HSU Research VTF-3 MK5 HP vs Rythmik FV15HP

Last updated: August 9, 2026

Short answer: the Rythmik FV15HP for the higher ranking, the HSU Research VTF-3 MK5 HP for the lower price. The Rythmik FV15HP ranks #39 of 97 subwoofers at $1770. The HSU Research VTF-3 MK5 HP ranks #43 at $1099, $671 cheaper.

The case for the HSU Research VTF-3 MK5 HP: Ported cabinet delivers 121.4dB CEA-2010-A average, one of the best price-to-output ratios in this weight class. The catch: Ported design requires careful room placement, mid-size 39 kg cabinet, and mid-range output.

What the Rythmik FV15HP gets right: 15-inch ported driver reaches 122.0dB CEA-2010-A average, matching the output of subwoofers costing significantly more. The catch: Premium price ($1,770), ported design room gain dependency, and mid-to-large 52 kg footprint.

Buy the HSU Research VTF-3 MK5 HP if the price matters more than the ranking. Buy the Rythmik FV15HP if the ranking matters more than the price.

Specifications Side By Side

HSU Research VTF-3 MK5 HP Rythmik FV15HP
Price$1,099$1,770
Ranked#43 of 97 in Large Powered Home Subwoofers (Over 75 lbs)#39 of 97 in Large Powered Home Subwoofers (Over 75 lbs)
Enclosureported, frontported, front
Output SPL at 15 Hz100.8 dB105.1 dB
Output SPL at 20 Hz108.2 dB111.1 dB
Output SPL at 25 Hz113.4 dB116.1 dB
Output SPL at 31.5 Hz118.2 dB120.0 dB
Output SPL at 40 Hz121.9 dB122.5 dB
Output SPL at 50 Hz122.3 dB122.1 dB
Output SPL at 63 Hz121.1 dB121.8 dB
Output SPL at 80 Hz120.4 dB121.4 dB
CEA-2010-A Average (40-80Hz)121.4 dB122.0 dB
Dimensions25.0"H x 17.25"W x 24.0"D (635.0 x 438.1 x 609.6 mm)24.5"H x 18.25"W x 24.25"D (622.3 x 463.5 x 615.9 mm)
Weight85.1 lbs / 38.6 kg115.1 lbs / 52.2 kg
Warranty7/2(+3)5/3
Cabinet Colorblackblack, white
CountryUnited StatesUnited States
Measurement SourceManufacturerAudioholics
Drivers15" (381mm) driver15" (381mm) driver
Output SPL at 12.5 Hz-92.8 dB
Output SPL at 100 Hz-121.2 dB
Output SPL at 125 Hz-121.1 dB

The Two Speakers In Full

HSU Research VTF-3 MK5 HP: $1,099

HSU Research VTF-3 MK5 HP ranking card

Pros: Ported cabinet delivers 121.4dB CEA-2010-A average, one of the best price-to-output ratios in this weight class.

Cons: Ported design requires careful room placement, mid-size 39 kg cabinet, and mid-range output.

Notes: Price includes shipping

CEA-2010-A Average (40-80Hz)121.4 dB
Cabinet Colorblack
CountryUnited States
Dimensions25.0"H x 17.25"W x 24.0"D (635.0 x 438.1 x 609.6 mm)
Drivers15" (381mm) driver
Enclosureported, front
Measurement SourceManufacturer
Output SPL at 15 Hz100.8 dB
Output SPL at 20 Hz108.2 dB
Output SPL at 25 Hz113.4 dB
Output SPL at 31.5 Hz118.2 dB
Output SPL at 40 Hz121.9 dB
Output SPL at 50 Hz122.3 dB
Output SPL at 63 Hz121.1 dB
Output SPL at 80 Hz120.4 dB
Warranty7/2(+3)
Weight85.1 lbs / 38.6 kg

Rythmik FV15HP: $1,770

Rythmik FV15HP ranking card

Pros: 15-inch ported driver reaches 122.0dB CEA-2010-A average, matching the output of subwoofers costing significantly more.

Cons: Premium price ($1,770), ported design room gain dependency, and mid-to-large 52 kg footprint.

CEA-2010-A Average (40-80Hz)122.0 dB
Cabinet Colorblack, white
CountryUnited States
Dimensions24.5"H x 18.25"W x 24.25"D (622.3 x 463.5 x 615.9 mm)
Drivers15" (381mm) driver
Enclosureported, front
Measurement SourceAudioholics
Output SPL at 12.5 Hz92.8 dB
Output SPL at 15 Hz105.1 dB
Output SPL at 20 Hz111.1 dB
Output SPL at 25 Hz116.1 dB
Output SPL at 31.5 Hz120.0 dB
Output SPL at 40 Hz122.5 dB
Output SPL at 50 Hz122.1 dB
Output SPL at 63 Hz121.8 dB
Output SPL at 80 Hz121.4 dB
Output SPL at 100 Hz121.2 dB
Output SPL at 125 Hz121.1 dB
Warranty5/3
Weight115.1 lbs / 52.2 kg

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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.