• FEA-optimized motor with copper shorting sleeve to reduce gap induction and distortion.
• Bifilar wound, 3" diameter, high-power aluminum voice coil.
  
• Dual linear-roll spiders and stitched parabolic surround for extreme excursion capability.
• Ultra-light and rigid composite cone provides excellent transient response.

Sledge Amplification – Intelligent and Sophisticated Power
The Sledge STA-800D amplifier is a perfect complement to the Plus-12 woofer, delivering 800 watts of clean DSP-controlled power. Comprehensive and extensive menu options are accessed via an intuitive single-knob interface with LCD display, allowing for easy set-up and integration into any home theater or stereo system.

• 800 watts of efficient, cool-running Class D power with 'green' standby mode.Stereo line-level RCA and balanced (XLR) I/O connections for the ultimate in connectivity.
  
• DSP control for refined behavior under all operating conditions.
  
• Variable tuning with 20Hz, 16Hz, and Sealed settings to match any room.
  
• Extensive menu options and digital crossover allows easy integration into any 2-channel system.
• Intuitive and easy to use single knob controller with bright LCD display.

• Large cabinet provides efficient reproduction of the deepest bass notes.
• Wide-flared triple 3" ports for maximum air-flow with no artifacts.
  
• 20 Hz, 16 Hz and Sealed variable tuning accommodates all room sizes and deep extension requirements.
• Curved metal grille with hidden neo magnet retention gives high-tech appearance.

• Dims: 22" (H) x 19.75" (W) x 25.2"(D)
• Weight: 127 pounds
• Rigid and braced MDF cabinet
• Black gloss or full veneer black oak finish
• Front-firing woofer
• Front-firing triple 3" high-flow flared ports
• Dense foam port blockers (3) included
• Variable 20 Hz, 16 Hz and Sealed tuning modes
• Protective non-resonant steel mesh grille

• SVS 12” high performance Plus woofer
• Bifilar wound, 3” diameter, high-power aluminum voice coil
• Polyimide impregnated fiberglass former/bobbin
• Single, composite layered, linear roll long-throw spider
• Integrated tinsel leads
• Nickel-plated high-tension spring terminals
• Proprietary injection molded gasket and parabolic SBR surround
• Composite pulp/fiberglass press layered cone with stitched surround
• Low carbon 1008 steel components, electrophoresis black plating
• FEA-optimized motor structure
• Copper shorting sleeve reduces gap induction and distortion, and enhances thermal conductivity
• Dual Genox 8H/Y-35 high grade ferrite magnets
• Oversized pole vent for greater cooling and low noise

• STA-800D Sledge with 800 watts continuous into 4 ohms nominal
• High efficiency cool-running Class D switching topology
• Detachable power cord with main power switch and ceramic fuse
• RoHS compliant, lead-free construction and world-wide safety certifications
• Auto-On / On switch with "green" standby mode
• Stereo line-level RCA and balanced (XLR) I/O connections
• Normal and Hi input voltage switch
• Customized EQ and DSP limiter settings specifically for the PB12-Plus
• Variable tuning with 20Hz, 16Hz, and Sealed settings to match subwoofer port settings
• Fully adjustable (frequency and slope) phase-correct speaker/sub digital crossover   
• Intelligent Feature Control (IFC) with bright LCD display
• Digital PEQ with adjustable frequency, cut/boost, and Q values
• Room gain compensation control with adjustable frequency and slope

Frequency Response/Acoustic Data:

• 2-meter ground plane away from reflective structures (quasi-anechoic)
• 20 Hz Mode:  20-150 Hz +/- 3 dB
• 16 Hz Mode: 16-150 Hz +/- 3 dB
• Sealed Mode: 30-150 Hz +/- 3 dB

Customer Reviews:

I purchased a home theatre system 2 yrs ago. Everything about the system rocked except the subwoofer. It was way underpowered and I felt like my
system was average at best because of this.

I negotiated with my wife to buy a new subwoofer. Once she gave me the ok I started my
research.

I researched every possible audiophile message board for two months and SVS always received glowing reviews.

i made
the plunge and purchased 2 subs even though I had no place to test them out

I was nervous and praying I made the right decision.
/>Once delivered, I got them in the basement with the help of my neighbor. Once set up we tested the cannon scene from Master and Commander, ACDC
live at Donnington, and Queen rocks Montreal.

My basement is a 2ft slab of concrete with carpet. The subs were placed on each side of the
entertainment furniture.

The cannon scene made my couch shake, I could feel the bass hit my chest. We had the biggest grin you can
imagine. I was like a 5 yr old on xmas day! The concerts were equally impressive. Everyone now wants to come over to watch movies and concerts. />
This was one of the best purchases I ever made period.

The only negative was that my wife gave me the ok to buy 1 sub not 2 so she
was pissed at me but it was well worth it.

Thank you SVS for making a product that looks awesome, has excellent build quality, and puts a
smile on my face every time I watch a movie or concert.

