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

Last updated: September 17, 2026

Short answer: the HSU Research VTF-15H MK2, if you are buying new. The Monoprice Monolith M-15 V2 measures as well as it (#64 vs #50 of 110 subwoofers, 4.2/5 vs 4.2/5) but is discontinued, so only consider it used; the HSU Research VTF-15H MK2 is still sold new at $1499.

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

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 (110.2 lbs) size, and $1,500 price point.

Buy the HSU Research VTF-15H MK2 new; the Monoprice Monolith M-15 V2 is no longer sold new, so it only makes sense as a used find.

Still deciding? The full Subwoofers rankings cover every ranked option.

Specifications Side By Side

HSU Research VTF-15H MK2 Monoprice Monolith M-15 V2
Price$1,499$1,500 Discontinued
Ranked#50 of 110 in Large Home Subwoofers (Over 75 lbs)#64 of 110 in Large 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"H x 18"W x 26"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 kg)132.9 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
Discontinued-Yes
Inputs-XLR, 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

More top alternatives to HSU Research VTF-15H MK2:

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 VTF-15H MK2: $1,499 eBay

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 $1499 price point.

Notes: Price includes shipping

Full HSU Research VTF-15H MK2 review and specifications →

CEA-2010-A Average (40-80Hz)121.8 dB
Cabinet Colorblack, wood
CountryUnited States
Dimensions24"H x 18"W x 26"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)
Search eBay for HSU Research VTF-15H MK2 →

Monoprice Monolith M-15 V2: $1,500 Discontinued eBay

Monoprice Monolith M-15 V2 ranking card

Pros: Published CEA-2010 specifications list 112.6 dB at 20 Hz and 120.0 dB through 40-80 Hz. Its front-ported 15-inch design has substantial deep-bass and midbass headroom for cinema playback.

Cons: Discontinued and no longer sold new. At 60.3 kg and 729.0H x 449.6W x 680.7D mm, it needs committed floor space and careful room integration. Discontinued.

Notes: Product # 42851

Full Monoprice Monolith M-15 V2 review and specifications →

AES InputNo
Aux InputNo
CEA-2010-A Average (40-80Hz)120.0 dB
Cabinet Colorblack
Coaxial InputNo
CountryUnited States
Dimensions28.7"H x 17.7"W x 26.8"D (729.0 x 449.6 x 680.7 mm)
DiscontinuedYes
Drivers15" (381mm) driver
Enclosureported, front
HDMI InputNo
InputsXLR, RCA
Measurement SourceManufacturer
Optical InputNo
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
RCA InputYes
TRS InputNo
USB InputNo
Warranty5
Weight132.9 lbs (60.3 kg)
XLR InputYes
Search eBay for Monoprice Monolith M-15 V2 →