HSU Research ULS-15 MK2 vs JTR Speakers Captivator 212PRO

Last updated: September 19, 2026

Short answer: the HSU Research ULS-15 MK2 for tight sealed bass, the JTR Captivator 212PRO for output. The ULS-15 MK2’s sealed design delivers tight, accurate bass with low bloat and it costs $1800 less. The Captivator 212PRO is a dual 12-inch ported design with a 1200W DSP amp and full digital sound processor, but it carries premium pricing, ported room interaction and a 32 kg (70.5 lbs) mid-size footprint.

HSU Research ULS-15 MK2 vs JTR Speakers Captivator 212PRO

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

What the JTR Speakers Captivator 212PRO gets right: Dual 12-inch ported with 1200W DSP amp and full digital sound processor. Set against that: Premium pricing at $2,600, ported room interaction, and 32 kg (70.5 lbs) mid-size footprint.

Buy the HSU Research ULS-15 MK2 if the price is the priority over sound quality, or the JTR Speakers Captivator 212PRO if sound quality is the priority over the price.

Looking for alternatives? See the complete Subwoofers rankings.

Buy the JTR Speakers Captivator 212PRO at JTR Speakers ($2,799 each) →Buy the HSU Research ULS-15 MK2 at HSU Research ($999.00) →

Specifications Side By Side

HSU Research ULS-15 MK2 JTR Speakers Captivator 212PRO
Price$1,035$2,600
Ranked#3 of 145 in Medium Home Subwoofers (30-75 lbs)#1 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 dB-
Output SPL at 25 Hz107.7 dB95.4 dB
Output SPL at 31.5 Hz113.4 dB112.2 dB
Output SPL at 40 Hz118.3 dB122.7 dB
Output SPL at 50 Hz120.8 dB129.2 dB
Output SPL at 63 Hz121.2 dB131.3 dB
Output SPL at 80 Hz121.1 dB133.2 dB
Output SPL at 100 Hz120.7 dB134.6 dB
Output SPL at 125 Hz120.7 dB135.2 dB
CEA-2010-A Average (40-80Hz)120.3 dB129.1 dB
Dimensions19"H x 18"W x 19.5"D (482.6 x 457.2 x 495.3 mm)16"H x 30"W x 22.5"D (406.4 x 762.0 x 571.5 mm)
Weight65 lbs (29.5 kg)71 lbs (32.2 kg)
Warranty7/2(+3)5/3
Cabinet Colorblack, woodblack
CountryUnited StatesUnited States
Measurement SourceAudioholicsData-bass
Frequency Response20-200Hz, ±1dB-
Amplifier Power600W RMS / 2000W peak1200W RMS; Class D with DSP
Crossover Frequency30-90Hz adjustable-
Phase Control0°-180°-
FeaturesQ control, sealed subwoofer, EQ1/EQ2 modes-
Drivers15" (381mm) driver2x 12" (305mm) drivers
Inputs-XLR and RCA
XLR Input-Yes
RCA Input-Yes
TRS Input-No
Optical Input-No
Coaxial Input-No
USB Input-No
HDMI Input-No
AES Input-No
Aux Input-No
Buy the JTR Speakers Captivator 212PRO at JTR Speakers ($2,799 each) →Buy the HSU Research ULS-15 MK2 at HSU Research ($999.00) →

More top alternatives to JTR Speakers Captivator 212PRO:

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.

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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.

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 →

JTR Speakers Captivator 212PRO: $2,600 JTR Speakers eBay

JTR Speakers Captivator 212PRO ranking card

Pros: Dual 12-inch ported with 1200W DSP amp and full digital sound processor. Dual-12 output beyond impressive with distortion-free performance. Bulletproof construction for pro sound installations.

Cons: Premium pricing at $2799, ported room interaction, and 32 kg mid-size footprint.

Notes: Looks like “PA sub”

Full JTR Speakers Captivator 212PRO review and specifications →

AES InputNo
Amplifier Power1200W RMS; Class D with DSP
Aux InputNo
CEA-2010-A Average (40-80Hz)129.1 dB
Cabinet Colorblack
Coaxial InputNo
CountryUnited States
Dimensions16"H x 30"W x 22.5"D (406.4 x 762.0 x 571.5 mm)
Drivers2x 12" (305mm) drivers
Enclosureported, front
HDMI InputNo
InputsXLR and RCA
Measurement SourceData-bass
Optical InputNo
Output SPL at 25 Hz95.4 dB
Output SPL at 31.5 Hz112.2 dB
Output SPL at 40 Hz122.7 dB
Output SPL at 50 Hz129.2 dB
Output SPL at 63 Hz131.3 dB
Output SPL at 80 Hz133.2 dB
Output SPL at 100 Hz134.6 dB
Output SPL at 125 Hz135.2 dB
RCA InputYes
TRS InputNo
USB InputNo
Warranty5/3
Weight71 lbs (32.2 kg)
XLR InputYes
Check current price at JTR Speakers ($2,799 each) →Search eBay for JTR Speakers Captivator 212PRO →