Short answer: the Rythmik LV12. It ranks #7 of 145 subwoofers by sound quality at $899; the SVS SB-3000 ranks #14 and costs $1099, so there is little reason to consider the other one.
What the SVS SB-3000 offers: 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. Watch for: Ported cabinet room-mode dependency, compact 25 kg size limits bass extension, and $1,100 investment.
What the Rythmik LV12 offers: 12-inch ported with 300W RMS, direct servo control extends 19Hz. Switchable Q settings (19Hz Low/22Hz Med/24Hz High) adjust bass response and loudness. 5-year driver warranty. Phase and crossover controls for flexible integration. Watch for: No detailed measurement caveats are currently recorded.
Buy the Rythmik LV12. It ranks higher for sound quality than the SVS SB-3000 and costs less, which settles it without a real tradeoff to make.
Want more options? Browse the full Subwoofers rankings.
Specifications Side By Side
| SVS SB-3000 | Rythmik LV12 | |
|---|---|---|
| Price | $1,099.00 | $899 |
| Ranked | #14 of 145 in Medium Home Subwoofers (30-75 lbs) | #7 of 145 in Medium Home Subwoofers (30-75 lbs) |
| Enclosure | sealed | ported, front |
| Output SPL at 15 Hz | 90.3 dB | - |
| Output SPL at 20 Hz | 96.6 dB | 107.7 dB |
| Output SPL at 25 Hz | 101.7 dB | 113.2 dB |
| Output SPL at 31.5 Hz | 107.8 dB | 116.6 dB |
| Output SPL at 40 Hz | 114.6 dB | 120.2 dB |
| Output SPL at 50 Hz | 118.7 dB | 120.4 dB |
| Output SPL at 63 Hz | 120.7 dB | 121.2 dB |
| Output SPL at 80 Hz | 120.9 dB | 119.3 dB |
| Output SPL at 100 Hz | 120.8 dB | - |
| Output SPL at 125 Hz | 120.7 dB | - |
| CEA-2010-A Average (40-80Hz) | 118.7 dB | 120.3 dB |
| Dimensions | 15.6"H x 15.2"W x 15.7"D (396.2 x 386.1 x 398.8 mm) | 19.5"H x 15"W x 18.5"D (495.3 x 381.0 x 469.9 mm) |
| Weight | 54.5 lbs (24.7 kg) | 69 lbs (31.3 kg) |
| Warranty | 5 | 5/3 |
| Cabinet Color | black | black |
| Country | United States | United States |
| Measurement Source | Audioholics | Brent Butterworth |
| Frequency Response | 18-270Hz, ±3dB | 19Hz-300Hz |
| Amplifier Power | 800W RMS / 2500W peak | 300W RMS |
| Crossover Frequency | 30-200Hz adjustable, 6/12/18/24dB slopes | - |
| Inputs | RCA (unbalanced), USB | - |
| Phase Control | 0°-180° | - |
| Features | Auto/On, 3-12V AC/DC trigger | - |
| Drivers | 13" (330mm) driver | 12" (305mm) driver |
| Output SPL at 16 Hz | - | 101.0 dB |
Related Speaker Comparisons
More top alternatives to Rythmik LV12:
- Monoprice SW-15 vs Rythmik LV12
- SVS SB-3000 vs KRK Systems 12S
- SVS SB-2000 vs SVS SB-3000
- SVS SB-3000 vs Bose Lifestyle Ultra Subwoofer
- SVS SB-3000 vs HSU Research VTF-2 MK4
Prices on this page were last checked September 16, 2026 at 12:41 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.
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The Two Speakers In Full
SVS SB-3000: $1,099.00 Amazon eBay
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.
Full SVS SB-3000 review and specifications →
| Amplifier Power | 800W RMS / 2500W peak |
|---|---|
| CEA-2010-A Average (40-80Hz) | 118.7 dB |
| Cabinet Color | black |
| Country | United States |
| Crossover Frequency | 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 |
| Inputs | 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° |
| Warranty | 5 |
| Weight | 54.5 lbs (24.7 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
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- SVS SB-3000 vs Power Sound Audio (PSA) XS15-BASE
- SVS SB-3000 vs Power Sound Audio (PSA) XV15-BASE
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Rythmik LV12: $899 eBay
Pros: 12-inch ported with 300W RMS, direct servo control extends 19Hz. Switchable Q settings (19Hz Low/22Hz Med/24Hz High) adjust bass response and loudness. 5-year driver warranty. Phase and crossover controls for flexible integration.
Full Rythmik LV12 review and specifications →
| Amplifier Power | 300W RMS |
|---|---|
| CEA-2010-A Average (40-80Hz) | 120.3 dB |
| Cabinet Color | black |
| Country | United States |
| Dimensions | 19.5"H x 15"W x 18.5"D (495.3 x 381.0 x 469.9 mm) |
| Drivers | 12" (305mm) driver |
| Enclosure | ported, front |
| Frequency Response | 19Hz-300Hz |
| Measurement Source | Brent Butterworth |
| Output SPL at 16 Hz | 101.0 dB |
| Output SPL at 20 Hz | 107.7 dB |
| Output SPL at 25 Hz | 113.2 dB |
| Output SPL at 31.5 Hz | 116.6 dB |
| Output SPL at 40 Hz | 120.2 dB |
| Output SPL at 50 Hz | 120.4 dB |
| Output SPL at 63 Hz | 121.2 dB |
| Output SPL at 80 Hz | 119.3 dB |
| Warranty | 5/3 |
| Weight | 69 lbs (31.3 kg) |
- Reviews, Comparisons and Sound Samples
- Independently measured by Brent Butterworth; the published figures above come from this ASR subwoofer measurement thread.
- Head-to-Head Comparisons