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Focal IWSUB8 Subwoofer Review

Main Features

  • 8" Polyglass Woofer
  • 34-140HzHz Frequency Response
  • Dimensions (H x W x D): 13.6250" x 13.6250" x 4.2500"
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Focal IWSUB8 Subwoofer Review
Focal IWSUB8 Focal IWSUB8
See at AMAZON

IWSUB8 is a In-wall type Passive In-wall by Focal with a frequency range of 34-140HzHz. It features 1 x 8" Polyglass Woofer, and powered by a watts amplifier.


**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

Focal IWSUB8 has a Frequency response range of 34-140HzHz at ±3dB. Here we have a comparison of how IWSUB8's Low and High frequency values compare with the average, max and min Low and High frequency values in its class.

Low Frequency
Passive In-walls
Focal IWSUB8
Min
Average
Max
High Frequency
In-wall Speakers
Focal IWSUB8
Min
Average
Max

Among all subwoofers in our database with a max MSRP price of 750$, these are the 5 Passive In-wall models that can reach deeper bass levels than the Focal IWSUB8's 34Hz:

  • GoldenEar Invisa MPX with Low Frequency of 25 Hz (Compare w/ IWSUB8)
  • Definitive DI 6.5S with Low Frequency of 26 Hz (Compare w/ IWSUB8)
  • Definitive DT8LCR with Low Frequency of 27 Hz (Compare w/ IWSUB8)
  • Definitive DI 5.5S with Low Frequency of 28 Hz (Compare w/ IWSUB8)
  • Definitive DT6.5LCR with Low Frequency of 28 Hz (Compare w/ IWSUB8)

Focal IWSUB8 External Dimensions and Weight

Focal IWSUB8 has external dimensions of (Height x Width x Depth) 13.6250-inch x 13.6250-inch x 4.2500-inch (347.0 x 347.0 x 108.0mm ).

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 Focal IWSUB8 is approximately 374.8cm2 / 58.1inch2.

Cabinet type and Materials

Focal IWSUB8 has a In-wall type cabinet.

What's in the Box of Focal IWSUB8?

Here are the items that are included inside the box of IWSUB8:
  • Passive in-wall subwoofer
  • Magnetic mounting frame
  • Metal-mesh grille
  • 2 Angled mounting brackets
  • Thirty-six 30mm screws
  • Twelve 13.5
  • Recommended Accessories

    Here is a list of accessories that we think you may need for the Focal IWSUB8.

    • Speaker Cable and Connectors
      • Speaker Cables with Banana Plugs: If you know the lenght of the cable you need, this is the easier option to connect your speakers with your amp.
      • Speaker Cables without Connectors: If you are not sure about the lenght or need longer than standard cables with plugs, choose this option.
      • Banana Connectors and Plugs: If you chose the cables without connectors option or already have some cable around, pick the banana plugs separately.
    • 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

    2 Years of parts warranty and 2 Years of labor warranty is generally provided by the manufacturer.

    Focal IWSUB8 Alternatives in Passive In-wall Speakers
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    Klipsch R-5800-W II
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    40-23k Hz 8" watts 14.6875-inch x 9.1250-inch x 3.9375-inch"
    JBL Studio 6 88LCR
    Compare
    43-20k Hz 8" watts 20.4375-inch x 8.7500-inch x 3.7500-inch"
    Klipsch R-5502-W II
    Compare
    46-20k Hz 5.25" watts 16.3750-inch x 6.5000-inch x 3.3750-inch"
    B&W CWM7.3 S2
    Compare
    48-28k Hz 6" watts 28.0000-inch x 9.9375-inch x 4.0625-inch"
    MartinLogan Motion XT CI XTW6-LCR
    Compare
    44-25k Hz 6.5" watts 27.0000-inch x 6.6250-inch x 3.5625-inch"
    JBL Studio 2 55IW
    Compare
    40-20k Hz 5.25" watts 14.1250-inch x 6.4375-inch x 3.3750-inch"
    B&W CWM7.4 S2
    Compare
    45-28k Hz 4" watts 23.5000-inch x 5.8125-inch x 3.6875-inch"
    JBL Studio 6 Theater
    Compare
    65-20k Hz 5.25" watts 25.3125-inch x 6.2500-inch x 3.7500-inch"
    Klipsch R-5650-S II
    Compare
    60-23k Hz 6.5" watts 13.0000-inch x 8.0000-inch x 3.6875-inch"
    B&W CWM663
    Compare
    45-50k Hz 6" watts 11.0000-inch x 7.2500-inch x 3.7500-inch"
    JBL Stage 280W
    Compare
    42-25k Hz 8" watts 14.6875-inch x 9.3750-inch x 3.8750-inch"
    Definitive UIW RLS III
    Compare
    24-30k Hz 5.25" watts 23.7500-inch x 5.8750-inch x 3.8750-inch"
    Polk Audio 265-LS
    Compare
    28-33k Hz 6.5" watts 19.1875-inch x 7.2500-inch x 0.0000-inch"
    Focal 100 IW LCR5
    Compare
    55-23k Hz 5.125" watts 16.3130-inch x 5.8130-inch x 3.2500-inch"
    JBL Stage 260W
    Compare
    50-25k Hz 6.5" watts 12.2500-inch x 7.2500-inch x 3.5625-inch"
    Focal 300 IW6 LCR
    Compare
    40-28k Hz 6.5" watts 22.5000-inch x 7.5000-inch x 4.0000-inch"
    Frequently Asked Questions about Focal IWSUB8
    What is the External Dimensions of Focal IWSUB8
    is the Focal IWSUB8 an easy to drive speaker?
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