Short answer: the JTR Speakers Captivator S2 if sound quality matters most, the HSU Research VTF-3 MK5 HP if price matters most. The JTR Speakers Captivator S2 ranks #9 of 110 subwoofers, rated 4.5/5, at $3995. The HSU Research VTF-3 MK5 HP ranks #52, rated 4.2/5, at $1049, $2946 cheaper.

The case for the HSU Research VTF-3 MK5 HP: Ported cabinet delivers 121.4dB CEA-2010-A average, one of the best price-to-output ratios in this weight class. Set against that: Ported design requires careful room placement, mid-size 39 kg (86 lbs) cabinet, and mid-range output.
Buy the HSU Research VTF-3 MK5 HP when the price outweighs sound quality for you, and the JTR Speakers Captivator S2 when sound quality outweighs the price instead.
Looking for alternatives? See the complete Subwoofers rankings.
Specifications Side By Side
| HSU Research VTF-3 MK5 HP | JTR Speakers Captivator S2 | |
|---|---|---|
| Price | $1,099 | $3995 |
| Ranked | #52 of 110 in Large Home Subwoofers (Over 75 lbs) | #9 of 110 in Large Home Subwoofers (Over 75 lbs) |
| Enclosure | ported, front | sealed |
| Output SPL at 15 Hz | 100.8 dB | 108.7 dB |
| Output SPL at 20 Hz | 108.2 dB | 115.1 dB |
| Output SPL at 25 Hz | 113.4 dB | 119.7 dB |
| Output SPL at 31.5 Hz | 118.2 dB | 124.8 dB |
| Output SPL at 40 Hz | 121.9 dB | 129.3 dB |
| Output SPL at 50 Hz | 122.3 dB | 130.3 dB |
| Output SPL at 63 Hz | 121.1 dB | 129.4 dB |
| Output SPL at 80 Hz | 120.4 dB | 128.5 dB |
| CEA-2010-A Average (40-80Hz) | 121.4 dB | 129.4 dB |
| Dimensions | 25"H x 17.2"W x 24"D (635.0 x 438.1 x 609.6 mm) | 40"H x 21"W x 18"D (1016.0 x 533.4 x 457.2 mm) |
| Weight | 85.1 lbs (38.6 kg) | 220 lbs (99.8 kg) |
| Warranty | 7/2(+3) | 5/3 |
| Cabinet Color | black | - |
| Country | United States | United States |
| Measurement Source | Manufacturer | Data-bass |
| Drivers | 15" (381mm) driver | 2x 18" (457mm) drivers |
| Output SPL at 10 Hz | - | 100.3 dB |
| Output SPL at 12.5 Hz | - | 103.3 dB |
| Output SPL at 100 Hz | - | 128.1 dB |
| Output SPL at 125 Hz | - | 128.0 dB |
| Inputs | - | XLR (balanced), RCA |
| XLR Input | - | Yes |
| RCA Input | - | Yes |
| TRS Input | - | No |
| Optical Input | - | No |
| Coaxial Input | - | No |
| USB Input | - | No |
| HDMI Input | - | No |
| AES Input | - | No |
| Aux Input | - | No |
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Prices on this page were last checked September 23, 2026 at 11:24 PM 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
HSU Research VTF-3 MK5 HP: $1,099 HSU Research eBay
Pros: Ported cabinet delivers 121.4dB CEA-2010-A average, one of the best price-to-output ratios in this weight class.
Cons: Ported design requires careful room placement, mid-size 39 kg cabinet, and mid-range output.
Notes: Price includes shipping
Full HSU Research VTF-3 MK5 HP review and specifications →
| CEA-2010-A Average (40-80Hz) | 121.4 dB |
|---|---|
| Cabinet Color | black |
| Country | United States |
| Dimensions | 25"H x 17.2"W x 24"D (635.0 x 438.1 x 609.6 mm) |
| Drivers | 15" (381mm) driver |
| Enclosure | ported, front |
| Measurement Source | Manufacturer |
| Output SPL at 15 Hz | 100.8 dB |
| Output SPL at 20 Hz | 108.2 dB |
| Output SPL at 25 Hz | 113.4 dB |
| Output SPL at 31.5 Hz | 118.2 dB |
| Output SPL at 40 Hz | 121.9 dB |
| Output SPL at 50 Hz | 122.3 dB |
| Output SPL at 63 Hz | 121.1 dB |
| Output SPL at 80 Hz | 120.4 dB |
| Warranty | 7/2(+3) |
| Weight | 85.1 lbs (38.6 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- These figures are manufacturer-specified rather than independently measured.
