SB12-NSD Subwoofer

Rated 4.82634730538922 out of 5 stars and 167 reviews
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SB12-NSD Subwoofer

Rated 4.82634730538922 out of 5 stars and 167 reviews

The SVS SB12-NSD has been retired, but you can still get unrivaled SVS subwoofer performance from the compact powerhouse SB-1000, or our most popular model, the SB-2000 Pro.


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If you’re looking for an absolute steal of a subwoofer deal, the SB12-NSD is a well-balanced powerhouse that blends with any speakers to provide the perfect foundation of low-frequency output. Equally adaptable for music, movies, TV and gaming, in any room, the SB12-NSD produces deep, tight and articulate bass at any drive level with pinpoint accuracy and transient speed. With this low price, room-friendly design and limited supply, these subwoofers will disappear fast.

Audioholics - Bassaholic Certified Medium Award
Sound & Vision - Top Pick of the Year Award
AVForums - Best Buy Award

Frequency Response / Acoustic Data:

  • 23-270 Hz +/- 3 dB
  • 2-meter ground plane away from reflective structures (quasi-anechoic)

Subwoofer Specs:

  • Premium black ash finish
  • Front-firing 12" driver
  • Rigid Medium Density Fiberboard (MDF) cabinet
  • Protective non-resonant steel mesh grille
  • Detachable 8 foot power cord
  • Cabinet Dimensions: 14.2" (H) x 14.2" (W) x 14.2"(D)
  • Overall Dimensions: 14.7" (H) x 14.2" (W) x 17.3"(D) (includes feet, grille, amplifier)
  • Weight (unboxed): 35 pounds
  • Shipped Dimensions: 21" (H) x 20" (W) x 22"(D)
  • Weight: 51 pounds

Driver Specs:

  • SVS 12” NSD driver
  • 2” diameter, high-power voice coil with high-temp former
  • Nomex linear roll long-throw spider
  • Low-creep rubber long-throw surround
  • Spider-integrated tinsel leads
  • Aluminum cone and composite dust cap with SVS logo
  • Powder-coated cast aluminum basket
  • Finite Element Analysis (FEA)-optimized motor structure
  • Dual shorting rings and pole extenders to reduce gap induction and distortion
  • Dual high-grade ferrite magnets

Amplifier Specs:

  • STA-400D Sledge with 400 watts RMS continuous power (800 watts peak dynamic power)
  • High efficiency cool-running Class D switching topology
  • Detachable power cord with main power switch and fuse
  • RoHS compliant, lead-free construction and world-wide safety certifications
  • Auto-On / On switch with "green" standby mode
  • Stereo line-level RCA input/output connections
  • Fully adjustable low pass filter with Disable setting
  • Unfiltered (for daisy-chain) and 80 Hz HPF line level RCA outputs
  • Customized EQ and DSP limiter settings specifically for the SB12-NSD
  • Input impedance - 20 kΩ (unbalanced RCA)

From the thunderous pounding as a helicopter descends from overhead, to the thumping bass line of your favorite songs; the compact SVS SB12-NSD subwoofer delivers the sonic slam and room energizing SPLs that bring your entertainment to life.

A combination of innovative driver design, effortless amplifier power, handsome styling and compact dimensions make the SB12-NSD a world class performance at any price. The subwoofer easily integrates into any room and adds a powerful new dimension to all your entertainment. Feel sound like never before with dynamics that make your hair stand on end and effects that make you jump out of your seat. Best of all, you will never find this level of rock-solid SVS engineering and deep, articulate bass performance at such a low price, ever.

Forceful SVS 12" NSD High-Output Driver

With SVS, compact and affordable doesn’t mean compromising on performance. The 12” driver in the SB12-NSD handles every watt of the Sledge amplifier’s power and pumps out loads of deep, flawless and powerful bass with ultra-low distortion, even when pushed to the absolute limit.

Sledge Amplification: Foundation of Room Energizing Bass Performance

True to the SVS philosophy, the SB12-NSD Sledge STA-400D amplifier has been rigorously engineered to enhance the listening experience by providing quick, smooth and precise signal processing at all drive levels. With digital bass management features and flexible set up options, the Sledge amp makes it easy to optimize for any equipment and to accommodate any room characteristics. Conservatively rated at 800 watts peak power, and 400 watts continuous power, the SB12-NSD effortlessly works with the driver to deliver intelligent, powerful bass performance.

