Short answer: the JTR Speakers Captivator 1400 for better sound quality, the Rythmik FV15HP for the lower price. The JTR Speakers Captivator 1400 ranks #28 of 110 subwoofers at $2495. The Rythmik FV15HP ranks #48 at $2127, $368 cheaper.
What the JTR Speakers Captivator 1400 offers: Independent CEA-2010 testing records 116.1 dB at 20 Hz and 125.2 dB through 40-80 Hz. The ported, front enclosure with 18” (457mm) driver has the headroom for demanding film bass in a large room. Watch for: The 508.0H x 762.0W x 571.5D mm cabinet and 64.4 kg mass make this a serious placement and moving commitment. Ported output does not solve room modes, so careful placement and calibration remain essential.
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.
Buy the JTR Speakers Captivator 1400 if sound quality matters more than the price. Buy the Rythmik FV15HP if the price matters more than sound quality.
Looking for alternatives? See the complete Subwoofers rankings.
Specifications Side By Side
| JTR Speakers Captivator 1400 | Rythmik FV15HP | |
|---|---|---|
| Price | $2495 | $1,770 |
| Ranked | #28 of 110 in Large Home Subwoofers (Over 75 lbs) | #48 of 110 in Large Home Subwoofers (Over 75 lbs) |
| Enclosure | ported, front | ported, front |
| Output SPL at 12.5 Hz | 99.3 dB | 92.8 dB |
| Output SPL at 15 Hz | 111.9 dB | 105.1 dB |
| Output SPL at 20 Hz | 116.1 dB | 111.1 dB |
| Output SPL at 25 Hz | 119.2 dB | 116.1 dB |
| Output SPL at 31.5 Hz | 121.7 dB | 120.0 dB |
| Output SPL at 40 Hz | 124.8 dB | 122.5 dB |
| Output SPL at 50 Hz | 126.4 dB | 122.1 dB |
| Output SPL at 63 Hz | 125.4 dB | 121.8 dB |
| Output SPL at 80 Hz | 124.0 dB | 121.4 dB |
| Output SPL at 100 Hz | 126.0 dB | 121.2 dB |
| Output SPL at 125 Hz | 124.7 dB | 121.1 dB |
| CEA-2010-A Average (40-80Hz) | 125.2 dB | 122.0 dB |
| Dimensions | 20"H x 30"W x 22.5"D (508.0 x 762.0 x 571.5 mm) | 24.5"H x 18.2"W x 24.2"D (622.3 x 463.5 x 615.9 mm) |
| Weight | 142 lbs (64.4 kg) | 115.1 lbs (52.2 kg) |
| Warranty | 5/3 | 5/3 |
| Country | United States | United States |
| Measurement Source | Data-bass | Audioholics |
| Drivers | 18" (457mm) driver | 15" (381mm) driver |
| Cabinet Color | - | black, white |
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- JTR Speakers Captivator 1400 vs Funk Audio Ultra 24.0
- JTR Speakers Captivator 1400 vs JTR Speakers Growler (2015)
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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
JTR Speakers Captivator 1400: $2495 eBay
Pros: Independent CEA-2010 testing records 116.1 dB at 20 Hz and 125.2 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 508.0H x 762.0W x 571.5D mm cabinet and 64.4 kg mass make this a serious placement and moving commitment. Ported output does not solve room modes, so careful placement and calibration remain essential.
Full JTR Speakers Captivator 1400 review and specifications →
| CEA-2010-A Average (40-80Hz) | 125.2 dB |
|---|---|
| Country | United States |
| Dimensions | 20"H x 30"W x 22.5"D (508.0 x 762.0 x 571.5 mm) |
| Drivers | 18" (457mm) driver |
| Enclosure | ported, front |
| Measurement Source | Data-bass |
| Output SPL at 12.5 Hz | 99.3 dB |
| Output SPL at 15 Hz | 111.9 dB |
| Output SPL at 20 Hz | 116.1 dB |
| Output SPL at 25 Hz | 119.2 dB |
| Output SPL at 31.5 Hz | 121.7 dB |
| Output SPL at 40 Hz | 124.8 dB |
| Output SPL at 50 Hz | 126.4 dB |
| Output SPL at 63 Hz | 125.4 dB |
| Output SPL at 80 Hz | 124.0 dB |
| Output SPL at 100 Hz | 126.0 dB |
| Output SPL at 125 Hz | 124.7 dB |
| Warranty | 5/3 |
| Weight | 142 lbs (64.4 kg) |
- 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 1400 vs Power Sound Audio (PSA) S3600i
- JTR Speakers Captivator 1400 vs Monoprice Monolith M-215
- JTR Speakers Captivator 1400 vs Rythmik FV25HP
- JTR Speakers Captivator 1400 vs Monoprice Monolith 16 THX Ultra
- JTR Speakers Captivator 1400 vs Funk Audio Classic 18.0
- JTR Speakers Captivator 1400 vs Harbinger V2218S
- JTR Speakers Captivator 1400 vs JTR Speakers Growler (2015)
- JTR Speakers Captivator 1400 vs Funk Audio Ultra 24.0
- See all 16 comparisons
Rythmik FV15HP: $1,770 Rythmik Audio eBay
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 Color | black, white |
| Country | United States |
| Dimensions | 24.5"H x 18.2"W x 24.2"D (622.3 x 463.5 x 615.9 mm) |
| Drivers | 15" (381mm) driver |
| Enclosure | ported, front |
| Measurement Source | Audioholics |
| Output SPL at 12.5 Hz | 92.8 dB |
| Output SPL at 15 Hz | 105.1 dB |
| Output SPL at 20 Hz | 111.1 dB |
| Output SPL at 25 Hz | 116.1 dB |
| Output SPL at 31.5 Hz | 120.0 dB |
| Output SPL at 40 Hz | 122.5 dB |
| Output SPL at 50 Hz | 122.1 dB |
| Output SPL at 63 Hz | 121.8 dB |
| Output SPL at 80 Hz | 121.4 dB |
| Output SPL at 100 Hz | 121.2 dB |
| Output SPL at 125 Hz | 121.1 dB |
| Warranty | 5/3 |
| Weight | 115.1 lbs (52.2 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Independently measured by Audioholics; the published figures above come from this ASR subwoofer measurement thread.
- Head-to-Head Comparisons
- Rythmik FV15HP vs JTR Speakers Captivator RS1
- Rythmik FV15HP vs HSU Research VTF-15H MK2
- Rythmik FV15HP vs HSU Research VTF-3 MK5 HP
- Rythmik FV15HP vs SVS PB-4000
- Rythmik FV15HP vs Monoprice Monolith M-15 V2
- Rythmik FV15HP vs Rythmik F18
- Rythmik FV15HP vs Monoprice Monolith M15-S
- Rythmik FV15HP vs Monoprice Monolith M-215
- See all 24 comparisons