Auralex Subdude Owners Thread - Page 2 - AVS Forum
Forum Jump: 
Reply
 
Thread Tools
post #31 of 1318 Old 02-14-2006, 12:28 PM
Advanced Member
 
Static Wick's Avatar
 
Join Date: Sep 2001
Location: VA
Posts: 553
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 16
Has anyone tried one of these on concrete?
Static Wick is offline  
Sponsored Links
Advertisement
 
post #32 of 1318 Old 02-14-2006, 12:33 PM
Member
 
rodal's Avatar
 
Join Date: Apr 2005
Location: SO CAL
Posts: 103
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 10
Quote:
Originally Posted by Capfacsurf View Post


I have never gotten more bang (slam) for the buck than what I got from the Subdude. Freakin' amazing improvement in sound.

I have a Subdude and when I added the Velodyne DD-12 to it that was a big improvement.
rodal is offline  
post #33 of 1318 Old 02-14-2006, 12:39 PM - Thread Starter
Advanced Member
 
Capfacsurf's Avatar
 
Join Date: Nov 2004
Location: Malibu / Nags Head
Posts: 742
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 10
Ha Ha!

With my system, In my room, to my ears......
Capfacsurf is offline  
post #34 of 1318 Old 02-14-2006, 12:52 PM
AVS Addicted Member
 
Kal Rubinson's Avatar
 
Join Date: Mar 2004
Location: NYC + Connecticut
Posts: 28,428
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 61 Post(s)
Liked: 126
Quote:
Originally Posted by Static Wick View Post

Has anyone tried one of these on concrete?

I would not think they would be as useful on concrete since their primary function is to physically isolate the sub from a live, resonant wood (or other) surface. Since concrete won't vibrate sympathetically, just a stable support (feet, spikes) should be fine.

Kal

Kal Rubinson

"Music in the Round"
Senior Contributing Editor, Stereophile
http://www.stereophile.com/category/music-round

Kal Rubinson is offline  
post #35 of 1318 Old 02-14-2006, 12:54 PM
Advanced Member
 
Static Wick's Avatar
 
Join Date: Sep 2001
Location: VA
Posts: 553
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 16
Kal, Thanks.
Static Wick is offline  
post #36 of 1318 Old 02-14-2006, 01:15 PM
AVS Special Member
 
Rysa4's Avatar
 
Join Date: Mar 2003
Location: Houston, Texas
Posts: 1,909
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 10
Quote:
Originally Posted by Kal Rubinson View Post

Here's my take:
http://www.stereophile.com/musicinth...itr/index.html

Kal

Hey Kal, you and the author have the same name! Seriously, I use this product ( The Gramma) and really do enjoy the result .
Rysa4 is offline  
post #37 of 1318 Old 02-14-2006, 04:19 PM
Advanced Member
 
Steve Ozmai's Avatar
 
Join Date: Jul 2001
Location: Boulder, Colorado
Posts: 552
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 10
I'd have to agree with everything said here. We started carrying these about 3 months ago and the feedback from our customers (using them with everything from our UFW-12's to SVS PB's to Velodyne DD's, etc...) has been nothing short of amazing...well worth the $50-60.

Steve Ozmai
OZ Home Theater, LLC
Steve Ozmai is offline  
post #38 of 1318 Old 02-14-2006, 04:44 PM - Thread Starter
Advanced Member
 
Capfacsurf's Avatar
 
Join Date: Nov 2004
Location: Malibu / Nags Head
Posts: 742
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 10
Even MORE amazing for $40-$50.

Or would that be LESS amazing?

With my system, In my room, to my ears......
Capfacsurf is offline  
post #39 of 1318 Old 02-14-2006, 04:49 PM
 
craigsub's Avatar
 
Join Date: Jan 2004
Posts: 11,328
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 11
Quote:
Originally Posted by Kal Rubinson View Post

I would not think they would be as useful on concrete since their primary function is to physically isolate the sub from a live, resonant wood (or other) surface. Since concrete won't vibrate sympathetically, just a stable support (feet, spikes) should be fine.

Kal

This is correct - we tried one in our basement theater, and there really is nothing to gain.
craigsub is offline  
post #40 of 1318 Old 02-14-2006, 05:02 PM
Advanced Member
 
kweezr's Avatar
 
Join Date: Apr 2003
Location: Fairfield, California
Posts: 998
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 10
Quote:
Originally Posted by Kal Rubinson View Post

I would not think they would be as useful on concrete since their primary function is to physically isolate the sub from a live, resonant wood (or other) surface. Since concrete won't vibrate sympathetically, just a stable support (feet, spikes) should be fine.

