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The SVS SB-2000 Subwoofer Review Print E-mail
Tuesday, 13 May 2014
Article Index
The SVS SB-2000 Subwoofer Review
Set Up and Listening

ImageSVS is one of those companies that established themselves in this “new economy” with a direct-to-consumer, high value, business model that has grown to include a burgeoning retail footprint as more brick-and-mortar AV dealers recognize the value proposition and unique energy of the brand. I reviewed, and was very impressed with, the $998 a pair SVS Ultra Bookshelf speakers. It had a smooth and sensual presentation, and it was built to a very high standard. SVS is now in their 16th year of business, and the loyal customer base continues to grow.

SVS sells products through its web store, and offers a nice in-home audition period. Forty-five days to be exact, with no restocking or shipping fees. That is sign of some serious confidence in the products. They also offer a five-year warranty Over thirty North American dealers carry SVS, plus a healthy international customer base, of which fifty percent buy through retail. You could call this a hybrid approach. This growth may be due to the fact the company makes complete speaker systems for both high quality two-channel playback and for home theater enthusiasts.

The company started out building a reputation with its subwoofers, and in for review is one of their models, the SB-2000, which sells for $699. SVS has a number of different subwoofers in their line up in three different categories. Three subs range from $499 to $1599 in their sealed box line, four subs range from $499 to $1999 in their ported box line, and three interesting subs in their cylinder line range from $749 to $1699.

There are differences and advantages to sealed and ported designs. According to SVS, "sealed subwoofers typically have a smaller overall cabinet size and footprint, allowing easier integration into the listening environment with minimal visual impact to the décor. A properly designed sealed subwoofer will typically exhibit less phase rotation, lower group delay, and reduced ringing in the time domain.  These characteristics make the sealed subwoofer a natural choice for critical music applications, and are typically described by enthusiasts as sounding tighter and more articulate, with less perceived overhang.

A sealed subwoofer naturally has a shallower roll-off slope than a ported subwoofer. SVS takes this concept one step further by employing sophisticated DSP equalization to tailor the overall shape of the frequency response and roll-off slope, in order to take maximum advantage of available ‘room gain’ so common in small to mid-size rooms. The end result is much deeper in-room extension than the quasi-anechoic frequency response would otherwise suggest.

With each successively deeper octave, cone excursion quadruples in a sealed subwoofer in order to maintain the same sound pressure level.  In addition, the equalization required to tailor and optimize the quasi-anechoic frequency response consumes amplifier power.  As a result, a sealed subwoofer will typically have considerably lower dynamic output limits <40 Hz than a larger ported subwoofer in the same family/price range.  

In a ported subwoofer design, a relatively large enclosure size is required in order to achieve both a deep system tuning frequency, and sufficient port area to minimize chuffing artifacts at high drive levels.  A larger enclosure also greatly enhances system efficiency in the deeper octaves, with no need for additional EQ boost to achieve naturally deep extension.
The result is 2-4X more peak dynamic output in the 18-36 Hz octave as compared to a sealed subwoofer in the same family/price range.  This makes the larger ported SVS subs a natural choice for system applications with larger rooms (where less room gain is present) and IMAX-like playback levels, particularly on demanding Blu-ray action and sci-fi movies with strong LFE tracks


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