Decided: sonosub, Help! - Home Theater Forum and Systems - HomeTheaterShack.com

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post #1 of 54 Old 08-05-07, 07:02 PM Thread Starter
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Decided: sonosub, Help!

I am gonna build a sonosub! I have a crown cs2000 and a bfd on the way. I have steered away from ib
(wife wasn't happy about cutting the ceiling). So far i'm looking at 320L, 24" dia. 14.5 htz tune (per steve). any other suggestions? my driver, as of right now will be a css sdx15 or a tc2000 15. or would I be better with an 18". like ficar or mach5? if 15 is best, then is the sdx a better driver? both are the same price delivered until monday. I'm ordering tomorrow. what benefits would I get with an 18 over a 15? I know I know, I have alot of questions but I want to do it right.
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post #2 of 54 Old 08-05-07, 11:35 PM
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Re: Decided: sonosub, Help!

If you don't mind the price and enclosure size increase, I'd definitely go with an 18". You'd be going from 320 effective liters to 650 though, it's a respectable difference

As for the 15s, the SDX uses XBL^2, a low distortion motor technology, and should have lower inductance than the TC. Looking at Ilkka's measurements, the high inductance of the TC is its glaring weakpoint, causing a rise in distortion above 60hz.


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post #3 of 54 Old 08-06-07, 06:12 AM Thread Starter
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Re: Decided: sonosub, Help!

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If you don't mind the price and enclosure size increase, I'd definitely go with an 18". You'd be going from 320 effective liters to 650 though, it's a respectable difference

As for the 15s, the SDX uses XBL^2, a low distortion motor technology, and should have lower inductance than the TC. Looking at Ilkka's measurements, the high inductance of the TC is its glaring weakpoint, causing a rise in distortion above 60hz.
Wow! thats a big size difference steve. I think the 15 will suffice. Since I'm gonna have some sonotube left over, Maybe i'll add another 15 down the line. I guess the search for some sonotube is on!!!!
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post #4 of 54 Old 08-06-07, 11:11 AM Thread Starter
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Re: Decided: sonosub, Help!

Well, I found some sonotube by the foot here in houston(white cap const.). 7.50 a foot, 35 bucks for the 24 by 50"!
That'll work. Hey steve, I have a sheet of 3/4" birch plywood, would that work? This way I could stain it. Oh, the sdx15 is on it's way. I hope this thing will outdo my hsu 3.3 and svs 25-31.

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post #5 of 54 Old 08-06-07, 01:15 PM
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Re: Decided: sonosub, Help!

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I have a sheet of 3/4" birch plywood, would that work?
Some people think it's superior to MDF. Read this thread....

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post #6 of 54 Old 08-06-07, 04:49 PM Thread Starter
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Re: Decided: sonosub, Help!

Tube and port cut to size.

ce2000


I may get started on the endcaps tomorrow.
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post #7 of 54 Old 08-06-07, 07:09 PM
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Re: Decided: sonosub, Help!

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I hope this thing will outdo my hsu 3.3 and svs 25-31


No worries there. And yes, the BB will work fine.


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post #8 of 54 Old 08-07-07, 04:17 PM Thread Starter
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Re: Decided: sonosub, Help!

ok, is it possible for me to use 4" or 8" instead of 6? the only 6 i've been able to find here seems too heavy. It's around 20#. I did a cutout in the top recess and even though it is tight, I think that no matter what glue I use the port will come loose. the 6" i have is industrial grade pvc 1/4" thick. Is there a way to use this or should I rethink this? Home depot has 4" pvc and 8" sono but no 6".
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post #9 of 54 Old 08-07-07, 06:20 PM
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Re: Decided: sonosub, Help!

I'd use sonotube instead, it's much lighter and cheaper, and should be pretty easy to find. Cardboard is more damped than pvc too.


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post #10 of 54 Old 08-07-07, 09:10 PM Thread Starter
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Re: Decided: sonosub, Help!

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I'd use sonotube instead, it's much lighter and cheaper, and should be pretty easy to find. Cardboard is more damped than pvc too.
Problem is that I can't find 6" sonotube. Only 8". What other options do I have?
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