Sonosub! - AVS Forum
Forum Jump: 
Closed Thread
 
Thread Tools
post #1 of 44 Old 02-22-2006, 11:32 AM - Thread Starter
AVS Special Member
 
jonnythan's Avatar
 
Join Date: Jan 2006
Posts: 2,966
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 17
I just placed my order at Parts Express for the Dayton 12" HiFi driver and their 250W plate amp.

I'm going to pick up an 18" sonotube and some MDF once all the components come in.

The amp will be mounted to the outside of the sonotube, and I'm going to use three 36" long 1/2" threaded rods to hold the thing together (not unlike my Flexy rack).

There'll be a 3" double-flared port on the top.

I'm covering the whole thing in black automotive carpet.

I will be taking pics of the construction process and post them as I go along :)
jonnythan is offline  
Sponsored Links
Advertisement
 
post #2 of 44 Old 02-22-2006, 12:48 PM
AVS Special Member
 
crackyflipside's Avatar
 
Join Date: Oct 2005
Location: Miami, FL
Posts: 2,186
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 10
Sounds good.

Any idea on how you will be bracing the inside or will it just be the tube?
crackyflipside is offline  
post #3 of 44 Old 02-22-2006, 12:49 PM - Thread Starter
AVS Special Member
 
jonnythan's Avatar
 
Join Date: Jan 2006
Posts: 2,966
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 17
Quote:
Originally Posted by crackyflipside
Sounds good.

Any idea on how you will be bracing the inside or will it just be the tube?
It'll just be the tube. Considering the cylindrical shape I don't think bracing will be necessary.

The endcaps will be held together by 3 steel rods, though.
jonnythan is offline  
post #4 of 44 Old 02-22-2006, 12:51 PM
AVS Special Member
 
SteveCallas's Avatar
 
Join Date: Jun 2004
Posts: 6,714
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
Liked: 17
Yeah, you don't need bracing, and you actually won't need the threaded rods either, but if you are set on using it, go for it.
SteveCallas is offline  
post #5 of 44 Old 02-22-2006, 12:57 PM - Thread Starter
AVS Special Member
 
jonnythan's Avatar
 
Join Date: Jan 2006
Posts: 2,966
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 17
Quote:
Originally Posted by SteveCallas
Yeah, you don't need bracing, and you actually won't need the threaded rods either, but if you are set on using it, go for it.
I'm not at all set on using them. I read in several places that it's virtually impossible to get the end caps to seal and stay sealed with just glue, and that some sort of positive pressure system must be put in place to hold them in properly.

The threaded rods, just like a Flexy rack, seemed like a good idea.. they would hold the end caps together as well as act as a stand to keep it a few inches off the ground. I will be using a base plate of MDF as well.

Do you have a better suggestion? If glue alone will work, then I'll just use glue and screw in a few pieces of 5/8" or 3/4" wooden dowels as stands.
jonnythan is offline  
post #6 of 44 Old 02-22-2006, 12:59 PM - Thread Starter
AVS Special Member
 
jonnythan's Avatar
 
Join Date: Jan 2006
Posts: 2,966
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 17
Just saw the sub in your sig.

Holy @#%@^. Is that actually a sub, or is it really a place to store bodies where the cops will never think to look?

How are your end caps attached?
jonnythan is offline  
post #7 of 44 Old 02-22-2006, 02:20 PM
AVS Special Member
 
SteveCallas's Avatar
 
Join Date: Jun 2004
Posts: 6,714
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
Liked: 17
Heck, I say you don't even need glue. If you start with the end caps being slightly (like 1/8") larger in diameter then the tube, then trim away material until it just barely fits in, then force it in place, you will have an air tight seal that is very strong. If you were going sealed, then you might want to take a few extra precautions, but my seals are very tight (air tight) using nothing. I put the bottom cap in first and then caulked the seem where the MDF meets the tube on the inside just to be extra safe. The top cap is just forced into place.