Handsome New Styling, Versatile Placement Options, Easy Room Integration

The SB12-NSD is available in premium Black Ash finish for high end styling that complements its stunning performance. At just over 14” on all sides, the compact SB12-NSD is incredibly easy to integrate into any living space and can even be placed inside furniture for a totally discrete set-up. The sealed box cabinet is optimized for deep, room-energizing bass, lightning quick speed in transients and revealing musicality that will suit both audiophiles and hone theater fans alike.

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Filter Reviews:
Burt S.

Subwoofer SB012NSD

Well Made but controlling gain to room and system is not as good as with the Ultra



For the money, an ok sub. Not a sub that will crack your drywall. Not bad, not super great. Nice aesthetics, features, and build quality. Overall, I would rate it a C+ or B-. For the money, A-. I think you could get a comparable sub for the money from HSU or maybe Outlaw JMHO. :-) Nice enough to keep. Thx

Matt W.

Powerful, but somewhat harsh sounding

I purchased dual SB12-NSD's on the Black Friday special (1 week before Black Friday) to use in my basement theater (18x18x8). I figured two of them would be great. After a few days of continuous listening to music and watching a few movies, I was not really impressed. The bass was quick and punchy as you’d expect from a sealed box, but there was little extension to lower frequencies. I didn’t get the feeling of being punched in the chest like I was looking for. If I had to describe their performance, it was more like a hard vibration than it was smooth and detailed. On Cyber Monday I got a steal on two SB13 Ultra’s and was blown away by their performance. Sure, even on their sale they were 2.5 times the price of the SB12-NSD’s, but I was tired of trying different subwoofers…so I decided to just put my money where my mouth was and go for one of the best. I listen to a lot of music, but still wanted a subwoofer to perform extremely well for movies. I initially had one SB13 Ultra set up in the front of the room, to the left of my right main speaker. The performance was incredible and surprisingly balanced, so the 2nd subwoofer really balanced out the bass in the room. After running Audyssey on my Denon receiver, the volume on the subwoofers were pretty low. The receiver set them to -12dB when leveled out. Read the instructions from SVS…increase the subwoofer level output on the receiver before you increase the volume level on the actual subwoofer. The bass will be much more detailed and smooth. I mentioned the SB12-NSD’s were a bit hard sounding, while these are very smooth and have much better low end extension. You feel these in your chest. The SB12-NSD’s rattled the walls and everything in the room from the vibration, while these rattle much less as they deliver much more smooth bass. I’m sure the new SB-4000’s are even better…so don’t hesitate to buy the SB13 Ultra if you can still find them, or the newer SB-4000. To answer one of the most asked questions…would you be better off getting two SB12-NSDs or one SB13-Ultra…without a doubt, the single SB13 Ultra will outperform the SB12-NSDs. The SB12-NSDs have high output and will rattle your house, but it isn’t just about power…the quality of the bass is a huge difference. I had one SB13 Ultra arrive with a dented grill, so I contacted SVS and they sent a replacement to me the next day, no questions asked. Incredible customer service to support their excellent products.

Kenneth A.

Not a bad little sub

The build quality is top-notch. The appearance is very nice. They are unobtrusive, and attractive with the wood-grained vinyl. They play very clean and tight, which is what I expected from SVS. Even at high volume levels they sound very good with no discernible distortion. The only nit I have to pick is that, even with two of them, I'm not getting that wall-rattling power that I was expecting. With the gain knob centered, even when I turn my receiver volume up to -12 dB I get some nice resonance in my ottoman, and little bit of an audible shake from my windows, but I was just expecting more. That said, they do sound very good, and will play very clean at high volume, so. . . Nice little sub. I'm just wondering if I shouldn't send them back and try a single larger, or maybe a ported sub.

Gianni X.


I don't know if is me doing something wrong. The reason I purchased was the outstanding reviews to replace my 12 inches sub from Aperion Audio. I did see much boom from your subwoofer. Aperion was a much better. Boom. I guess now I'm stuck. Sorry. Now I'm hesitate to purchase the complete set SVS Ultra Tower????? Thanks,