Kal

I'm on a slab with hardwood and worked great here.
kweezr is offline  
post #41 of 1318 Old 02-14-2006, 11:36 PM
Advanced Member
 
oliverlim's Avatar
 
Join Date: Feb 2002
Location: Singapore
Posts: 591
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 12
Quote:
Originally Posted by Kal Rubinson View Post

I would not think they would be as useful on concrete since their primary function is to physically isolate the sub from a live, resonant wood (or other) surface. Since concrete won't vibrate sympathetically, just a stable support (feet, spikes) should be fine.

Kal

Not true Kal =p

Over here in Singapore, almost all of us live in concrete boxes =p and almost all who tried the Gramma notice that it did seem to make the Sub less boomy. For some there was totally no difference. For me, I did seem to lose that last boomyness. Also with spikes or cones under the sub direct to the concrete floor, my floor was vibrating slightly. Very slight during intense bass movies. But with the gramma, the floor vibrations are almost gone. But then my sofa still vibrates =p

Oliver
oliverlim is offline  
post #42 of 1318 Old 02-15-2006, 02:06 AM
AVS Special Member
 
MUCHO's Avatar
 
Join Date: Sep 2005
Location: Southern California
Posts: 1,147
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 10
Hooked on Subdude worked for me!

Seriously - HUGE difference in rattles and shakes in the walls and floor. (Third story loft)
MUCHO is offline  
post #43 of 1318 Old 02-15-2006, 07:20 AM
AVS Special Member
 
---k---'s Avatar
 
Join Date: Jan 2004
Location: Chicagoland
Posts: 1,492
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 10
Quote:
Originally Posted by kweezr View Post

I'm on a slab with hardwood and worked great here.

The hardwood is likely not bonded to the concrete, so you still get vibration in the floor, which causes vibration everywhere. I could see the benifit of using the Subdude on a hardwood floor over concrete.

The subdude is made to absorb vibrations from the sub. So that the bass you hear and feel is from the sub, not the vibrations of the floor, or the walls coupled to the floor. If you have carpet over concrete, spikes will be fine. You can't vibrate a concrete slab! If you have any kind of elevated floor, I can imagine that the Subdude could be benifical.

EDIT: When I said concrete slab, I was referring to a concrete slab-on-grade, not an elevated concrete slab. As indicated by the comment: " If you have any kind of elevated floor, I can imagine that the Subdude could be benifical."
---k--- is offline  
post #44 of 1318 Old 02-15-2006, 08:05 AM
Advanced Member
 
kweezr's Avatar
 
Join Date: Apr 2003
Location: Fairfield, California
Posts: 998
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 10
Quote:
Originally Posted by ---k--- View Post

The hardwood is likely not bonded to the concrete, so you still get vibration in the floor, which causes vibration everywhere. I could see the benifit of using the Subdude on a hardwood floor over concrete.

The subdude is made to absorb vibrations from the sub. So that the bass you hear and feel is from the sub, not the vibrations of the floor, or the walls coupled to the floor. If you have carpet over concrete, spikes will be fine. You can't vibrate a concrete slab! If you have any kind of elevated floor, I can imagine that the Subdude could be benifical.

The wood is bonded to the concrete, my issue was with the sub vibrating then
migration under extreme listening. Tried the rubber feet supplied, but it didn't help.
kweezr is offline  
post #45 of 1318 Old 02-15-2006, 08:36 AM
AVS Addicted Member
 
Kal Rubinson's Avatar
 
Join Date: Mar 2004
Location: NYC + Connecticut
Posts: 28,428
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 61 Post(s)
Liked: 126
Quote:
Originally Posted by oliverlim View Post

Not true Kal =p

Over here in Singapore, almost all of us live in concrete boxes =p and almost all who tried the Gramma notice that it did seem to make the Sub less boomy. For some there was totally no difference. For me, I did seem to lose that last boomyness. Also with spikes or cones under the sub direct to the concrete floor, my floor was vibrating slightly. Very slight during intense bass movies. But with the gramma, the floor vibrations are almost gone. But then my sofa still vibrates =p

Oliver

How can a concrete slab vibrate?

Kal

Kal Rubinson

"Music in the Round"
Senior Contributing Editor, Stereophile
http://www.stereophile.com/category/music-round

Kal Rubinson is offline  
post #46 of 1318 Old 02-15-2006, 10:19 AM - Thread Starter
Advanced Member
 
Capfacsurf's Avatar
 
Join Date: Nov 2004
Location: Malibu / Nags Head
Posts: 742
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 10
It's called Plate Tectonics

With my system, In my room, to my ears......
Capfacsurf is offline  
post #47 of 1318 Old 02-15-2006, 11:02 AM
AVS Special Member
 
bsheldon's Avatar
 
Join Date: Jan 2006
Location: Saint Louis, MO
Posts: 1,007
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 10
thanks guys, very informative thread. i have harwood floors bonded to a concrete slab and was wondering if it would make sense to try one of these. I guess now it seems now I won't benefit much from it. I do have some rather obnoxious rattles but I think it is caused way more by sound pressure waves than any floor vibrating issues--My house is made from stone and concrete--no wood except for huge oak beams in the ceiling, real wood walls, no drywall--fully insualted. I guess the only way to fix the rattles is to bolt them down. My biggest problems are the bathroom at the other end of the house, the shower doors sound like they are going to fall apart and the fireplace--gotta love that bass. I guess bass traps are my only real solution? Not to change the subject.

