Sub Dude Rocks!!!

[Jeff R.]

Well I just finally got back from the holidays. I had my wife buy me a auralex sub dude plaform for my sub in my 2 channel system. I have been fighting vibrations in my gas fireplace, walls, etc.. The floor is hard wood in my living area and it was a struggle, I had rigged up some hot water pipe insulation that I had the sub legs sitting on that did help quite a bit.

I am very happy with the results. My sub is much cleaner that I have ever heard it sound and all the room vibration issues are gone.

I do think this is some thing anybody could make on their own. I am thinking about building some for my Swan towers that also sit on the wood floors.

One more upgrade I have been able to make to my system thanks to the help of all the knowledgable people on the site.

Thanks

Jeff R.

 

[XEagleDriver]

Congrats!

Like you, I bought one for the practical aspects, but was real pleased by the corresponding improvement in the sound of the bass!! A true win-win.

XEalgeDriver

 

[BoredSysAdmin]

Congrats!!

P.s: Is it just or you didn't expect the post to be about stands for subwoofer?

 

[MatthewB.]

I own two for my two HT systems and was more than surprised at how well they work especially when in use with hardwood floors and a big bay window. All rattlings are now gone. Probably cheapest and best investment one can make on their HT systems.

 

[djreef]

I used an oak chopping block suspended on moving coasters for my DIY version. Helluva lot better looking and much more solid. OH, and cost was $35. I think you can see them in the avatar pic.

DJ

 

[j_garcia]

I used an oak chopping block suspended on moving coasters for my DIY version. Helluva lot better looking and much more solid. OH, and cost was $35. I think you can see them in the avatar pic.

DJ

In this case, you don't want more solid.

Another believer! I said these things would help with pretty much any sub in any environment. I am extremely pleased with what my Gramma did for my sub.

 

[majorloser]

I have four Subdudes in my theater. I can attest how well they tame vibrations and rattles from a concrete slab floor.

 

[djreef]

In this case, you don't want more solid.

Another believer! I said these things would help with pretty much any sub in any environment. I am extremely pleased with what my Gramma did for my sub.

Why for? I thought the goal was decoupling and isolation from the room.

DJ

 

[j_garcia]

Why for? I thought the goal was decoupling and isolation from the room.

DJ

A solid object will transmit the vibration. I realize you have those feet beneath them, but that isn't quite the same thing. I've tried various things and I know some have even said to put your sub on a chunk of marble, but of all the things I've tried, the Gramma (foam) has made the largest and most noticeable difference in the sound. I have a concrete slab in my main HT room and I didn't think it would help but it really did, yet it sacrifices nothing in terms of output or sound quality.

 

[krzywica]

A solid object will transmit the vibration. I realize you have those feet beneath them, but that isn't quite the same thing. I've tried various things and I know some have even said to put your sub on a chunk of marble, but of all the things I've tried, the Gramma (foam) has made the largest and most noticeable difference in the sound. I have a concrete slab in my main HT room and I didn't think it would help but it really did, yet it sacrifices nothing in terms of output or sound quality.

I completely agree here. I have hard wood floors and no rug. This made a huge difference to isolate the vibrations and the reflections from my down firing sub.

 

[MidnightSensi]

Another happy customer.

I bought a pair of Gramma's at Guitar Center over the weekend, still need to post some pictures, but I bought them to try to isolate some rattling, and not only did it work, but it also improved the detail in the bass.

Also, I got lucky and they fit under my Danley subs as though they are made for them (within an inch!) which was a nice plus.

Regarding looks: For a dedicated theater I'd say go for it, for a living room where you can see the subwoofer I'd hesitate.

 

[djreef]

A solid object will transmit the vibration. I realize you have those feet beneath them, but that isn't quite the same thing. I've tried various things and I know some have even said to put your sub on a chunk of marble, but of all the things I've tried, the Gramma (foam) has made the largest and most noticeable difference in the sound. I have a concrete slab in my main HT room and I didn't think it would help but it really did, yet it sacrifices nothing in terms of output or sound quality.

Hell, and I figured with the concrete floor topped with the 3" berber carpet I was at an overkill point. Damn u J, now I gotta re-think again.

DJ

 

[krzywica]

Hell, and I figured with the concrete floor topped with the 3" berber carpet I was at an overkill point. Damn u J, now I gotta re-think again.

DJ

I would say with a cement floor you are even more susceptible to vibration transmissions as it transmits right into the ground. I have seen this many times before.

 

[Jeff R.]

Regarding looks: For a dedicated theater I'd say go for it, for a living room where you can see the subwoofer I'd hesitate.[/QUOTE]


You can always just recover the platform with a nice colored fabric of some sort. It should be pretty cheap and easy.......tie it in with you drapes in the room and your wife will think you are a decorating genius.

 

[djreef]

I would say with a cement floor you are even more susceptible to vibration transmissions as it transmits right into the ground. I have seen this many times before.

Yea, but this is a solid 12" slab + Berber + my homemade sub platform. Not to mention that I don't have any vibration issues in the listening room. I don't think I have any issues.....but then it was brought to my attention that I may have issues that I don't know about.

 

[Halon451]

Regarding looks: For a dedicated theater I'd say go for it, for a living room where you can see the subwoofer I'd hesitate.

You can always just recover the platform with a nice colored fabric of some sort. It should be pretty cheap and easy.......tie it in with you drapes in the room and your wife will think you are a decorating genius.[/QUOTE]

Well, after getting the wife to finally accept the monstrosity known as my sub, doubtful that a little creative fabric application will help much

After reading this thread and many other reviews regarding these risers, I too went up to my local Guitar Center and picked up a Gramma pad. Was going to get the Great Gramma, but decided the Gramma would work fine for my PB-12NSD. As it is, it hangs over the edges ever so slightly, which works out perfect, now it gives my sub the appearance that it's "floating" almost.

The effects were immediately noticeable, even before I ran MCACC again. Low end is much tighter, bass sounds controlled and pure, and the really low Hz notes are heard better than before. No idea why I didn't do this a lot sooner!!

 

[Jeff R.]

even better......you have a magic subwoofer that hovers in the room and puts out killer LFE.

 

[radridd]

Hell, and I figured with the concrete floor topped with the 3" berber carpet I was at an overkill point. Damn u J, now I gotta re-think again.

DJ

Yeah! Me too. Ok I thought about it , and ordered a gramma. Do you guys get commission on my purchases?

 

[Jeff R.]

I wish.......

 

[mike c]

After reading this thread and many other reviews regarding these risers, I too went up to my local Guitar Center and picked up a Gramma pad. Was going to get the Great Gramma, but decided the Gramma would work fine for my PB-12NSD. As it is, it hangs over the edges ever so slightly, which works out perfect, now it gives my sub the appearance that it's "floating" almost.

hi, i don't suppose you have a closer image of that PB12NSD on a gramma , would you?

TIA!