Short answer: both are discontinued, so this only matters if you are buying used. Used, the JTR Speakers Orbit Shifter LFU is the better pick: it ranks #2 of 143 subwoofers by sound quality (rated 4.6/5), against #22 (rated 4.4/5) for the Reaction Audio PV-15X. If you want one new, the JTR Speakers Orbit Shifter PRO ranks #1 at $4,499.
Buy the JTR Speakers Orbit Shifter LFU only if you find one used in good condition; both are discontinued, and it is the better rated of the two. For a new speaker, start with the JTR Speakers Orbit Shifter PRO instead.
Looking for alternatives? See the complete Subwoofers rankings.
Prices on this page were last checked November 7, 2026 at 7:34 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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Specifications Side By Side
| JTR Speakers Orbit Shifter LFU | Reaction Audio PV-15X | |
|---|---|---|
| Price | $6,995 Discontinued | $1,999 Passive, Discontinued |
| Ranked | #2 of 143 in Large Home Subwoofers (Over 75 lbs) | #22 of 143 in Large Home Subwoofers (Over 75 lbs) |
| Enclosure | ported, front | ported, rear |
| Output SPL at 12.5 Hz | 96.5 dB | - |
| Output SPL at 15 Hz | 104.5 dB | 105.3 dB |
| Output SPL at 20 Hz | 118.6 dB | 111.3 dB |
| Output SPL at 25 Hz | 125.5 dB | 116.1 dB |
| Output SPL at 31.5 Hz | 128.0 dB | 119.8 dB |
| Output SPL at 40 Hz | 131.1 dB | 125.3 dB |
| Output SPL at 50 Hz | 132.1 dB | 126.8 dB |
| Output SPL at 63 Hz | 134.4 dB | 126.1 dB |
| Output SPL at 80 Hz | 137.8 dB | 126.5 dB |
| Output SPL at 100 Hz | 139.7 dB | 126.4 dB |
| Output SPL at 125 Hz | 138.0 dB | 126.1 dB |
| CEA-2010-A Average (40-80Hz) | 133.8 dB | 126.2 dB |
| Dimensions | 22.5”H x 50”W x 36”D (571.5 x 1270.0 x 914.4 mm) | 18”H x 22”W x 29”D (457.2 x 558.8 x 736.6 mm) |
| Country | United States | - |
| Measurement Source | Data-bass | Data-bass |
| Weight | 177 lbs (80.3 kg) | 149.9 lbs (68 kg) |
| Drivers | 18” (457mm) driver | 15” (381mm) driver |
| Warranty | 5 years | - |
| Passive | - | Yes |
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