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SVS SB-4000 Subwoofer Review

Main Features

  • 13.5" Composite/Glass Fiber Woofer
  • 1,200 watts RMS Output
  • 19-310 Hz Frequency Response
  • App Control Feature
  • Weight: 102.30 lbs / 46.50kg
  • Dimensions (H x W x D): 18-5/16" x 17-13/16" x 20-15/16"
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SVS SB-4000 Subwoofer Review
SVS SB-4000 SVS SB-4000
See at AMAZON

SB-4000 is a Sealed type Powered Subwoofer by SVS with a frequency range of 19-310 Hz. It features 1 x 13.5" Composite/Glass Fiber Woofer, and powered by a 1200 watts amplifier.

SB-4000 is a member of SVS's SB series of Powered subwoofers. SB stands for "Sealed Box" and represents the sealed subwoofers of SVS which are more compact compared to its ported subwoofers, and excel with punchiness, accuracy, and transient response. Below you can see the main specs of these subwoofers as well as review and comparison links.

SVS SB Series Subwoofers
Model Frequency Woofer Amp Power Weight
SVS SB-1000 Pro
Compare
20-270k Hz 12" 325 watts 11.82kg
SVS SB-2000 Pro
Compare
19-240k Hz 12" 550 watts 17.55kg
SVS SB-3000
Compare
18-270k Hz 13" 800 watts 24.77kg
SVS SB-2000
Compare
19-220k Hz 12" 500 watts 15.82kg
SVS SB-1000
Compare
24-260k Hz 12" 300 watts 12.27kg
SVS SB16-Ultra
Compare
16-460k Hz 16" 1500 watts 55.45kg
SVS SB-4000
19-310k Hz 13.5" 1200 watts 46.50kg


**This post contains affiliate links, and I will be compensated if you make a purchase after clicking through my links. As an Amazon Associate I earn from qualifying purchases.

Frequency Response

SVS SB-4000 has a Frequency response range of 19-310 Hz at ±3dB. Thanks to its 1 x 13.5-inch driver and 1200 watts RMS amplifier, at 19Hz the SB-4000 can generate bass levels that is even below 20Hz which is considered to be the bottom limit of Full Range sound (20Hz -20kHz) that human can hear. Here we have a comparison of how SB-4000's Low and High frequency values compare with the average, max and min Low and High frequency values in its class.

Low Frequency
Powered Subwoofers
SVS SB-4000
Min
Average
Max
High Frequency
Subwoofer Speakers
SVS SB-4000
Min
Average
Max

Among all subwoofers in our database with a max MSRP price of 2000$, these are the 5 Powered Subwoofer models that can reach deeper bass levels than the SVS SB-4000's 19Hz:

  • KEF KC62 with Low Frequency of 11 Hz (Compare w/ SB-4000)
  • KEF KC92 with Low Frequency of 11 Hz (Compare w/ SB-4000)
  • GoldenEar SuperSub X with Low Frequency of 12 Hz (Compare w/ SB-4000)
  • GoldenEar ForceField 40 with Low Frequency of 14 Hz (Compare w/ SB-4000)
  • GoldenEar ForceField 4 with Low Frequency of 14 Hz (Compare w/ SB-4000)

Low-Pass Crossover

SVS SB-4000 has a variable Low-pass filter (LFP) which lets you choose a frequency level between 30-200 Hz in order to block any frequencies above that point from reaching the amplifier.

App-Based Control

SVS SB-4000 can be controlled wirelessly via app available on iOS and Android. Considering the physical buttons are at the backside of the subwoofer, app control comes very handy when you need to change the parameters of the SVS SB-4000 frequently. Apps also provides settings that can't be placed on the body.

Inputs and Outputs

  • PreampLevel Inputs: Stereo RCA/LFE
  • SpeakerLevel Inputs: No
  • SpeakerLevel Outputs: No
  • Wireless: No

SVS SB-4000 External Dimensions and Weight

SVS SB-4000 has external dimensions of (Height x Width x Depth) 18-5/16 x 17-13/16 x 20-15/16inch (466.0 x 453.0 x 532.0mm ).

Base Surface Area
Base surface area of a loudspeaker may become a determining factor when the space in your room or desk is limited. The base area of SVS SB-4000 is approximately 2410.0cm2 / 373.6inch2.

To get a better perspective on the real life size of SVS SB-4000, let's compare it with a standard size Compact Disc which has a diameter of 4.7inch (120mm).

