HSU Research VTF-15H MK2 vs Monoprice Monolith M-15 V2

Last updated: August 9, 2026

Short answer: the HSU Research VTF-15H MK2. It ranks #41 of 97 subwoofers at $1499; the Monoprice Monolith M-15 V2 ranks #55 and costs $1500, so there is not much of a tradeoff to weigh.

What the HSU Research VTF-15H MK2 gets right: 15-inch ported driver delivers 121.8dB CEA-2010-A average from HSU Research’s long-running VTF series. The tradeoff: Ported enclosure prone to room modes at certain frequencies, mid-large 50 kg size, and $1,500 price point.

Buy the HSU Research VTF-15H MK2 if the ranking matters more than the price. Buy the Monoprice Monolith M-15 V2 if the price matters more than the ranking.

Specifications Side By Side

HSU Research VTF-15H MK2 Monoprice Monolith M-15 V2
Price$1,499$1,500
Ranked#41 of 97 in Large Powered Home Subwoofers (Over 75 lbs)#55 of 97 in Large Powered Home Subwoofers (Over 75 lbs)
Enclosureported, frontported, front
Output SPL at 15 Hz101.6 dB106.3 dB
Output SPL at 20 Hz108.4 dB112.6 dB
Output SPL at 25 Hz114.8 dB116.6 dB
Output SPL at 31.5 Hz119.4 dB119.5 dB
Output SPL at 40 Hz122.9 dB120.9 dB
Output SPL at 50 Hz122.5 dB120.6 dB
Output SPL at 63 Hz121.1 dB120.0 dB
Output SPL at 80 Hz120.5 dB118.7 dB
CEA-2010-A Average (40-80Hz)121.8 dB120.0 dB
Dimensions24.0"H x 18.0"W x 26.0"D (609.6 x 457.2 x 660.4 mm)28.7"H x 17.7"W x 26.8"D (729.0 x 449.6 x 680.7 mm)
Weight110 lbs / 49.9 kg132.9 lbs / 60.3 kg
Warranty7/2(+3)5
Cabinet Colorblack, woodblack
CountryUnited StatesUnited States
Measurement SourceManufacturerManufacturer
Drivers15" (381mm) driver15" (381mm) driver
Output SPL at 12.5 Hz-91.0 dB
Output SPL at 100 Hz-120.1 dB
Output SPL at 125 Hz-120.2 dB

The Two Speakers In Full

HSU Research VTF-15H MK2: $1,499

HSU Research VTF-15H MK2 ranking card

Pros: 15-inch ported driver delivers 121.8dB CEA-2010-A average from HSU Research’s long-running VTF series.

Cons: Ported enclosure prone to room modes at certain frequencies, mid-large 50 kg size, and $1,500 price point.

Notes: Price includes shipping

CEA-2010-A Average (40-80Hz)121.8 dB
Cabinet Colorblack, wood
CountryUnited States
Dimensions24.0"H x 18.0"W x 26.0"D (609.6 x 457.2 x 660.4 mm)
Drivers15" (381mm) driver
Enclosureported, front
Measurement SourceManufacturer
Output SPL at 15 Hz101.6 dB
Output SPL at 20 Hz108.4 dB
Output SPL at 25 Hz114.8 dB
Output SPL at 31.5 Hz119.4 dB
Output SPL at 40 Hz122.9 dB
Output SPL at 50 Hz122.5 dB
Output SPL at 63 Hz121.1 dB
Output SPL at 80 Hz120.5 dB
Warranty7/2(+3)
Weight110 lbs / 49.9 kg

Monoprice Monolith M-15 V2: $1,500 Amazon

Monoprice Monolith M-15 V2 ranking card

Notes: Product # 42851

CEA-2010-A Average (40-80Hz)120.0 dB
Cabinet Colorblack
CountryUnited States
Dimensions28.7"H x 17.7"W x 26.8"D (729.0 x 449.6 x 680.7 mm)
Drivers15" (381mm) driver
Enclosureported, front
Measurement SourceManufacturer
Output SPL at 12.5 Hz91.0 dB
Output SPL at 15 Hz106.3 dB
Output SPL at 20 Hz112.6 dB
Output SPL at 25 Hz116.6 dB
Output SPL at 31.5 Hz119.5 dB
Output SPL at 40 Hz120.9 dB
Output SPL at 50 Hz120.6 dB
Output SPL at 63 Hz120.0 dB
Output SPL at 80 Hz118.7 dB
Output SPL at 100 Hz120.1 dB
Output SPL at 125 Hz120.2 dB
Warranty5
Weight132.9 lbs / 60.3 kg
Check current price at Amazon ($1,500) →

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Product prices and availability were last checked August 9, 2026 at 6:57 AM UTC 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.