Rythmik F18 vs Rythmik FV15HP

Last updated: August 9, 2026

Short answer: the Rythmik FV15HP. It ranks #39 of 97 subwoofers at $1770; the Rythmik F18 ranks #60 and costs $1850, so there is not much of a tradeoff to weigh.

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

Buy the Rythmik F18 if the price matters more than the ranking. Buy the Rythmik FV15HP if the ranking matters more than the price.

Specifications Side By Side

Rythmik F18 Rythmik FV15HP
Price$1,850$1,770
Ranked#60 of 97 in Large Powered Home Subwoofers (Over 75 lbs)#39 of 97 in Large Powered Home Subwoofers (Over 75 lbs)
Enclosuresealedported, front
Output SPL at 10 Hz93.7 dB-
Output SPL at 12.5 Hz97.4 dB92.8 dB
Output SPL at 15 Hz102.0 dB105.1 dB
Output SPL at 20 Hz106.2 dB111.1 dB
Output SPL at 25 Hz110.9 dB116.1 dB
Output SPL at 31.5 Hz114.3 dB120.0 dB
Output SPL at 40 Hz117.1 dB122.5 dB
Output SPL at 50 Hz119.1 dB122.1 dB
Output SPL at 63 Hz120.5 dB121.8 dB
Output SPL at 80 Hz121.2 dB121.4 dB
Output SPL at 100 Hz121.4 dB121.2 dB
Output SPL at 125 Hz121.4 dB121.1 dB
CEA-2010-A Average (40-80Hz)119.5 dB122.0 dB
Dimensions20.5"H x 20.5"W x 21.0"D (520.7 x 520.7 x 533.4 mm)24.5"H x 18.25"W x 24.25"D (622.3 x 463.5 x 615.9 mm)
Weight115.1 lbs / 52.2 kg115.1 lbs / 52.2 kg
Warranty5/35/3
Cabinet Colorblackblack, white
CountryUnited StatesUnited States
Measurement SourceData-bassAudioholics
Drivers18" (457mm) driver15" (381mm) driver

The Two Speakers In Full

Rythmik F18: $1,850

Rythmik F18 ranking card

CEA-2010-A Average (40-80Hz)119.5 dB
Cabinet Colorblack
CountryUnited States
Dimensions20.5"H x 20.5"W x 21.0"D (520.7 x 520.7 x 533.4 mm)
Drivers18" (457mm) driver
Enclosuresealed
Measurement SourceData-bass
Output SPL at 10 Hz93.7 dB
Output SPL at 12.5 Hz97.4 dB
Output SPL at 15 Hz102.0 dB
Output SPL at 20 Hz106.2 dB
Output SPL at 25 Hz110.9 dB
Output SPL at 31.5 Hz114.3 dB
Output SPL at 40 Hz117.1 dB
Output SPL at 50 Hz119.1 dB
Output SPL at 63 Hz120.5 dB
Output SPL at 80 Hz121.2 dB
Output SPL at 100 Hz121.4 dB
Output SPL at 125 Hz121.4 dB
Warranty5/3
Weight115.1 lbs / 52.2 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.