Short answer: the SVS PB-5000 R-Evolution. Both are rated 4.2/5 for sound quality (#77 and #60 of 143 subwoofers), and the SVS PB-5000 R-Evolution costs $2,399 against $2,670 for the Rythmik FV18, so with nothing between them on sound quality, price settles it.
Why pick the SVS PB-5000 R-Evolution: A ported 15 inch subwoofer with a powerful amplifier, adjustable port tuning, and app based room calibration. The tradeoff: No independent measurements yet, so its output can’t be compared directly with ranked subwoofers; the rating is estimated from the measured SVS PB-4000 it replaces (120.3dB in the 40 to 80Hz CEA-2010 bands).
The case for the Rythmik FV18: An 18 inch ported subwoofer with deep, powerful bass for large rooms and flexible balanced and RCA inputs. The catch: The 838.2H x 533.4W x 558.8D mm cabinet and 160.1 lbs (72.6 kg) mass make this a serious placement and moving commitment.
Buy the SVS PB-5000 R-Evolution. Both are rated the same for sound quality, and it costs $271 less than the Rythmik FV18.
About the ratings: the SVS PB-5000 R-Evolution’s rating is estimated from measured siblings and predecessors rather than its own measurements, with a likely range of 4.0 to 4.4, so this verdict could change once it is measured.
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Specifications Side By Side
| SVS PB-5000 R-Evolution | Rythmik FV18 | |
|---|---|---|
| Price | $2,399.00 | $2,670 |
| Ranked | #77 of 143 in Large Home Subwoofers (Over 75 lbs) Estimated | #60 of 143 in Large Home Subwoofers (Over 75 lbs) |
| Weight | 153.9 lbs (69.8 kg) | 160.1 lbs (72.6 kg) |
| Dimensions | 23.4”H x 20.5”W x 28.6”D (595 x 520 x 727 mm) | 33”H x 21”W x 22”D (838.2 x 533.4 x 558.8 mm) |
| Warranty | 5 | 5/3 |
| Enclosure | ported, variable tuning | ported, front |
| Drivers | 15” driver | 18” (457mm) driver |
| Amplifier Power | 2000W RMS | - |
| Frequency Response | 13Hz extension (manufacturer specified) | - |
| Cabinet Color | Premium Black Ash, Piano Gloss Black | black |
| Country | United States | United States |
| Output SPL at 12.5 Hz | - | 102.0 dB |
| Output SPL at 15 Hz | - | 109.5 dB |
| Output SPL at 20 Hz | - | 114.3 dB |
| Output SPL at 25 Hz | - | 117.6 dB |
| Output SPL at 31.5 Hz | - | 119.2 dB |
| Output SPL at 40 Hz | - | 120.4 dB |
| Output SPL at 50 Hz | - | 121.3 dB |
| Output SPL at 63 Hz | - | 121.7 dB |
| Output SPL at 80 Hz | - | 121.9 dB |
| Output SPL at 100 Hz | - | 122.4 dB |
| Output SPL at 125 Hz | - | 121.9 dB |
| CEA-2010-A Average (40-80Hz) | - | 121.3 dB |
| Measurement Source | - | Data-bass |
| Inputs | - | XLR (2), RCA (line/LFE) |
| 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 |
Where the Ratings Come From
- SVS PB-5000 R-Evolution: manufacturer specifications and listening comparisons; no independent measurement has been published yet.
- Rythmik FV18: manufacturer specifications and listening comparisons; no independent measurement has been published yet.
This comparison is generated from the ratings, specifications and measurements on each product’s own page, and it updates when that data changes. How we rank explains how each rating is decided.
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