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Auralex SubDude-II™

Subwoofer isolation platform

Item # 927SBDDE2

When your room's floor, walls, and ceiling vibrate along with your subwoofer, they're adding unwanted resonance and...

When your room's floor, walls, and ceiling vibrate along with your subwoofer, they're adding unwanted resonance and...

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Item # 927SBDDE2

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About the Auralex SubDude-II™

Dave Bar

Isolate your subwoofer for better bass

When your room's floor, walls, and ceiling vibrate along with your subwoofer, they're adding unwanted resonance and coloration to the sound of your bass. How can you stop it? Just place an Auralex SubDude-II under your subwoofer for an instant sonic upgrade.
Auralex SubDude-II

The Auralex SubDude-II isolation platform effectively decouples your subwoofer from the floor for cleaner, tighter bass.

Isolate your subwoofer for better bass

When your room's floor, walls, and ceiling vibrate along with your subwoofer, they're adding unwanted resonance and coloration to the sound of your bass. How can you stop it? Just place an Auralex SubDude-II under your subwoofer for an instant sonic upgrade.

This stylish sound-absorbing sandwich of velour-covered MDF and Auralex's proprietary sound isolation foam helps prevent sound coming from your sub from being transferred through the floor. You'll get cleaner, tighter bass, reduced coloration, and maybe even a thank you note from your downstairs neighbors! 

The SubDude-II's 15" x 15" platform dimension is sized perfectly for small-to-medium-sized subwoofers in home theaters, hi-fi systems, or recording studios.


Product highlights:

  • isolation platform for subwoofers
  • decouples subwoofer from the floor to reduce structural vibration and sound transmission to neighboring spaces
  • decreases resonance and sound coloration for tighter, clearer bass
  • velour-covered 3/4" MDF base over 1" isolation foam construction
  • 15"W x 1-3/4"H x 15"D
  • supports subwoofers up to 200 lbs.
  • warranty: 60 days
  • Our 60-day money-back guarantee
  • MFR # SubDude-II

What's in the box:

  • Subwoofer isolation platform
  • User Guide

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Auralex SubDude-II™ reviews

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More details on the Auralex SubDude-II™

Mark G.

Product Research


Subwoofer Isolation Platform: The Auralex SubDude-II is a low-profile subwoofer isolation platform and is perfect for small subwoofers in home theaters and hi-fi systems. The SubDude-II subwoofer isolation platform utilizes Auralex technology and carefully chosen combination of specialized materials to instantly diminish structural vibrations, resulting in cleaner and tighter bass, reduced coloration and a more accurate low-frequency response.

Sound Improvements: The SubDude-II is an incredibly effective isolation platform that instantly improves your subwoofer's performance. This carefully engineered solution allows the true sound of your sub to come through by negating resonance artifacts.

  • Dramatically reduces structural vibrations through walls, floors & ceilings.
  • Preserves the accuracy of the original audio track.
  • Tightens bass and increases low-end clarity.

Construction: The Auralex SubDude-II features a functionally inert 3/4", velour-covered, MDF platform supported by a 1" base layer of sturdy Auralex Platfoam that is an effective isolation boundary to decouple the subwoofer from the floor underneath. This combination of materials dramatically diminishes structural vibrations and resonances, resulting in reduced coloration, tighter bass and a perceived extension of the subwoofer's low-frequency response.

Compatibility: The Auralex SubDude-II is great for home theater & hi-fi small- to medium-size subwoofers weighing up to 200lbs. The SubDude-II measures 15.0625" (w) x 1.8125" (h) x 15.0625" (d).

The Auralex Guarantee: All Auralex foam products have been specially engineered for maximum acoustical performance, increased longevity, flame retardancy, and great looking aesthetics. 