How many layers of MDF were you planning on making your endcaps out of?
SteveCallas is offline  
post #8 of 44 Old 02-22-2006, 02:55 PM - Thread Starter
AVS Special Member
 
jonnythan's Avatar
 
Join Date: Jan 2006
Posts: 2,966
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 17
Two layers each, giving 1.5" end caps.
jonnythan is offline  
post #9 of 44 Old 02-22-2006, 03:13 PM
Senior Member
 
BlakeN's Avatar
 
Join Date: Aug 2005
Posts: 276
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 10
Good to see another person going the sono route :) I am in the middle of building mine too.

20" sonotube with an Avalanche 15" @ 7.5^3 ft tuned to 20hz using 2x4" flared ports and a 500w dayton amp.

I am folowing these instructions. http://home.comcast.net/~audio-worx/...PetesTube.html

Mine will just be about 3-4" longer. I am also going to build the amp into the tube. When I get home I will post the plans up for the amp mount.
BlakeN is offline  
post #10 of 44 Old 02-22-2006, 03:17 PM
Newbie
 
Chunk Lite's Avatar
 
Join Date: Nov 2005
Location: MD
Posts: 12
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 10
I too am in the middle of building two sonosubs and used liquid nails and caulking to seal the endcaps. Worked great for me, wouldn't think any bracing would be necessary.
Chunk Lite is offline  
post #11 of 44 Old 02-22-2006, 06:05 PM - Thread Starter
AVS Special Member
 
jonnythan's Avatar
 
Join Date: Jan 2006
Posts: 2,966
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 17
That's great to know. Thanks for the advice!!

I'll take lots of pics and document everything... it's going to double as a scratching post for the kitties ;)
jonnythan is offline  
post #12 of 44 Old 02-22-2006, 07:15 PM
Senior Member
 
BlakeN's Avatar
 
Join Date: Aug 2005
Posts: 276
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 10
This is where I got the plans for my amp mount. You have to poke arround a bit because the orriginal webpage isnt up any more so you have to look at it on archive.org

http://web.archive.org/web/200503130...om.au/wcallen/
BlakeN is offline  
post #13 of 44 Old 02-23-2006, 11:22 AM - Thread Starter
AVS Special Member
 
jonnythan's Avatar
 
Join Date: Jan 2006
Posts: 2,966
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 17
So the local building supply houses want almost $40 for a sonotube, but I found these:

http://www.psp-inc.com/psp-inc.com/p...e%20Tubes.html

I've contacted them and they want $18 for one of the 36" tubes. Will require no cutting, since it will give me 4cf of internal volume after I put the end caps in, and they look quite well constructed.

Score!

Anyone ever seen one of these Bascore tubes before?
jonnythan is offline  
post #14 of 44 Old 02-23-2006, 11:36 AM
AVS Special Member
 
SteveCallas's Avatar
 
Join Date: Jun 2004
Posts: 6,714
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
Liked: 17
Does it come in a box? :confused:

$18 for an 18" diameter tube that is 36" long is a decent price if you only plan on building one, but I'd wager you will want to build another down the road :)
SteveCallas is offline  
post #15 of 44 Old 02-23-2006, 11:41 AM - Thread Starter
AVS Special Member
 
jonnythan's Avatar
 
Join Date: Jan 2006
Posts: 2,966
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 17
It's actually a 16" diameter tube, but the length works out just perfectly. Previous plan was 18" x 29.5".

This thing by itself is going to cost more than the rest of my speakers combined... and if it's not enough for a 1600 ft^3 room, I think I'll just give up ;)

Besides, the rest of my money is currently being saved up for that 50" plasma..
jonnythan is offline  
post #16 of 44 Old 02-23-2006, 11:50 AM
Member
 
Ben M.'s Avatar
 
Join Date: Feb 2006
Location: Maryland
Posts: 20
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 10
I assume you have to have these tubes shipped to your place? How much will that run? And how long until you receive it? If it was me I'd want to run down to the closest construction supply place and start building immediately.

