A low-profile aluminium isolation stand for subwoofers from IsoAcoustics. The Aperta Sub supports front-firing and side-firing subwoofers up to 80 lb (36.3 kg) and measures 10.5 x 11.5 inches (265 x 290 mm). Four carpet discs are included.
IsoAcoustics says the Aperta Sub decouples a subwoofer from the surface it sits on, so less energy passes into the floor or shelf. It sits directly under the cabinet without interfering with the subwoofer's existing feet.
Aperta Sub unboxing
Why you will love it
Isolation for subwoofers
IsoAcoustics says the Aperta Sub stops the physical transfer of energy that excites the supporting surface, which it says causes room rattle and can disturb neighbours.
It also says the isolation stops vibration reflecting from the surface back up the subwoofer cabinet. IsoAcoustics says managing these reflections reduces bass smear and gives greater clarity and definition.


Low profile and ready to use
The stand has a sculpted aluminium frame and patented IsoAcoustics isolators. It arrives ready to use, with no assembly. IsoAcoustics says to place it under the subwoofer.
Its shape lets it sit under the cabinet without interfering with the subwoofer's feet. IsoAcoustics recommends measuring the stand against the flat bottom of your subwoofer. The subwoofer should be the same size as the stand or larger, and a few inches of overhang on each side is acceptable.
Carpet discs included
Four carpet discs come with the stand for use on thick pile carpet. IsoAcoustics says they give a strong connection through the carpet so the stand has a solid base.

Directional isolators
The isolators are directional. IsoAcoustics recommends the logo facing forward, in the same direction as the driver, to resist sideways movement. For a side-firing subwoofer, it says the Aperta Sub works best turned sideways so the isolators line up with the driver.
IsoAcoustics says the isolation was tested at the National Research Council of Canada.
Is it right for you?
A great fit if you…
- Have a front-firing or side-firing subwoofer up to 80 lb (36.3 kg)
- Want to reduce vibration passing into a floor or shelf
- Have a subwoofer on carpet and want a stand with carpet discs
- Want an isolation stand that needs no assembly
Worth knowing
- The stand has a fixed size, and IsoAcoustics says it does not fit every subwoofer. Measure your subwoofer's base first
- The subwoofer should be the same size as the stand or larger
- There is no height or tilt adjustment
- IsoAcoustics lists the Aperta Sub in black only
- For a subwoofer over 80 lb (36.3 kg) and a larger base, see the Aperta Sub XL
Build your system
The Aperta Sub is made for subwoofers. IsoAcoustics lists other Aperta stands for bookshelf speakers.
- Subwoofer: Browse subwoofers
- Larger subwoofers: For subwoofers up to 160 lb, see the IsoAcoustics Aperta Series Subwoofer Isolation Stands Extra Large
- Bookshelf speakers: Use the IsoAcoustics Aperta Series speaker isolation stands for bookshelf and centre speakers
- Floorstanders: Use IsoAcoustics GAIA isolation feet for floorstanding speakers
Specifications
Aperta Sub
| Dimensions (W x D x H) | 265 x 290 x 33 mm (10.5 x 11.5 x 1.3 in) |
|---|---|
| Weight capacity | 80 lb (36.3 kg) |
| Fits | Front-firing and side-firing subwoofers |
| Construction | Sculpted aluminium frame, patented IsoAcoustics isolators |
| Colour | Black |
| Includes | 1 x Aperta Sub, 4 x carpet discs |
Specifications as published by IsoAcoustics.
What is in the box
- 1 x IsoAcoustics Aperta Sub stand
- 4 x carpet discs
Questions people ask
Can it be used on carpet?
Yes. IsoAcoustics says each stand includes 4 carpet discs for use with thick pile carpet.
How do I install it?
IsoAcoustics says the stand comes ready to use. Place it under your subwoofer.
Does it have height or tilt adjustment?
No. IsoAcoustics says the Aperta Sub has no height or tilt adjustment.
Which way should the logo face?
IsoAcoustics recommends the logo facing forward, in the same direction as the driver. For side-firing subwoofers, turn the stand sideways so the isolators line up with the driver.
How do I know if it fits my subwoofer?
IsoAcoustics recommends measuring the stand against the flat bottom of your subwoofer. The subwoofer should be the same size or larger, and a few inches of overhang each side is acceptable.