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Customer Q&A

5 questions already asked

Can this isolation pad be used with a down firing subwoofer?
[ CALVIN  Jan 01, 2021 ]
6 answers
Yes, it can. I purchased this after I upgraded my loudspeakers and sub. The sub I went with (Sonus Faber) has down and front-firing components. The platform works really well. I have hardwood floors and even a moderate amount of bass was causing a "rattle" of anything in the room that wasn't fixed down. After I placed the platform down everything was resolved with excellent sound. I'm very pleased.
[ MICHAEL  Jan 03, 2021 ]
Yes it can.
[ FRANK  Jan 02, 2021 ]
Yes I have a 15" and it's downfiring
[ KARL  Jan 01, 2021 ]
Yes , I have 2 Klipsch down firing subs and they work great .
[ DALE  Jan 01, 2021 ]
Yes. I use it in my living room with a down firing Martin Logan Dynamo 1000 placed near windows. Used to have significant rattling of the windows but now just clean bass with this isolation pad. Has worked wonders for me.
[ Greg  Jan 01, 2021 ]
Yes, definitely. If you have any doubts, contact Auralex directly. Their customer service is very good.
[ JOHN  Jan 01, 2021 ]
Could this be used on top of a subwoofer to isolate vibrations from a receiver to placed there?
[ Jay  Oct 16, 2019 ]
3 answers
Not sure. Mine's under my subwoofer. You might want to log onto Crutchfield and chat with an expert.
[ JOHN  Oct 18, 2019 ]
I suppose this would work to a degree. I would be careful about it cooking under a receiver as they tend to dissipate heat from the bottom. If you do want to go this route you can add some low priced footers/pucks to your receivers feet.
[ john  Oct 17, 2019 ]
Probably, might work better with one under and another over. I will say that second to adding diffusion these made the biggest sonic improvement in my home theatre.
[ Edward L.  Oct 16, 2019 ]
except for the size, is there any difference between this and their turntable isolation pad?
[ MICHAEL  Aug 24, 2018 ]
1 answer
I have not used their turntable pad but my guess would be that the subwoofer pad is built to handle more weight. I can tell you that it made a big difference in my system. When watching movies the windows, and other things, would sometimes rattle. After putting the sub on the pad all the energy is now going to sound. The lows fill the entire soundstage. I recommend giving it a try. Good luck.
[ Charles  Aug 24, 2018 ]
I have a Definitive technology supercube 1. I was wondering what size of Auralex sub pad that you would recommend? The sub is 14.25"x 14.25". It is currently on carpet with concrete underneath. The room is acoustically treated and at very low LFE frequencies I get some vibrations on walls. The room is about 20x13. Thanks for your input
[ BRIAN  Jun 24, 2017 ]
3 answers
Hey Brian, I currently have the SubDude-II which measures 15" square. It works really well with my Audioengine S8 Subwoofer. However, I listen to mostly classical and jazz and rarely drive the sub hard. Your Def Tech Supercube measures 14.25 square. So, it should fit fine although a little bit tight. However, the purpose of the SubDude, at least in my mind, is to elevate the sub off the carpet and provide a uniform surface density for the subwoofer to play off of so as to clarify and tighten the bass content of the music . Obviously, the SubDude HT would be a lot larger but I don't think it would be significantly better at achieving the purposes I mentioned. So, I would start with the smaller SubDude-II and see how it sounds with your setup. If not, you always have the option of returning it to Crutchfield for a refund or exchange for the larger one. One last thought is to perhaps experiment with where you have your sub placed. Moving it one way or the other around your listening area can have great effect on eliminating resonance. Good luck!
[ ROBERT  Jun 25, 2017 ]
The Sub Dude-II should work fine.
[ MICHAEL  Jun 25, 2017 ]
Hi Brian, I have a very similar size sub and I purchased the Auralex SubDude-II and it fits on this perfectly. The Pad is slightly over 15 x 15 so it will fit your supercube. I can say that this pad did a great job stopping the issues I had prior with my sub on the floor then on a stand I built for it, the pad seems to work similar to that of what dyno-mat would do in a car and takes out ratle and other similar issues. The product code for the Pad is 927SBDDE2. Thank you
[ Jason  Jun 25, 2017 ]
I have 2 REL T9i subs hooked up to a top of the line Eminent Technology surround system in my basement on top of carpet, and have some wall/furniture shaking when it gets a bit loud. The other reviewers talk about improvements when subs are on wood or non-carpeted floors. Could I use these on my carpeted basement (cement floor underneath) to reduce the wall and furniture vibrations?
[ paul  Apr 19, 2017 ]
5 answers
From what you describe about the shaking of walls and furniture, I'm a bit reluctant to say that the SubDudes will alleviate your problems. They work well for me but I don't play my music at ear-bleeding levels. What the will do, however, is allow your RELs to play as evenly and precisely as they were engineered. They elevate the subs off the floor to allow the bass sounds to radiate out rather than to get pushed down and stuck in the carpet or floor. So, given Crutchfield's wonderful return policy, give them a try and see what you think. Best of luck!
[ ROBERT  Apr 21, 2017 ]
Yes you can, and it will tighten up the bass too. You can also try to pull the sub(s) away from the wall or corner,
[ MICHAEL  Apr 21, 2017 ]
Hi Paul...I have a REL t7i on Auralex SubDude-II which is on carpet. It's in a second floor apt. I believe it helps with the vibrations going to the first floor. I don't have any issues with wall/furniture shaking. I can definitely feel the low end in my home theater set-up when playing blu-rays but that's the way you want it to be...but not rattle the furniture. Your 2 t9i subs have more power than mine but I do think the isolation platforms will improve the shaking you're experiencing!
[ LYNN  Apr 21, 2017 ]
I have a Polk 12" 150 watt sitting on mine in a carpeted room on the second floor of my home. It does a great job of dampening vibrations while providing excellent, driving lows. It's part of a 7.1 surround system connected to an Onkyo TX-NR 757 receiver. I've been quite pleased with the SubDude II. I say go for it. You never know until you try. Good luck!
[ Robert  Apr 21, 2017 ]
I use this on my hardwood floor and it definitely helps send the sound out the speaker and not through the floors. My windows rattled before and now they don't, I would definitely recommend trying them. My experience has been good with using this under my sub!
[ SEAN  Apr 21, 2017 ]

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