[quote]but I'd wager you will want to build another down the road

I'm with Steve on this one. I haven't even finished my first tube and I'm already building a second. This stuff is addictive.
Ben M. is offline  
post #17 of 44 Old 02-23-2006, 11:52 AM - Thread Starter
AVS Special Member
 
jonnythan's Avatar
 
Join Date: Jan 2006
Posts: 2,966
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 17
I'm waiting on them for a shipping quote. After shipping I'm still sure it will be cheaper than local, plus it's black, requires no cutting, and appears to be much higher quality. I'll let you know a final price.

I'd love to start building immediately, but the plate amp I ordered is out of stock til 3/3 anyway, so there's not much of a rush..
jonnythan is offline  
post #18 of 44 Old 02-23-2006, 12:03 PM - Thread Starter
AVS Special Member
 
jonnythan's Avatar
 
Join Date: Jan 2006
Posts: 2,966
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 17
Actually, speaking of amps... are there any good, inexpensive (<$150) separate amps that don't need to be mounted to the box like the typical plate amplifier? That looks like it would be the hardest part, and I have no problem putting some type of separate amp in the equipment rack and running speaker wire to the sub..
jonnythan is offline  
post #19 of 44 Old 02-23-2006, 12:34 PM
Member
 
Ben M.'s Avatar
 
Join Date: Feb 2006
Location: Maryland
Posts: 20
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 10
I went the Pro amp route myself after looking at mounting a plate amp to my first sonosub. I purchased a Behringer ep2500 and will end up running 3 subs (2 enclosures) off this one amp.

Look at the Nady XA-1100, it's around $130 and up. I don't have any personal experience with this amp, others do I'm sure. You will have to put up with the usual pro amp downsides such as noise and such, but I think it's worth it.
Ben M. is offline  
post #20 of 44 Old 02-24-2006, 05:07 PM - Thread Starter
AVS Special Member
 
jonnythan's Avatar
 
Join Date: Jan 2006
Posts: 2,966
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 17
Holy !$%!#%

http://jonnythan.com/woofer.jpg

Woofer in old sub.... vs the Dayton that just came in.

I'm kinda scared.


BTW, shipping on the Bascore tube was $20, which made it roughly equal to the local sonotube, so I pulled the trigger. It ships Monday.
jonnythan is offline  
post #21 of 44 Old 02-24-2006, 05:50 PM
AVS Special Member
 
Jack Gilvey's Avatar
 
Join Date: Jan 2000
Location: Jersey,USA
Posts: 6,209
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 11
Now that's a good-lookin' driver.

Quote:
Actually, speaking of amps... are there any good, inexpensive (<$150) separate amps that don't need to be mounted to the box like the typical plate amplifier?
You could always just make a little box for the amp.

Jack Gilvey
SVS Customer Service

Jack Gilvey is offline  
post #22 of 44 Old 02-24-2006, 07:23 PM - Thread Starter
AVS Special Member
 
jonnythan's Avatar
 
Join Date: Jan 2006
Posts: 2,966
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 17
Quote:
Originally Posted by Jack Gilvey
You could always just make a little box for the amp.
Ooh, good idea. Thanks.
jonnythan is offline  
post #23 of 44 Old 02-26-2006, 06:41 PM
Senior Member
 
Star Hawk's Avatar
 
Join Date: Feb 2006
Posts: 207
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 12
Quote:
Originally Posted by jonnythan
Just saw the sub in your sig.

Holy @#%@^. Is that actually a sub, or is it really a place to store bodies where the cops will never think to look?

How are your end caps attached?
Hey, you can look through them too. About 20 years ago sonotubes were used to make Dobsonian telescopes aka light buckets. The one I made was 20 in. diameter and over 100 in. long and held a 18 in, 45 lb. mirror for jaw dropping views of faint deep sky objects. Nice, but very heavy. Later in the 90's I converted it to a truss style Dob and now I can set it up by myself instead of taking two people. A few years ago I finally hauled the huge tube to the dump. The 20 in. diameter tube is at least 1/2 in thick, and would have made an excellent sub enclosure for a 15 to 18 in. subwoofer. One drawback of sonotubes or Huges tubes (from Huges Supply where I got mine) is finishing them especially if they are going to sit in your living room. I used to build radio control airplanes. I covered my telescope tube with monocote the same stuff I used to cover my airplanes. Monocote can then be painted but sonotube cannot because it has a waxy covering on the outside. I found no paint that would permanently adhere to it. Monocote was one solution to getting a nice looking finish. I am sorry I got carried away with this post. It brought back some fond memories. I thought I would add to the thread how to make a sonotube look nicer for your HT room. Monocote is a quick and easy way to do it. Now, if only I had kept that tube.
Star Hawk is offline  
post #24 of 44 Old 02-27-2006, 06:50 AM
AVS Special Member
 