Looks scary and intimidates people easily ... like "hell no" or "wow" ... other than that, it is a good sw I've ever own ... this
is un upgrade for my HSU VTF1 ... very heavy tight bass and good for both movies and musics

AWESOME!!! I really do not know where to start. This Sub woofer has exceeded my expectation. I purchased this Sub woofer last year to replace my old
one and everyone always ask me what have you done different to your sounds system because it sound 100% better. All I did, it was to put the PB 12+ in
movie room and I get the big WOW effect now. This product would blow away every other company and competition. Just Try it and you will know the
difference!!! I got the Piano Polished and it looks very elegant and matched my other speakers. If you have the room for this sub woofer, The PB 12
plus will do the rest!! Hands down the BEST product and great prices!!!

Fantastic company, product and experience. I have owned my PB12+ now for a while and it still amazes me every time I turn my system on. It is hands
down the best piece of audio equipment to add to your system.

It adds a seamless extra dimension to TV, movies and games...one of those
things that you don't know what you are missing until you have it. Fantastic bass is a must for audiophiles, however, I seem to convince
non-audiophiles when they get a chance to listen to my setup.

The folks at SVS have done an incredible job and have earned a lifelong
customer. I must say though, they make a fantastic product, and you won't be a repeat customer because you have to replace something, it's because
you will want to upgrade. I will be seriously planning a dual sub setup when I purchase my next house with a larger living room.

I can't
recommend SVS highly enough to anyone that is interested and they have subs to fit every budget. Sit down and think about the money you spend
compared to use and any SVS woofer is a bargain. You won't regret it.

Amazing is the only word to describe this subwoofer. Make sure your house foundation can take the power this sub puts out - amazing clarity goes with
the power along with truly impressive quality.

First class personal customer service - the kind you come to expect from a small company. />
I recommend SVS and their Sub without reservations!

From the moment the semi-truck rolled down my street to unload the pallet containing my new SVS PB-12 Ultra Sub-Woofer I was impressed. Never before
has electronic equipment I’ve ordered arrived on a semi-truck. It took two friends to help me move the box into my living room to be unpacked.
Anxious to see the contents, the box was carefully opened and a beautifully constructed and aesthetically pleasing piece of furniture was revealed.
The cabinetry is solid, well constructed and brilliantly finished. The size and weight of the unit is impressive and I quickly realized why a
semi-truck was required for delivery.

The build quality did not stop with the cabinet. The grilled front looked like a handcrafted piece
of medieval armor, all while eloquently accentuating the cabinetry. Particularly impressive is the air space deliberately left between the grill and
the working parts of the sub-woofer such that the grill does not vibrate and interfere with the quality of the sound, while it shields the sub-woofer.
Of course, the true test and the primary reason I purchased the PB-12 ultra would be the sound quality.

Within minutes of its arrival, I
was able to unpack and connect the new addition to my home theater system and prepare for the first of a series of sound and positioning checks. I
wanted to run it through its paces, but I first decided to test the PB-12 with its factory settings to establish a baseline for a before and after
comparison. I was overwhelmed with the quality of the sound it produced right from the box. I have made some minor adjustments to calibrate the unit
to my room and system, but I have yet to be disappointed with any of the various combinations of settings I have tested. Simply put, the engineers
knew what they were doing and constructed a sub-woofer that knows how to handle sound well.

From the moment I plugged it in, it has
performed exactly as a high quality sub-woofer should. Its ability to play with my other speakers is awesome. It quietly lies in wait in the corner
of the room like a gentle lion drawing no attention to itself (I sometimes look to see if it is even on) while my main speakers and center channel
handle the front high to mid-range sounds while my surround sound speakers do the same for the rear. When the PB-12 plus is needed for the deeper
base sounds, it roars and sends clear, crisp and clean sound waves that ripple across the room and send chills up my spine with such great ease due to
its plentiful amplification. The pb12 plus greatly compliments my other speakers in the low frequency department. The subs easy to understand digital
interface upon the rear panel host a plethora of adjustment options to make intergration into your theater or sound room a breeze. It is precision
craftsmanship at work and the penultimate in tight detailed base.

From the pod racing scenes in Star Wars to the action scenes in Batman
Returns, it makes movies sound better than they do in most theaters. It also handles all forms of music I have tried with accuracy and ease. From
hip hop, to classical masterpieces, it simply makes the deep base notes come to life and hang in the room with absolutely no distortion. It is a
beautiful thing. I am more than satisfied. The PB-12 plus is a perfectly crafted component that is everything the manufacturer said it would be and
then some. It is a revered beast and one of the most important elements to any true home theater. I cannot wait to purchase my second one. And
customer service is first rate!

One helluva a subwoofer! The build quality is superior and the sound is clear, deep and full. The amp provides a wide variety of customizations that
I still haven't completely explored. This sub continually puts a smile on my face when something explodes on screen.

The staff at SVS is
second to none.

I was so satisfied with my purchase..my father bought one.

A truly outstanding subwoofer. I have heard many of the highest-end subs, but--dollar for dollar-- I've never heard anything that comes close to this
one.

This thing simply rocks the house.

Great product with excellent customer service...would buy SVS again in a heartbeat!