JTR Speakers Captivator RS1 vs Rythmik FV15HP

Last updated: October 21, 2026

Short answer: the Rythmik FV15HP. Both are rated 4.2/5 for sound quality (#55 and #56 of 143 subwoofers), and the Rythmik FV15HP costs $2,127 against $3,300 for the JTR Speakers Captivator RS1, with sound quality a draw, the lower price decides it.

Check Rythmik FV15HP price at Rythmik Audio ($2,127) →Check JTR Speakers Captivator RS1 price at JTR Speakers ($3,300) →

JTR Speakers Captivator RS1 vs Rythmik FV15HP

The case for the JTR Speakers Captivator RS1: A compact sealed 18 inch subwoofer with strong deep bass for home theater and both balanced and RCA inputs. The tradeoff: The 533.4H x 533.4W x 457.2D mm cabinet and 117.1 lbs (53.1 kg) mass make this a serious placement and moving commitment.

Why pick the Rythmik FV15HP: A 15 inch ported subwoofer with output matching pricier rivals, plus balanced and RCA inputs for flexible setups. The tradeoff: Premium price ($2127), ported design room gain dependency, and mid-to-large 114.6 lbs (52 kg) footprint.

Buy the Rythmik FV15HP. Both are rated the same for sound quality, and it costs $1,173 less than the JTR Speakers Captivator RS1.

Looking for alternatives? See the complete Subwoofers rankings.

JTR Speakers Captivator RS1
#56 in Large Home Subwoofers (Over 75 lbs)4.2Full review

A compact sealed 18 inch subwoofer with strong deep bass for home theater and both balanced and RCA inputs.

Driver: 18"Enclosure: SealedOutput 40-80 Hz: 121.8 dBWeight: 117.1 lbs
JTR Speakers $3,300 eBay
$3,300
Rythmik FV15HP
#55 in Large Home Subwoofers (Over 75 lbs)4.2Full review

A 15 inch ported subwoofer with output matching pricier rivals, plus balanced and RCA inputs for flexible setups.

Driver: 15"Enclosure: PortedOutput 40-80 Hz: 122 dBWeight: 115.1 lbs
Rythmik Audio $2,127 eBay
$2,127

Prices on this page were last checked October 23, 2026 at 8:27 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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Specifications Side By Side

JTR Speakers Captivator RS1 Rythmik FV15HP
Price$3,300$2,127
Ranked#56 of 143 in Large Home Subwoofers (Over 75 lbs)#55 of 143 in Large Home Subwoofers (Over 75 lbs)
Enclosuresealedported, front
Output SPL at 10 Hz96.1 dB-
Output SPL at 12.5 Hz100.1 dB92.8 dB
Output SPL at 15 Hz105.4 dB105.1 dB
Output SPL at 20 Hz111.1 dB111.1 dB
Output SPL at 25 Hz115.5 dB116.1 dB
Output SPL at 31.5 Hz119.6 dB120.0 dB
Output SPL at 40 Hz121.3 dB122.5 dB
Output SPL at 50 Hz122.0 dB122.1 dB
Output SPL at 63 Hz122.1 dB121.8 dB
Output SPL at 80 Hz121.9 dB121.4 dB
Output SPL at 100 Hz121.9 dB121.2 dB
Output SPL at 125 Hz121.9 dB121.1 dB
CEA-2010-A Average (40-80Hz)121.8 dB122.0 dB
Dimensions21”H x 21”W x 18”D (533.4 x 533.4 x 457.2 mm)24.5”H x 18.2”W x 24.2”D (622.3 x 463.5 x 615.9 mm)
Weight117.1 lbs (53.1 kg)115.1 lbs (52.2 kg)
Warranty5/35/3
Cabinet Colorblackblack, white
CountryUnited StatesUnited States
Measurement SourceAudioholicsAudioholics
Drivers18” (457mm) driver15” (381mm) driver
InputsXLR, RCAXLR (2), RCA (line/LFE)
XLR InputYesYes
RCA InputYesYes
TRS InputNoNo
Optical InputNoNo
Coaxial InputNoNo
USB InputNoNo
HDMI InputNoNo
AES InputNoNo
Aux InputNoNo
Check Rythmik FV15HP price at Rythmik Audio ($2,127) →Check JTR Speakers Captivator RS1 price at JTR Speakers ($3,300) →

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