Drivers15" (381mm) driver10" (254mm) driver
Buy the HSU Research ULS-15 MK2 at HSU Research ($999.00) →Buy the Monoprice SSW-10 at Amazon ($195.99) →

How HSU Research ULS-15 MK2 compares with other leading options:

Prices on this page were last checked September 23, 2026 at 11:24 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.

As an eBay Partner, we may be compensated if you make a purchase.

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.

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 →

Monoprice SSW-10: $195.99 Amazon eBay

Monoprice SSW-10 ranking card

Pros: 10-inch ultra-slim sealed (7” height) with 150W RMS, 108.2dB average. Hidden under furniture or placement flexibility. Compact design at $196 price. Decent output for slim profile.

Notes: Product # 33830, low profile (<8in)

Full Monoprice SSW-10 review and specifications →

Amplifier Power150W RMS
CEA-2010-A Average (40-80Hz)114.2 dB
Cabinet Colorblack
CountryUnited States
Dimensions7"H x 25"W x 15.7"D (177.8 x 635.0 x 398.8 mm)
Drivers10" (254mm) driver
Enclosuresealed
Frequency Response25Hz+
Measurement SourceBrent Butterworth
Output SPL at 20 Hz76.8 dB
Output SPL at 25 Hz85.2 dB
Output SPL at 31.5 Hz96.8 dB
Output SPL at 40 Hz105.7 dB
Output SPL at 50 Hz110.7 dB
Output SPL at 63 Hz118.4 dB
Output SPL at 80 Hz122.1 dB
Warranty1
Weight30 lbs (13.6 kg)
Check current price at Amazon ($195.99) →Search eBay for Monoprice SSW-10 →