SVS PB-4000 VS SB-4000

SVS PB-4000 VS SB-4000 – Full Comparison

In the realm of home theater technology, a number of products promise to deliver the ultimate audio experience. Two such ...

By Dewayne

In the realm of home theater technology, a number of products promise to deliver the ultimate audio experience. Two such products, the SVS PB-4000 and the SB-4000, are widely famed for their high-quality audio output. This post is designed to provide a comprehensive analysis of the two products, examining their design, pros and cons, and overall performance. By the time you finish reading, you’ll have an in-depth understanding of the SVS PB-4000 and SB-4000, enabling you to make an informed decision.

The motivation behind evaluating the SVS PB-4000 and SB-4000 originated from the consideration that a home theater system could be significantly enhanced by the inclusion of robust subwoofers. Able to deliver immersive sound, these subwoofers bear the potential to redefine one’s at-home audio experience. It’s a contest between two titans as we delve into the features, capabilities, and performance of these top-class home theater devices.

The comparison is based on multiple aspects: the product overviews along with their key specifications, an examination of design features, an appraisal of pros and cons, and a thorough performance analysis of both. We then place them side by side, scrutinize similarities and differences, all to help you determine which of these subwoofers will suit your home theater best.

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SVS PB-4000 Overview: Key Specifications

A look at the SVS PB-4000’s specifications reveals an impressive combination of power and precision. This subwoofer stands out due to its high dynamic output, particularly within the 18 to 36 Hz octave. Its expansive cabinet and ported design contribute significantly to its loud audio output, a desired trait for action-filled and sci-fi home theater content.

Undoubtedly, the SVS PB-4000 is a powerful device, capable of bringing dramatic soundscapes to life in larger rooms. Thanks to its larger cabinet size, it offers an unrivaled bang or impact combined with the pressure that is deeply cherished by the home theater enthusiasts. The efficacy of this subwoofer lies not just in its power, but in the control it maintains over that power – proving it to be an asset for any high-end home theater system.

Yet it’s not solely action films that would benefit from the SVS PB-4000’s capabilities. A key aspect of this device is that it is well-matched to any room size and playback level. This makes it a versatile component of a home theater system, offering the potential for deep audio output, even to near single digits, when sufficient room gain is available.

Continuing the topic of versatility further, it is important to note that the SVS PB-4000 boasts a remarkable perception of musicality, tightness, and speed. Details such as Group Delay (GD) profile add further depth to the overall performance, making the SVS PB-4000 a well-rounded piece of home theater equipment that delivers high-end, uncompromising listening experiences.

  • Brand: SVS
  • Model: PB-4000
  • Woofer: 13.5″ Front-firing driver
  • Cabinet: Ported box cabinet
  • Weight: 153.2 lbs
  • Dimensions: 23.4″ H x 20.5″ W x 30.7″ D
  • Minimum frequency response: 16 Hz
  • Maximum frequency response: 460 Hz
  • Amplifier power: 1,200W (continuous), 4,000W (peak)
  • RMS power: 1,200W
  • Sensitivity: 88 dB
  • Connectivity: RCA and speaker level inputs, XLR input, App based controls over Bluetooth

Design Features of SVS PB-4000

Diving into the design of the SVS PB-4000, it’s apparent that this subwoofer’s abilities are not accidental. Its bass reflex alignment is a standout feature of its design, contributing to a higher group delay coinciding with port tuning. Using physics principles, it manages to create a profound impact on its performance and sound output.

The expansive cabinet of the SVS PB-4000 is key not only to its high dynamic output but also to its aesthetics. The ported design, larger cabinet size, and bass reflex alignment all work together to produce a clean, powerful sound experience, ideal for intense movie sequences or rhythmic music beats.

Given that the majority of perceived sound quality differences between subwoofers are due to differences in in-room frequency response (FR), it’s clear that the SVS PB-4000’s design has a significant influence on its performance. It’s built to adapt to different room sizes and playback levels, which in turn influences its dynamic output.

Having examined the physical design features of the SVS PB-4000, it’s important to also mention the technical specifications that contribute to its notable sound quality. The subwoofer features an uncompromised sound engine, optimized through its advanced Digital Signal Processing system. Turn it on, and you are guaranteed a listening experience like no other.

Pros and Cons of SVS PB-4000

Despite its outstanding features, the SVS PB-4000, like any product, has its strengths and weaknesses. On its pros, the subwoofer’s high dynamic output in larger rooms is superb, making it ideal for sci-fi or action content. The SVS PB-4000’s capabilities don’t end there, as it’s also well-suited to all room sizes and playback levels.