SteveCallas's Avatar
 
Join Date: Jun 2004
Posts: 6,714
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
Liked: 17
A fabric sock made of stretchy material makes it very easy to finish a sonotube. I would think that any kind of painting or coating would show the ridges.
SteveCallas is offline  
post #25 of 44 Old 02-27-2006, 06:52 AM - Thread Starter
AVS Special Member
 
jonnythan's Avatar
 
Join Date: Jan 2006
Posts: 2,966
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 17
Automotive carpet.

Doubles as a scratching post for the cats ;)
jonnythan is offline  
post #26 of 44 Old 02-27-2006, 09:00 AM
Advanced Member
 
V.X.Donique's Avatar
 
Join Date: Jan 2004
Location: Neuropolis, Brainland
Posts: 976
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 4 Post(s)
Liked: 15
So many options, it's great ;)

Parts Express Carpet Selection

V.X.Donique
Sensory Sciences
Creator of the AVScience DIY Speakers and Subwoofers Forum
http://www.avsforum.com/t/627113/diy-subwoofer-section
V.X.Donique is online now  
post #27 of 44 Old 02-27-2006, 09:26 AM - Thread Starter
AVS Special Member
 
jonnythan's Avatar
 
Join Date: Jan 2006
Posts: 2,966
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 17
I already have the carpet, guys ;)
jonnythan is offline  
post #28 of 44 Old 02-27-2006, 10:40 AM
AVS Special Member
 
chasw98's Avatar
 
Join Date: Dec 2004
Location: Margate, FL
Posts: 1,085
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 14
Quote:
Originally Posted by SteveCallas
Heck, I say you don't even need glue. If you start with the end caps being slightly (like 1/8") larger in diameter then the tube, then trim away material until it just barely fits in, then force it in place, you will have an air tight seal that is very strong. If you were going sealed, then you might want to take a few extra precautions, but my seals are very tight (air tight) using nothing. I put the bottom cap in first and then caulked the seem where the MDF meets the tube on the inside just to be extra safe. The top cap is just forced into place.

How many layers of MDF were you planning on making your endcaps out of?
My sub is put together using the Callas method also. But there is one key point he did not tell me until after I put it together. As you put the MDF end caps in and out of the sonotube, the sonotube gets frayed. Steve suggested taping over the ends so that you have a better surface to use for fitting the caps into. But you must tape the ends before applying your covering to the outside! You will be fitting them more than once. I ended up liquid nailing the top plate on mine and leaving the bottom plate as a pressure fit for easy access to the driver. I have no leakage.

Chuck
chasw98 is offline  
post #29 of 44 Old 02-27-2006, 05:51 PM
AVS Special Member
 
SteveCallas's Avatar
 
Join Date: Jun 2004
Posts: 6,714
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
Liked: 17
Yes, I found that if your wrap over the edges with several pieces of tape, from inside to outside, it keeps the edge of the tube in perfect shape and it won't allow it to fray. If DrJon is reading this, perhaps he can post a picture of it, because he took a picture while he was doing it to his sub - I don't have that picture on this computer.

Quote:
My sub is put together using the Callas method also
Lol, I am but a name on a list of many who have probably done and been doing it with no glue or threaded rod.
SteveCallas is offline  
post #30 of 44 Old 02-27-2006, 07:31 PM
Senior Member
 
Doc Holiday's Avatar
 
Join Date: Jun 2005
Posts: 262
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 10
All this talk about the SonoSub, I need to get building mine.

That big 24in empty tube in the corner is just calling my name to be turned in to a house shaking device.
Doc Holiday is offline  
Closed Thread DIY Speakers and Subs

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