Rythmik FV15HP vs Harbinger V2218S

Last updated: September 16, 2026

Short answer: the Harbinger V2218S for better sound quality, the Rythmik FV15HP for the lower price. The Harbinger V2218S ranks #15 of 110 subwoofers at $3495. The Rythmik FV15HP ranks #48 at $2127, $1368 cheaper.

Rythmik FV15HP vs Harbinger V2218S

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

What the Harbinger V2218S offers: Independent CEA-2010 testing records 81.7 dB at 20 Hz and 128.9 dB through 40-80 Hz. The ported, front enclosure with 18” (457mm) driver delivers formidable upper-bass output for movie effects and music. Watch for: Deep-bass output is more limited than the strong 40-80 Hz result suggests, so it is not the right choice when the lowest movie effects are the priority. The 825.5H x 673.1W x 754.4D mm cabinet and 40.8 kg mass still require deliberate placement and calibration.

Buy the Rythmik FV15HP if the price matters more than sound quality. Buy the Harbinger V2218S if sound quality matters more than the price.

Looking for alternatives? See the complete Subwoofers rankings.

Buy the Rythmik FV15HP at Rythmik Audio ($2,127) →

Specifications Side By Side

Rythmik FV15HP Harbinger V2218S
Price$1,770$3495
Ranked#48 of 110 in Large Home Subwoofers (Over 75 lbs)#15 of 110 in Large Home Subwoofers (Over 75 lbs)
Enclosureported, frontported, front
Output SPL at 12.5 Hz92.8 dB-
Output SPL at 15 Hz105.1 dB-
Output SPL at 20 Hz111.1 dB81.7 dB
Output SPL at 25 Hz116.1 dB99.7 dB
Output SPL at 31.5 Hz120.0 dB118.0 dB
Output SPL at 40 Hz122.5 dB122.8 dB
Output SPL at 50 Hz122.1 dB129.0 dB
Output SPL at 63 Hz121.8 dB132.2 dB
Output SPL at 80 Hz121.4 dB131.7 dB
Output SPL at 100 Hz121.2 dB-
Output SPL at 125 Hz121.1 dB-
CEA-2010-A Average (40-80Hz)122.0 dB128.9 dB
Dimensions24.5"H x 18.2"W x 24.2"D (622.3 x 463.5 x 615.9 mm)32.5"H x 26.5"W x 29.7"D (825.5 x 673.1 x 754.4 mm)
Weight115.1 lbs (52.2 kg)89.9 lbs (40.8 kg)
Warranty5/3-
Cabinet Colorblack, whiteblack
CountryUnited StatesUnited States
Measurement SourceAudioholicsBrent Butterworth
Drivers15" (381mm) driver18" (457mm) driver
Buy the Rythmik FV15HP at Rythmik Audio ($2,127) →

More worthwhile head-to-heads for Harbinger V2218S:

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 FV15HP: $1,770 Rythmik Audio eBay

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.

Full Rythmik FV15HP review and specifications →

CEA-2010-A Average (40-80Hz)122.0 dB
Cabinet Colorblack, white
CountryUnited States
Dimensions24.5"H x 18.2"W x 24.2"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)
Check current price at Rythmik Audio ($2,127) →Search eBay for Rythmik FV15HP →

Harbinger V2218S: $3495 eBay

Harbinger V2218S ranking card

Pros: Independent CEA-2010 testing records 81.7 dB at 20 Hz and 128.9 dB through 40-80 Hz. The ported, front enclosure with 18” (457mm) driver delivers formidable upper-bass output for movie effects and music.

Cons: Deep-bass output is more limited than the strong 40-80 Hz result suggests, so it is not the right choice when the lowest movie effects are the priority. The 825.5H x 673.1W x 754.4D mm cabinet and 40.8 kg mass still require deliberate placement and calibration.

Notes: Looks like “PA sub”

Full Harbinger V2218S review and specifications →

CEA-2010-A Average (40-80Hz)128.9 dB
Cabinet Colorblack
CountryUnited States
Dimensions32.5"H x 26.5"W x 29.7"D (825.5 x 673.1 x 754.4 mm)
Drivers18" (457mm) driver
Enclosureported, front
Measurement SourceBrent Butterworth
Output SPL at 20 Hz81.7 dB
Output SPL at 25 Hz99.7 dB
Output SPL at 31.5 Hz118.0 dB
Output SPL at 40 Hz122.8 dB
Output SPL at 50 Hz129.0 dB
Output SPL at 63 Hz132.2 dB
Output SPL at 80 Hz131.7 dB
Weight89.9 lbs (40.8 kg)
Search eBay for Harbinger V2218S →