Another advantage of the SVS PB-4000 is its perception of musicality, tightness, and speed. The bass reflex design plays a huge role in this, increasing group delay at specific frequencies. Along with this, the subwoofer’s large cabinet and ported design contribute to its powerful, deep sound output.

However, the SVS PB-4000 isn’t without its share of cons. Despite the subwoofer’s power and large cabinet size, its considerable dimensions can present placement issues in smaller rooms. The sizable footprint might not be ideal for all spaces, appearing obtrusive or disproportionate compared to other home theater components.

Another potential disadvantage relates to its performance at lower frequencies. Compared to subwoofers with different alignments, the PB-4000 displays higher group delay beyond the port tuning frequency. While this is inherent in the design of bass reflex subwoofers, it can affect the perceived tightness of the bass in specific musical passages.


  • High dynamic output, especially in larger rooms and for demanding audio content.
  • Versatile for all room sizes and playback levels.
  • Notably perceives musicality, tightness, and speed.
  • Larger cabinet and ported design contribute to robust audio output.
  • Advanced Digital Signal Processing for optimized sound output.


  • Its larger size may present placement issues in smaller rooms.
  • Its design leads to higher group delay, influencing the perceived bass tautness during certain audio performances.
  • The large cabinet can seem out of place in comparison with other home theater components.

SVS SB-4000 Overview: Key Specifications

Turning our attention to the SVS SB-4000, we find a subwoofer that promises no-compromise listening experiences. Like the PB-4000, the SB-4000 impresses with its performance in both room sizes and playback levels. Where it diverges, though, is in its ability to better harness available room gain, offering extended deep audio output where the room conditions allow it.

The performance of the SB-4000 in terms of musicality, tightness, and speed is comparable to that of the PB-4000. However, the pair diverge below lower frequencies around 28 Hz, which is a defining aspect when comparing these two home theater devices.

It’s the SB-4000’s ability to deliver down to near single digits (with sufficient room gain) that differentiates it from the PB-4000. Despite being a relatively smaller model, the SB-4000 is well capable of delivering high-quality, immersive sound, making it a worthy contender in this comparison.

Similar to the PB-4000, the SB-4000’s sound output experiences considerable influence from the device’s in-room frequency response (FR). The perceived differences in sound quality between the PB-4000 and SB-4000 are primarily due to this factor, solidifying the role it plays in the overall performance of any home theater device.

  • Brand: SVS
  • Model: SB-4000
  • Woofer: 13.5″ Front-firing driver
  • Cabinet: Sealed box cabinet
  • Weight: 102.3 lbs
  • Dimensions: 18.3″ H x 17.8″ W x 20.9″ D
  • Minimum frequency response: 19 Hz
  • Maximum frequency response: 310 Hz
  • Amplifier power: 1,200W (continuous), 4,000W (peak)
  • RMS power: 1,200W
  • Sensitivity: 88 dB
  • Connectivity: RCA and speaker level inputs, XLR input, App based controls over Bluetooth

Design Features of SVS SB-4000

The SVS SB-4000 touts a compact, closed box design. This design choice contributes to its performance benefits, especially in smaller rooms. Its relatively lower size does not compromise its sound output or the perceived quality of its bass.

A defining part of the SB-4000 design is the conscious decision to make it smaller and less obtrusive than its PB-4000 counterpart. This makes it an ideal choice for smaller listening spaces where a large subwoofer would most likely be overwhelming.

Beyond its physical design, the SB-4000 also incorporates advanced DSP controls, a digital front plate, and smartphone app compatibility. These design choices enhance user convenience by making adjustments and settings more accessible. The SVS SB-4000 thus manages not just to sound good but also to be user-friendly.

Despite its smaller form compared to the PB-4000, the SB-4000 does not compromise sound quality or output. Filled to the brim with capabilities, it proves that power, precision, and a high-end listening experience are achievable without the need for the large cabinet size of its PB counterpart.

Pros and Cons of SVS SB-4000

The pros and cons of the SVS SB-4000 should be considered carefully for a complete understanding of the product. On the upside, the SB-4000’s compact size makes it less obtrusive and easier to fit into smaller listening spaces. It delivers great sound quality on all room sizes and playback levels and allows better use of the available room gain.

