The RBH Sound SX-12 ranks #42 out of 145 total Medium Home Subwoofers (30-75 lbs) for sound quality. See all Subwoofers rankings for every top pick.
Brand: RBH Sound
Prices on this page were last checked September 14, 2026 at 1:47 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.
As an eBay Partner, we may be compensated if you make a purchase.

#42 RBH Sound SX-12: $1099 Discontinued eBay
Pros: 12-inch aluminum-cone ported with 350W RMS earns Large-room Bassaholic rating. Excellent musical performance with refined high-fidelity characteristics. Graceful side panel curves reduce standing waves. Impressive power without sacrificing musicality.
Cons: Discontinued.
How it compares: Just above it: Arendal 1961 Subwoofer 1S - $99 cheaper. Just below it: HSU Research VTF-3 MK4 - $200 more.
| Amplifier Power | 350W RMS |
|---|---|
| CEA-2010-A Average (40-80Hz) | 115.4 dB |
| Country | United States |
| Dimensions | 19.6"H x 17.7"W x 21.1"D (498.3 x 449.6 x 536.4 mm) |
| Discontinued | Yes |
| Drivers | 12" (305mm) driver |
| Enclosure | ported, bottom |
| Frequency Response | 27Hz (flat) |
| Measurement Source | Audioholics |
| Output SPL at 20 Hz | 90.7 dB |
| Output SPL at 25 Hz | 101.0 dB |
| Output SPL at 31.5 Hz | 111.0 dB |
| Output SPL at 40 Hz | 114.1 dB |
| Output SPL at 50 Hz | 116.7 dB |
| Output SPL at 63 Hz | 115.7 dB |
| Output SPL at 80 Hz | 115.1 dB |
| Output SPL at 100 Hz | 114.7 dB |
| Output SPL at 125 Hz | 114.6 dB |
| Warranty | 5/1(+5/+3) |
| Weight | 52.9 lbs (24.0 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