Above all, enjoy the sound.
You gotta love the internet.
bsheldon is offline  
post #48 of 1318 Old 02-15-2006, 11:12 AM
AVS Addicted Member
 
Kal Rubinson's Avatar
 
Join Date: Mar 2004
Location: NYC + Connecticut
Posts: 28,428
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 61 Post(s)
Liked: 126
Quote:
Originally Posted by Capfacsurf View Post

It's called Plate Tectonics

Right and it would take a hell of a subwoofer to initiate.

Kal

Kal Rubinson

"Music in the Round"
Senior Contributing Editor, Stereophile
http://www.stereophile.com/category/music-round

Kal Rubinson is offline  
post #49 of 1318 Old 02-15-2006, 12:22 PM
AVS Special Member
 
---k---'s Avatar
 
Join Date: Jan 2004
Location: Chicagoland
Posts: 1,492
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 10
I'm confused by people saying that thier hardwood floors are bonded to the concrete slab. I have NEVER seen this done before. Wood will expand and contract due to temperature and humidity at a much differnt rate than concrete - especially concrete on grade, because of the cold soil side. If the hardwood is bonded/glued to the concrete, it will tear itself apart. It would also be wasteful and a pain to install that way; having to glue down each peice rather than just nailing it to the previous board. In fact, most of the hardwood and laminate floors (Pergo) installed today, on concrete or elevated is being placed on a slip sheet that allows it to float above the floor. This allows it to expand and contract freely. The slip sheet also acts as a dampner.

Are you guys with hardwood on concrete sure that it is bonded to the concrete?

Anyway, it doesn't matter.
---k--- is offline  
post #50 of 1318 Old 02-15-2006, 12:33 PM
Member
 
Jake04Goat's Avatar
 
Join Date: Aug 2005
Posts: 110
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 10
Our pergo floor sure isn't bonded. We're on the 5th floor. When my father-in-law laid it down, he put some thin padding between it and the concrete. The building's heater pipes run through the ceilings. Our floor heat is controlled by the pipes in the ceiling in the apartment below us. Plenty of expanding/contracting in different spots.
Jake04Goat is offline  
post #51 of 1318 Old 02-15-2006, 12:52 PM
Advanced Member
 
kweezr's Avatar
 
Join Date: Apr 2003
Location: Fairfield, California
Posts: 998
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 10
Quote:



Are you guys with hardwood on concrete sure that it is bonded to the concrete?

Absolutly sure, I was here during parts of the installation. There's a 1/2" expansion gap
where ever the flooring could possibly touch anything to allow for movement. Maybe it's a
California thing to install this way, it will definitly be a pain to remove.
kweezr is offline  
post #52 of 1318 Old 02-15-2006, 03:13 PM - Thread Starter
Advanced Member
 
Capfacsurf's Avatar
 
Join Date: Nov 2004
Location: Malibu / Nags Head
Posts: 742
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 10
Bsheldon,

For $50, what do you have to lose? I had rattles all over my home. I too thought they were caused by my subs' awsome sound pressure levels. But they were not. The Subdude did it for me. For $50, what do you have to lose?

With my system, In my room, to my ears......
Capfacsurf is offline  
post #53 of 1318 Old 02-15-2006, 05:22 PM
Advanced Member
 
JeffD2.'s Avatar
 
Join Date: Dec 2004
Location: Upstate New York
Posts: 995
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 10
Quote:
Originally Posted by bsheldon View Post

thanks guys, very informative thread. i have harwood floors bonded to a concrete slab and was wondering if it would make sense to try one of these. I guess now it seems now I won't benefit much from it. I do have some rather obnoxious rattles but I think it is caused way more by sound pressure waves than any floor vibrating issues--My house is made from stone and concrete--no wood except for huge oak beams in the ceiling, real wood walls, no drywall--fully insualted. I guess the only way to fix the rattles is to bolt them down. My biggest problems are the bathroom at the other end of the house, the shower doors sound like they are going to fall apart and the fireplace--gotta love that bass. I guess bass traps are my only real solution? Not to change the subject.

Blue Tac (spelling?) or similar product.

I recently diagnosed rattles in my room and used this removeable putty-like adhesive to secure picture frames, mirrors, even my CC was creating a buzz at high volumes, worked on that too.

