SVS SB-3000 vs Q Acoustics Q B12

Short answer: the SVS SB-3000 if sound quality matters most, the Q Acoustics Q B12 if price matters most. The SVS SB-3000 ranks #14 of 145 subwoofers at $1099. The Q Acoustics Q B12 ranks #54 at $664.90, $434.10 cheaper.

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 Q Acoustics Q B12 offers: Sealed 12-inch with 220W RMS sounds bigger and deeper with responsive speed for music and movies alike. Die-cast aluminum heat sink ensures efficient cooling. Sealed design offers placement flexibility in challenging rooms. Watch for: No detailed measurement caveats are currently recorded.

Buy the SVS SB-3000 when sound quality outweighs the price for you, and the Q Acoustics Q B12 when the price outweighs sound quality instead.

Looking for alternatives? See the complete Subwoofers rankings.

Specifications Side By Side

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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
  • SVS SB-3000 Website
• 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 Klipsch SPL-120
  • SVS SB-3000 vs Power Sound Audio (PSA) XV15
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Q Acoustics Q B12: $664.90 eBay

Pros: Sealed 12-inch with 220W RMS sounds bigger and deeper with responsive speed for music and movies alike. Die-cast aluminum heat sink ensures efficient cooling. Sealed design offers placement flexibility in challenging rooms.

Full Q Acoustics Q B12 review and specifications →

Amplifier Power	220W RMS
CEA-2010-A Average (40-80Hz)	115.2 dB
Cabinet Color	black, white
Country	United Kingdom
Dimensions	15.7"H x 15.7"W x 17.6"D (398.8 x 398.8 x 447.0 mm)
Drivers	12" (305mm) driver
Enclosure	sealed
Frequency Response	28-300Hz
Measurement Source	Brent Butterworth
Output SPL at 16 Hz	95.2 dB
Output SPL at 20 Hz	98.4 dB
Output SPL at 25 Hz	104.9 dB
Output SPL at 31.5 Hz	108.5 dB
Output SPL at 40 Hz	111.4 dB
Output SPL at 50 Hz	114.6 dB
Output SPL at 63 Hz	117.1 dB
Output SPL at 80 Hz	117.7 dB
Warranty	2
Weight	47.4 lbs (21.5 kg)

• Links
  • Q Acoustics Q B12 Website
• 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
  • Q Acoustics Q B12 vs Monoprice SW-15