Harbinger V2218S vs JTR Speakers Captivator 2400ULF

Last updated: August 15, 2026

Short answer: the Harbinger V2218S. It ranks #28 of 97 subwoofers by sound quality at $3495; the JTR Speakers Captivator 2400ULF ranks #31 and costs $3600, so there is not much of a tradeoff to weigh.

What the Harbinger V2218S offers: Its documented strengths make it a credible option in this class. Watch for: Its documented strengths make it a credible option in this class.

What the JTR Speakers Captivator 2400ULF offers: Its documented strengths make it a credible option in this class. Watch for: Its documented strengths make it a credible option in this class.

Buy the Harbinger V2218S. It ranks higher for sound quality than the JTR Speakers Captivator 2400ULF and costs less, so there is no real case for the other one.

Harbinger V2218S vs JTR Speakers Captivator 2400ULF

Specifications Side By Side

Harbinger V2218S JTR Speakers Captivator 2400ULF
Price$3495$3,600
Ranked#28 of 97 in Large Powered Home Subwoofers (Over 75 lbs)#31 of 97 in Large Powered Home Subwoofers (Over 75 lbs)
Enclosureported, frontported, front
Output SPL at 20 Hz75.7 dB115.6 dB
Output SPL at 25 Hz93.7 dB117.9 dB
Output SPL at 31.5 Hz112.0 dB121.8 dB
Output SPL at 40 Hz116.8 dB123.3 dB
Output SPL at 50 Hz123.0 dB123.3 dB
Output SPL at 63 Hz126.2 dB122.4 dB
Output SPL at 80 Hz125.7 dB121.6 dB
CEA-2010-A Average (40-80Hz)122.9 dB122.7 dB
Dimensions32.5"H x 26.5"W x 29.7"D (825.5 x 673.1 x 754.4 mm)41"H x 20.5"W x 22.5"D (1041.4 x 520.7 x 571.5 mm)
Weight89.9 lbs / 40.8 kg164.9 lbs / 74.8 kg
Cabinet Colorblackblack, custom
CountryUnited StatesUnited States
Measurement SourceBrent ButterworthData-bass
Drivers18" (457mm) driver18" (457mm) driver
Output SPL at 10 Hz-104.8 dB
Output SPL at 12.5 Hz-109.0 dB
Output SPL at 15 Hz-112.2 dB
Output SPL at 100 Hz-121.3 dB
Output SPL at 125 Hz-121.4 dB
Warranty-5/3

More useful head-to-heads from the same speaker class:

The Two Speakers In Full

Harbinger V2218S: $3495

Harbinger V2218S ranking card

Notes: Looks like “PA sub”

Full Harbinger V2218S review and specifications →

CEA-2010-A Average (40-80Hz)122.9 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 Hz75.7 dB
Output SPL at 25 Hz93.7 dB
Output SPL at 31.5 Hz112.0 dB
Output SPL at 40 Hz116.8 dB
Output SPL at 50 Hz123.0 dB
Output SPL at 63 Hz126.2 dB
Output SPL at 80 Hz125.7 dB
Weight89.9 lbs / 40.8 kg
Search eBay for Harbinger V2218S →Search used audio listings for Harbinger V2218S →

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JTR Speakers Captivator 2400ULF: $3,600

JTR Speakers Captivator 2400ULF ranking card

Full JTR Speakers Captivator 2400ULF review and specifications →

CEA-2010-A Average (40-80Hz)122.7 dB
Cabinet Colorblack, custom
CountryUnited States
Dimensions41"H x 20.5"W x 22.5"D (1041.4 x 520.7 x 571.5 mm)
Drivers18" (457mm) driver
Enclosureported, front
Measurement SourceData-bass
Output SPL at 10 Hz104.8 dB
Output SPL at 12.5 Hz109.0 dB
Output SPL at 15 Hz112.2 dB
Output SPL at 20 Hz115.6 dB
Output SPL at 25 Hz117.9 dB
Output SPL at 31.5 Hz121.8 dB
Output SPL at 40 Hz123.3 dB
Output SPL at 50 Hz123.3 dB
Output SPL at 63 Hz122.4 dB
Output SPL at 80 Hz121.6 dB
Output SPL at 100 Hz121.3 dB
Output SPL at 125 Hz121.4 dB
Warranty5/3
Weight164.9 lbs / 74.8 kg
Search eBay for JTR Speakers Captivator 2400ULF →Search used audio listings for JTR Speakers Captivator 2400ULF →

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