I haven't spent any money on my system lately, Subdude might be next, perfect size for a PB10. Maybe wifey like that better than the patio blocks I'm using now .
JeffD2. is offline  
post #54 of 1318 Old 02-15-2006, 06:21 PM
Advanced Member
 
oliverlim's Avatar
 
Join Date: Feb 2002
Location: Singapore
Posts: 591
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 12
Quote:
Originally Posted by Kal Rubinson View Post

How can a concrete slab vibrate?

Kal


Beats me Kal. I thought it would not affect the walls as our walls, ceiling, floors are all fully concrete. But it is very obvious that the floors is vibrating very slightly when my ultra is on the floor directly instead of the gramma. Thinking about this, could it be because of the ceremic tiles? Although it is concrete, I have ceremic tiles over it.

Oliver
oliverlim is offline  
post #55 of 1318 Old 02-15-2006, 06:58 PM
AVS Addicted Member
 
Kal Rubinson's Avatar
 
Join Date: Mar 2004
Location: NYC + Connecticut
Posts: 28,428
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 61 Post(s)
Liked: 126
Quote:
Originally Posted by oliverlim View Post

Beats me Kal. I thought it would not affect the walls as our walls, ceiling, floors are all fully concrete. But it is very obvious that the floors is vibrating very slightly when my ultra is on the floor directly instead of the gramma. Thinking about this, could it be because of the ceremic tiles? Although it is concrete, I have ceremic tiles over it.
Oliver

I ain't a structural engineer, so I don't know. Might be the tiles or something else.

One of my systems is in a reinforced concrete building and it's like a rock. I can rattle the paintings and cabinets and even the multilayer sound-barrier windows, if I try, but the walls, floor and ceiling are inert.

Kal

Kal Rubinson

"Music in the Round"
Senior Contributing Editor, Stereophile
http://www.stereophile.com/category/music-round

Kal Rubinson is offline  
post #56 of 1318 Old 02-15-2006, 08:29 PM
Senior Member
 
Dundas's Avatar
 
Join Date: Dec 2004
Location: Hamilton, Canada
Posts: 242
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 11
Kal,
I wonder how 3 or 4 stacked SubDudes would compare to a SubTrap?
Dundas is offline  
post #57 of 1318 Old 02-15-2006, 09:04 PM
AVS Special Member
 
---k---'s Avatar
 
Join Date: Jan 2004
Location: Chicagoland
Posts: 1,492
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 10
Quote:
Originally Posted by Kal Rubinson View Post

I ain't a structural engineer,


oooh oooh ooh, I am! I am! Can I answer this question?



Actually I don't know the answer. I doubt it, but it could be that you are shifting the location of the sub just enough not to excite a room mode at your seat. You always see the anti-eq crowd talk about how eq only affects one seat, and if you move your mic a few inches the response is totally differnt. Which is correct. Sub postion works the same way, move a few inches and you get a differnt response.

Or maybe it is the cable elevator theory?
---k--- is offline  
post #58 of 1318 Old 02-15-2006, 11:36 PM
AVS Special Member
 
rynberg's Avatar
 
Join Date: Sep 2001
Location: California
Posts: 2,846
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 11
Hah! I WISH concrete floors couldn't vibrate!

Obviously, a thick concrete slab at grade will not transmit vibration very effectively, but a concrete floor at above grade will EASILY transmit vibration. If anyone wants a thorough explanation or real world cases, I would be happy to go into more detail, but I bill out at $180/hour..

I have a fairly flimsy wood floor in my listening room, I think I might give the Sub Dude a try.....it's actually pretty fairly priced for what it is.
rynberg is offline  
post #59 of 1318 Old 02-16-2006, 06:52 AM
AVS Special Member
 
Ktulu_1's Avatar
 
Join Date: Sep 2005
Location: Livonia, MI
Posts: 1,617
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 10
I ordered a Subdude from Sweetwater.com on Tuesday. It was at my door when I got home yesterday. Best free shipping ever!

I have a very "live" hardwood floor. I haven't spent much time with it, but it seems to work well.

Jeff

Gamertag - Ktulu1

"Assiduus usus uni rei deditus et ingenium et artem saepe vincit" - Cicero
Ktulu_1 is offline  
post #60 of 1318 Old 02-16-2006, 06:58 AM
Member
 
got_hp?'s Avatar
 
Join Date: Jan 2006
Location: Sarasota, FL
Posts: 78
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 10
Quote:
Originally Posted by Ktulu_1 View Post

I ordered a Subdude from Sweetwater.com on Tuesday. It was at my door when I got home yesterday. Best free shipping ever!


they are indeed a GREAT company to order products from, love the customer service.
got_hp? is offline  
Reply Subwoofers, Bass, and Transducers

Tags
Auralex , Auralex Subdude 15 X 15 X 2 Inch Isolation Riser

User Tag List

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page


Forum Jump: 

Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off