The RBH Sound Unrivaled 21-SF/R is rated 4.1/5 for sound quality, #91 of 143 Large Home Subwoofers (Over 75 lbs). See all Subwoofers rankings for every top pick.
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Brand: RBH Sound
#91 RBH Sound Unrivaled 21-SF/R: $11,995 eBay
Pros: A colossal sealed subwoofer with a 21 inch carbon fiber driver and extraordinary deep bass output for the biggest home theaters. Manufacturer-supplied CEA-2010 data records 112.3 dB at 20 Hz and 118.8 dB through 40-80 Hz, with a passing result down to 10 Hz. The 21” carbon fiber driver and 4,000W thermal power handling gave this sub the first Extreme Bassaholic room rating on record.
Cons: At about 151kg (333 lbs), moving or placing this cabinet is a multi-person job. It is 1092mm wide and 692mm tall, so it needs dedicated space in a large room. The price puts it well outside typical home theater budgets.
Is the RBH Sound Unrivaled 21-SF/R right for you?
Skip it if
- you need to move it often (151 kg each).
- you want the best value: the higher-rated JTR Speakers Orbit Shifter PRO costs about $7,496 less.
| Released | Aug 2023 (3 years ago) |
|---|---|
| CEA-2010-A Average (40-80Hz) | 118.8 dB |
| Country | United States |
| Dimensions | 27.3”H x 43”W x 21”D (692.2 x 1092.2 x 533.4 mm) |
| Drivers | 21” carbon fiber driver |
| Enclosure | sealed |
| Frequency Response | 12-80Hz, ±3dB |
| Measurement Source | Manufacturer |
| Output SPL at 10 Hz | 91.3 dB |
| Output SPL at 12.5 Hz | 97.7 dB |
| Output SPL at 14 Hz | 100.8 dB |
| Output SPL at 16 Hz | 105.5 dB |
| Output SPL at 20 Hz | 112.3 dB |
| Output SPL at 25 Hz | 117.2 dB |
| Output SPL at 31.5 Hz | 120.1 dB |
| Output SPL at 40 Hz | 119.5 dB |
| Output SPL at 50 Hz | 118.7 dB |
| Output SPL at 63 Hz | 118.4 dB |
| Output SPL at 80 Hz | 118.7 dB |
| Output SPL at 100 Hz | 119.2 dB |
| Power Handling | 4000W thermal power handling |
| Warranty | 10/3 |
| Weight | 332.9 lbs (151.0 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- These figures are manufacturer-specified rather than independently measured.
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