- Head-to-Head Comparisons
- HSU Research VTF-3 MK5 HP vs Rythmik FV18
- HSU Research VTF-3 MK5 HP vs SVS PB-3000
- HSU Research VTF-3 MK5 HP vs HSU Research VTF-15H MK2
- HSU Research VTF-3 MK5 HP vs Harbottle Audio C24 L1
- HSU Research VTF-3 MK5 HP vs JTR Speakers Captivator RS1
- HSU Research VTF-3 MK5 HP vs Rythmik FV15HP
- HSU Research VTF-3 MK5 HP vs Monoprice Monolith 13 THX Ultra
- HSU Research VTF-3 MK5 HP vs Arendal 1723 Subwoofer 2V
- See all 54 comparisons
JTR Speakers Captivator S2: $3995 eBay
Pros: Independent CEA-2010 testing records 115.1 dB at 20 Hz and 129.4 dB through 40-80 Hz. The sealed enclosure with 2x 18” (457mm) drivers has the headroom for demanding film bass in a large room.
Cons: The 1016.0H x 533.4W x 457.2D mm cabinet and 99.8 kg mass make this a serious placement and moving commitment. A sealed cabinet still needs careful placement and calibration to avoid room-mode peaks.
Notes: Replaced by “RS2”
Full JTR Speakers Captivator S2 review and specifications →
| AES Input | No |
|---|---|
| Aux Input | No |
| CEA-2010-A Average (40-80Hz) | 129.4 dB |
| Coaxial Input | No |
| Country | United States |
| Dimensions | 40"H x 21"W x 18"D (1016.0 x 533.4 x 457.2 mm) |
| Drivers | 2x 18" (457mm) drivers |
| Enclosure | sealed |
| HDMI Input | No |
| Inputs | XLR (balanced), RCA |
| Measurement Source | Data-bass |
| Optical Input | No |
| Output SPL at 10 Hz | 100.3 dB |
| Output SPL at 12.5 Hz | 103.3 dB |
| Output SPL at 15 Hz | 108.7 dB |
| Output SPL at 20 Hz | 115.1 dB |
| Output SPL at 25 Hz | 119.7 dB |
| Output SPL at 31.5 Hz | 124.8 dB |
| Output SPL at 40 Hz | 129.3 dB |
| Output SPL at 50 Hz | 130.3 dB |
| Output SPL at 63 Hz | 129.4 dB |
| Output SPL at 80 Hz | 128.5 dB |
| Output SPL at 100 Hz | 128.1 dB |
| Output SPL at 125 Hz | 128.0 dB |
| RCA Input | Yes |
| TRS Input | No |
| USB Input | No |
| Warranty | 5/3 |
| Weight | 220 lbs (99.8 kg) |
| XLR Input | Yes |
- Links
- Reviews, Comparisons and Sound Samples
- Independently measured by Data-bass; the published figures above come from this ASR subwoofer measurement thread.
- Head-to-Head Comparisons
- JTR Speakers Captivator S2 vs Power Sound Audio (PSA) T18
- JTR Speakers Captivator S2 vs Power Sound Audio (PSA) V3600I
- JTR Speakers Captivator S2 vs Funk Audio Ultra 24.0
- JTR Speakers Captivator S2 vs JTR Speakers Captivator 215PRO
- JTR Speakers Captivator S2 vs JTR Speakers Captivator 4000ULF
- JTR Speakers Captivator S2 vs Funk Audio Custom 21.0
- JTR Speakers Captivator S2 vs Power Sound Audio (PSA) TRIAX
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