Regarding musicality, tightness, and speed, the SB-4000 performs exceptionally well. It parallels the PB-4000 in this aspect, indicating that you don’t have to compromise on these qualities when opting for this model.

On the downside, the SB-4000 may not deliver as much ‘slam’ or ‘impact’ as the PB-4000 during playback of demanding LFE passages, especially in larger rooms. It’s a trade-off between size and power, and for some, the lesser impact could be a deterrent.

Another potential limitation is the SB-4000’s output compared to the PB-4000. While the SB-4000 offers a no-compromise listening experience under ideal conditions, it does not pack the same dynamism as the PB-4000. This may affect the perceived quality of sound during highly intense passages in media content.


  • Compact design fits easily in smaller spaces.
  • Delivers high-quality sound across different room sizes and playback levels.
  • Matches the PB-4000’s perceived musicality, tightness, and speed.
  • Can utilize room gain to advantage, delivering low-frequency sound.
  • User-friendly due to digital front plate, smart compatibility, and advanced DSP controls.


  • Might not deliver intense ‘slam’ or ‘impact’ as the PB-4000 in demanding audio content, especially in large rooms.
  • Its sound dynamism might not match up to PB-4000 during intense audio content playback.

Comparing the Design of SVS PB-4000 and SB-4000

When comparing the SVS PB-4000 and SB-4000, the design differences between the two quickly become apparent. The PB-4000 features a larger cabinet and ported design, resulting in higher dynamic output. On the other hand, the SB-4000’s smaller, closed box design is more aesthetically pleasing and less obtrusive.

However, the design also influences the products’ performance. The PB-4000’s larger size increases its dynamic output and power, making it a perfect choice for larger rooms. On the contrary, the SB-4000 can better leverage available room gain, giving it an advantage in smaller rooms.

Ultimately, the design choices influence the perceived sound quality and performance according to the size of the room. The PB-4000 may seem overpowering in smaller rooms, whereas the SB-4000 may be unable to deliver the same impact in larger rooms as the PB-4000.

It’s important, however, to note that both models successfully incorporate advanced DSP controls, which end up making the devices user-friendly. They also provide reasonable flexibility, allowing them to be tailormade according to the listener’s preference and the characteristics of the room.

Examining the Performance: SVS PB-4000 VS SB-4000

Both the SVS PB-4000 and the SB-4000 deliver high performance, but they showcase their strengths differently. The PB-4000 shines in larger rooms, presenting a more impactful and dynamic sound. The SB-4000, while smaller, packs a punch and delivers sound quality that challenges the PB-4000.

In terms of playback levels, both devices handle them with finesse. They allow adjustments according to listener preference and room characteristics. The PB-4000 tends to provide greater dynamism during the playback of demanding LFE passages due to its design.

However, the SB-4000 offers a no-compromise listening experience and leverages room gain better, especially in smaller room conditions. This efficient utilizing of available room gain helps it deliver sound reaching down to near single digits.

When it comes to perceived musicality, tightness, and speed, both the subwoofers largely compete on an equal footing. However, the divergence begins when frequencies dip below about 28 Hz, and here the PB-4000 takes the helm due to its bass-reflex design and higher group delay.

The Bottom Line: Which is Better?

Concluding which of the two subwoofers is ‘better’ isn’t as straightforward as one might think. Both the SVS PB-4000 and SB-4000 excel in their own respects, and the right choice depends largely on individual requirements and room conditions.

The PB-4000 seems more suited for larger rooms and high-octane media content with its high dynamic output and impactful sound. On the other hand, the SB-4000 makes perfect sense for smaller rooms, is easier to fit in, and offers superior performance with available room gain.

The bottom line? Both subwoofers deliver premier audio experiences, and the ‘better’ option will likely depend on your room size, personal preferences, and the nature of your media consumption.


As we conclude this in-depth comparison of the SVS PB-4000 and SB-4000, it is clear that both subwoofers offer more than mere bass. Providing a high-end, immersive home theater experience, either of these subwoofers could be the missing piece in your audio setup puzzle.

Key factors to consider when choosing include your room size, your preference for impact and dynamism, and the style of media you consume most. Whether it’s the raw power of the PB-4000 or the compact strength of the SB-4000, SVS has a subwoofer designed to meet your home theater needs. It simply comes down to picking what suits you best.

Regardless of your choice, one thing is certain: The SVS PB-4000 and SB-4000 are sure to impress, delivering an audio experience that will move and immerse you in the heart of your entertainment.

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