Rythmik FV25HP vs Rythmik F18

Last updated: September 16, 2026

Short answer: the Rythmik FV25HP if sound quality matters most, the Rythmik F18 if price matters most. The Rythmik FV25HP ranks #22 of 110 subwoofers at $2499. The Rythmik F18 ranks #69 at $2344, $155 cheaper.

Rythmik FV25HP vs Rythmik F18

What the Rythmik FV25HP offers: Independent CEA-2010 testing records 116.6 dB at 20 Hz and 126.2 dB through 40-80 Hz. The ported, front enclosure with 2x 15” (381mm) driver has the headroom for demanding film bass in a large room. Watch for: The 1054.1H x 533.4W x 558.8D mm cabinet and 95.3 kg mass make this a serious placement and moving commitment. Ported output does not solve room modes, so careful placement and calibration remain essential.

What the Rythmik F18 offers: Independent CEA-2010 testing records 106.2 dB at 20 Hz and 119.5 dB through 40-80 Hz. The sealed enclosure with 18” (457mm) driver has the headroom for demanding film bass in a large room. Watch for: The 520.7H x 520.7W x 533.4D mm cabinet and 52.2 kg mass make this a serious placement and moving commitment. A sealed cabinet still needs careful placement and calibration to avoid room-mode peaks.

Buy the Rythmik FV25HP when sound quality outweighs the price for you, and the Rythmik F18 when the price outweighs sound quality instead.

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

Buy the Rythmik F18 at Rythmik Audio ($2,344) →

Specifications Side By Side

Rythmik FV25HP Rythmik F18
Price$2499$1,850
Ranked#22 of 110 in Large Home Subwoofers (Over 75 lbs)#69 of 110 in Large Home Subwoofers (Over 75 lbs)
Enclosureported, frontsealed
Output SPL at 10 Hz99.7 dB93.7 dB
Output SPL at 12.5 Hz108.4 dB97.4 dB
Output SPL at 15 Hz113.2 dB102.0 dB
Output SPL at 20 Hz116.6 dB106.2 dB
Output SPL at 25 Hz119.1 dB110.9 dB
Output SPL at 31.5 Hz122.4 dB114.3 dB
Output SPL at 40 Hz124.7 dB117.1 dB
Output SPL at 50 Hz126.1 dB119.1 dB
Output SPL at 63 Hz126.7 dB120.5 dB
Output SPL at 80 Hz127.3 dB121.2 dB
Output SPL at 100 Hz127.9 dB121.4 dB
Output SPL at 125 Hz127.8 dB121.4 dB
CEA-2010-A Average (40-80Hz)126.2 dB119.5 dB
Dimensions41.5"H x 21"W x 22"D (1054.1 x 533.4 x 558.8 mm)20.5"H x 20.5"W x 21"D (520.7 x 520.7 x 533.4 mm)
Weight210.1 lbs (95.3 kg)115.1 lbs (52.2 kg)
Warranty5/35/3
Cabinet Colorblackblack
CountryUnited StatesUnited States
Measurement SourceData-bassData-bass
Drivers2x 15" (381mm) driver18" (457mm) driver
Buy the Rythmik F18 at Rythmik Audio ($2,344) →

How Rythmik FV25HP compares with other leading options:

Prices on this page were last checked September 16, 2026 at 12:41 AM 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

Rythmik FV25HP: $2499 eBay

Rythmik FV25HP ranking card

Pros: Independent CEA-2010 testing records 116.6 dB at 20 Hz and 126.2 dB through 40-80 Hz. The ported, front enclosure with 2x 15” (381mm) driver has the headroom for demanding film bass in a large room.

Cons: The 1054.1H x 533.4W x 558.8D mm cabinet and 95.3 kg mass make this a serious placement and moving commitment. Ported output does not solve room modes, so careful placement and calibration remain essential.

Full Rythmik FV25HP review and specifications →

CEA-2010-A Average (40-80Hz)126.2 dB
Cabinet Colorblack
CountryUnited States
Dimensions41.5"H x 21"W x 22"D (1054.1 x 533.4 x 558.8 mm)
Drivers2x 15" (381mm) driver
Enclosureported, front
Measurement SourceData-bass
Output SPL at 10 Hz99.7 dB
Output SPL at 12.5 Hz108.4 dB
Output SPL at 15 Hz113.2 dB
Output SPL at 20 Hz116.6 dB
Output SPL at 25 Hz119.1 dB
Output SPL at 31.5 Hz122.4 dB
Output SPL at 40 Hz124.7 dB
Output SPL at 50 Hz126.1 dB
Output SPL at 63 Hz126.7 dB
Output SPL at 80 Hz127.3 dB
Output SPL at 100 Hz127.9 dB
Output SPL at 125 Hz127.8 dB
Warranty5/3
Weight210.1 lbs (95.3 kg)
Search eBay for Rythmik FV25HP →

Rythmik F18: $1,850 Rythmik Audio eBay

Rythmik F18 ranking card

Pros: Independent CEA-2010 testing records 106.2 dB at 20 Hz and 119.5 dB through 40-80 Hz. The sealed enclosure with 18” (457mm) driver has the headroom for demanding film bass in a large room.

Cons: The 520.7H x 520.7W x 533.4D mm cabinet and 52.2 kg mass make this a serious placement and moving commitment. A sealed cabinet still needs careful placement and calibration to avoid room-mode peaks.

Full Rythmik F18 review and specifications →

CEA-2010-A Average (40-80Hz)119.5 dB
Cabinet Colorblack
CountryUnited States
Dimensions20.5"H x 20.5"W x 21"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)
Check current price at Rythmik Audio ($2,344) →Search eBay for Rythmik F18 →