Short answer: the SVS SB-3000 for the higher ranking, the Klipsch R-121SW for the lower price. The SVS SB-3000 ranks #9 of 137 subwoofers at $1199. The Klipsch R-121SW ranks #77 at $279, $920 cheaper.
On the Klipsch R-121SW side: 12-inch spun-copper driver with 200W RMS delivers controlled, musical bass with minimal distortion.
The case for the SVS SB-3000: 13-inch sealed with 800W RMS (2500W peak) delivers 118.7dB average with exceptional accuracy. The catch: Ported cabinet room-mode dependency, compact 25 kg size limits bass extension, and $1,100 investment.
Buy the Klipsch R-121SW if the price matters more than the ranking. Buy the SVS SB-3000 if the ranking matters more than the price.
Specifications Side By Side
| Klipsch R-121SW | SVS SB-3000 | |
|---|---|---|
| Price | $279.00 | $1,199.00 |
| Ranked | #77 of 137 in Medium Powered Home Subwoofers (30-75 lbs) | #9 of 137 in Medium Powered Home Subwoofers (30-75 lbs) |
| Enclosure | ported, rear | sealed |
| Output SPL at 15 Hz | 90.7 dB | 90.3 dB |
| Output SPL at 20 Hz | 96.0 dB | 96.6 dB |
| Output SPL at 25 Hz | 98.4 dB | 101.7 dB |
| Output SPL at 31.5 Hz | 102.3 dB | 107.8 dB |
| Output SPL at 40 Hz | 108.2 dB | 114.6 dB |
| Output SPL at 50 Hz | 112.4 dB | 118.7 dB |
| Output SPL at 63 Hz | 112.9 dB | 120.7 dB |
| Output SPL at 80 Hz | 111.3 dB | 120.9 dB |
| Output SPL at 100 Hz | 109.9 dB | 120.8 dB |
| Output SPL at 125 Hz | 108.3 dB | 120.7 dB |
| CEA-2010-A Average (40-80Hz) | 111.2 dB | 118.7 dB |
| Dimensions | 16.6"H x 16.0"W x 19.7"D (421.6 x 406.4 x 500.4 mm) | 15.6"H x 15.2"W x 15.7"D (396.2 x 386.1 x 398.8 mm) |
| Weight | 35.1 lbs / 15.9 kg | 54.5 lbs / 24.7 kg |
| Warranty | 5/2 | 5 |
| Cabinet Color | black | black |
| Country | United States | United States |
| Measurement Source | Audioholics | Audioholics |
| Power Output (Watts) | 200W RMS | 800W RMS / 2500W peak |
| Frequency Response | 28-120Hz | 18-270Hz, ±3dB |
| Drivers | 12" (305mm) driver | 13" (330mm) driver |
| Crossover | - | 30-200Hz adjustable, 6/12/18/24dB slopes |
| Input Connections | - | RCA (unbalanced), USB |
| Phase Control | - | 0°-180° |
| Features | - | Auto/On, 3-12V AC/DC trigger |
The Two Speakers In Full
Klipsch R-121SW: $279.00 Amazon
Pros: 12-inch spun-copper driver with 200W RMS delivers controlled, musical bass with minimal distortion. Front-firing design maximizes placement flexibility. Excellent value with exceptional bang-for-buck.
| CEA-2010-A Average (40-80Hz) | 111.2 dB |
|---|---|
| Cabinet Color | black |
| Country | United States |
| Dimensions | 16.6"H x 16.0"W x 19.7"D (421.6 x 406.4 x 500.4 mm) |
| Drivers | 12" (305mm) driver |
| Enclosure | ported, rear |
| Frequency Response | 28-120Hz |
| Measurement Source | Audioholics |
| Output SPL at 15 Hz | 90.7 dB |
| Output SPL at 20 Hz | 96.0 dB |
| Output SPL at 25 Hz | 98.4 dB |
| Output SPL at 31.5 Hz | 102.3 dB |
| Output SPL at 40 Hz | 108.2 dB |
| Output SPL at 50 Hz | 112.4 dB |
| Output SPL at 63 Hz | 112.9 dB |
| Output SPL at 80 Hz | 111.3 dB |
| Output SPL at 100 Hz | 109.9 dB |
| Output SPL at 125 Hz | 108.3 dB |
| Power Output (Watts) | 200W RMS |
| Warranty | 5/2 |
| Weight | 35.1 lbs / 15.9 kg |
- Head-to-Head Comparisons
- Klipsch R-121SW vs SVS SB-2000
- Klipsch R-121SW vs Monoprice Monolith M-10 V2
- Klipsch R-121SW vs RSL (Rogersound Labs) Speedwoofer 10S MKII
- Klipsch R-121SW vs Rythmik F12
- Klipsch R-121SW vs Monoprice SSW-10
- Klipsch R-121SW vs Monoprice SW-12
- Klipsch R-121SW vs SVS PB-1000 PRO
- Klipsch R-121SW vs Kef KC62
- See all 14 comparisons
- Links
SVS SB-3000: $1,199.00 Amazon
Pros: 13-inch sealed with 800W RMS (2500W peak) delivers 118.7dB average with exceptional accuracy. Beautifully made with pinpoint control and flawless tonal accuracy. Sweet spot performance-to-value ratio. Three-band parametric EQ with 1Hz precision adjustment.
Cons: Ported cabinet room-mode dependency, compact 25 kg size limits bass extension, and $1,100 investment.
| CEA-2010-A Average (40-80Hz) | 118.7 dB |
|---|---|
| Cabinet Color | black |
| Country | United States |
| Crossover | 30-200Hz adjustable, 6/12/18/24dB slopes |
| Dimensions | 15.6"H x 15.2"W x 15.7"D (396.2 x 386.1 x 398.8 mm) |
| Drivers | 13" (330mm) driver |
| Enclosure | sealed |
| Features | Auto/On, 3-12V AC/DC trigger |
| Frequency Response | 18-270Hz, ±3dB |
| Input Connections | RCA (unbalanced), USB |
| Measurement Source | Audioholics |
| Output SPL at 15 Hz | 90.3 dB |
| Output SPL at 20 Hz | 96.6 dB |
| Output SPL at 25 Hz | 101.7 dB |
| Output SPL at 31.5 Hz | 107.8 dB |
| Output SPL at 40 Hz | 114.6 dB |
| Output SPL at 50 Hz | 118.7 dB |
| Output SPL at 63 Hz | 120.7 dB |
| Output SPL at 80 Hz | 120.9 dB |
| Output SPL at 100 Hz | 120.8 dB |
| Output SPL at 125 Hz | 120.7 dB |
| Phase Control | 0°-180° |
| Power Output (Watts) | 800W RMS / 2500W peak |
| Warranty | 5 |
| Weight | 54.5 lbs / 24.7 kg |
- Head-to-Head Comparisons
- SVS SB-3000 vs Monoprice SW-15
- SVS SB-3000 vs Power Sound Audio (PSA) XS15
- SVS SB-3000 vs Power Sound Audio (PSA) XV15SEICE-BASE
- SVS SB-3000 vs Power Sound Audio (PSA) XS15-BASE
- SVS SB-3000 vs HSU Research ULS-15 MK2
- SVS SB-3000 vs MartinLogan Dynamo 1600X
- SVS SB-3000 vs JTR Speakers Captivator 212PRO
- SVS SB-3000 vs SVS PB-1000 PRO
- See all 16 comparisons
- Links
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Product prices and availability were last checked August 9, 2026 at 6:57 AM UTC 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.