SVS SB-4000 Real Life Body Size Comparison
SVS SB-4000 Speaker Size Compared to a Compact Disc

Here we place the SVS SB-4000 virtually next to a standard width amplifier and turntable on a media center to get a better idea about the size.

SVS SB-4000 placed next to a Media Stand
SVS SB-4000 Subwoofer next to a Media Stand

Weight

The SVS SB-4000 weighs 46.50kg / 102.3lbs. Weight of a subwoofer is an important factor when you need to move and reposition the unit often to find the optimal positioning, also known as 'Subwoofer Crawling'. Here is a comparison of how SB-4000's weight compares with the average, max and min weights in its class.

Weight
All Subwoofer Speakers
SVS SB-4000
Min
Average
Max
Weight
Subwoofer Speakers under $2000
SVS SB-4000
Min
Average
Max

Cabinet type and Materials

SVS SB-4000 has a Acoustic Suspension type cabinet. Acoustic suspension aka Sealed subwoofers are preferred for music oriented systems whereas the Ported subwoofers are generally accepted to be more suitable for home theatre systems.

Port Position

SVS SB-4000 is a front-firing port speaker , which gives you more flexibility compared to rear firing speakers when you need to place it close against a wall or other surfaces.

Does the SVS SB-4000 come with a Grille?

SB-4000 comes with grilles. The purpose of the grille is to protect the delicate driver elements from external impacts while still allowing the sound to pass as clearly as possible.

What's in the Box of SVS SB-4000?

Here are the items that are included inside the box of SB-4000:
  • Powered subwoofer
  • Grille
  • 6-feet AC power cord
  • Remote control
  • 4 Elastomer feet
  • Owners Manual
  • Important Safety Instructions
  • Recommended Accessories

    Here is a list of accessories that we think you may need for the SVS SB-4000.

    • Vibration Isolators: IsoAcoustics isolators more affordable options too.
    • Acoustic Panels and Treatments: Your room is as important as your stereo equipment so acoustic treatments goes a long way in improving the overall performance.

    Warranty

    5 Years of parts warranty and 5 Years of labor warranty is generally provided by the manufacturer.

    SVS SB-4000 Alternatives in Powered Subwoofer Speakers
    Model Frequency Woofer Amp Power Dimensions
    Polk Monitor XT12
    Compare
    24-160k Hz 12" 50 watts 16-7/16inch x 16-1/16inch x 19-1/16inch "
    B&W DB4S
    Compare
    10-350k Hz 10" 1000 watts 14-3/4 x 14-1/4 x 17-1/16inch"
    Klipsch R-101SW
    Compare
    30-160k Hz 10" 150 watts 14-9/16inch x 14-1/16inch x 20-13/16inch "
    Klipsch R-121SW
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    Compare
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    SVS SB-1000 Pro
    Compare
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    Wharfedale SW-15
    Compare
    30-120k Hz 15" 400 watts 22-7/16inch x 19-3/8inch x 24-3/16inch "
    KEF KUBE 8b
    Compare
    34-140k Hz 8" 300 watts 11-9/16 x 11-5/8 x 13-5/16inch"
    KEF KUBE 10b
    Compare
    24-140k Hz 10" 300 watts 14-5/8 x 14 x 15-5/8inch"
    Klipsch SPL-100
    Compare
    27-125k Hz 10" 200 watts 16-7/16 x 14-1/16 x 18-13/16inch"
    JBL Stage A120P
    Compare
    32-150k Hz 12" 250 watts 16-5/16 x 15-7/16 x 18-11/16inch"
    KEF KC62
    Compare
    11-200k Hz 6.5" 1000 watts 9-5/8inch x 10-1/8inch x 11-1/16inch "
    SVS PB-1000
    Compare
    19-270k Hz 10" 300 watts 18-7/8 x 15 x 20-15/16inch"
    Klipsch RP-1400SW
    Compare
    16-141k Hz 14" 500 watts 21-5/16inch x 20inch x 25-11/16inch "
    B&W ASW610
    Compare
    27-140k Hz 10" 200 watts 12-5/8 x 12-1/4 x 15-1/2inch"
    Klipsch R-100SW
    Compare
    32-120k Hz 10" 150 watts 14-5/8 x 12-9/16 x 18-1/16inch"
    Frequently Asked Questions about SVS SB-4000
    What is the External Dimensions of SVS SB-4000
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