Rythmik FV18 Review: Rated 4.2/5

Last updated: October 21, 2026

The Rythmik FV18 is rated 4.2/5 for sound quality, #60 of 143 Large Home Subwoofers (Over 75 lbs). See all Subwoofers rankings for every top pick.

Prices on this page were last checked October 28, 2026 at 1:06 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.

As an eBay Partner, we may be compensated if you make a purchase.

Brand: Rythmik

#60 Rythmik FV18: $2,670 Rythmik Audio $2,670 eBay

Same family: the Rythmik FV15HP (smaller subwoofer, ranked higher, rated 4.2/5) and the Rythmik FV25HP (larger subwoofer, ranked higher, rated 4.4/5).

Pros: An 18 inch ported subwoofer with deep, powerful bass for large rooms and flexible balanced and RCA inputs. Independent CEA-2010 testing records 114.3 dB at 20 Hz and 121.3 dB through 40-80 Hz. The ported, front enclosure with 18” (457mm) driver has the headroom for demanding film bass in a large room.

Cons: The 838.2H x 533.4W x 558.8D mm cabinet and 72.6 kg mass make this a serious placement and moving commitment. Ported output does not solve room modes, so careful placement and calibration remain essential.

ReleasedNov 2017 (8 years ago)
AES InputNo
Aux InputNo
CEA-2010-A Average (40-80Hz)121.3 dB
Cabinet Colorblack
Coaxial InputNo
CountryUnited States
Dimensions33”H x 21”W x 22”D (838.2 x 533.4 x 558.8 mm)
Drivers18” (457mm) driver
Enclosureported, front
HDMI InputNo
InputsXLR (2), RCA (line/LFE)
Measurement SourceData-bass
Optical InputNo
Output SPL at 12.5 Hz102.0 dB
Output SPL at 15 Hz109.5 dB
Output SPL at 20 Hz114.3 dB
Output SPL at 25 Hz117.6 dB
Output SPL at 31.5 Hz119.2 dB
Output SPL at 40 Hz120.4 dB
Output SPL at 50 Hz121.3 dB
Output SPL at 63 Hz121.7 dB
Output SPL at 80 Hz121.9 dB
Output SPL at 100 Hz122.4 dB
Output SPL at 125 Hz121.9 dB
RCA InputYes
TRS InputNo
USB InputNo
Warranty5/3
Weight160.1 lbs (72.6 kg)
XLR InputYes

Head-to-Head Comparisons

6 comparisons

More Rythmik speakers →