[knobert]

Hey guys,

I have been researching these for awhile and I have a few questions/problems.

Supplies:

Will a car audio sub work? There are plenty for sale and i was looking at a 12" Pioneer TS-W301R (4 ohm, good sensitivity, low nominal RMS) any other suggestions? Shipping to Edmonton CAnada can be expensive.

I am planning to use one output on my Rotel 1075 to power it (maybe two)
it can handle 4 ohm loads and is rated at 125 Watts at 8 ohm and ~200 at 4 ohm. |I may also use the stereo outputs from an old JVC amp.

I have a 17" Id by 4 foot tall Sonotube that was donated.

My two main problems are:

I have inputed th Pioneer specs into WinISD and i keep getting an error about somthing is not divisible by 0 ( I will be playing with it more tonight)

I am also playing with Sonosub.exe and having trouble with the port function.
I was thinking of using two 4 inch ports and trying to tune to at least 20 hz, everytime I change a value it gets goofy results

Any Ideas/ Suggestions?


P.S. I have posted this in AVS as well sorry for the duplication

 

[knobert]

Can i run those (IXL 12.2 or CSS 12) with my rotel?

 

[knobert]

ok now i am lost, which sub is the better of the three? I have locked in all of the variables to be the same (port size 6" length 30 " and box size 4.66cuft)

Also Sonosub is giving me different Hz tuning with the different subs, the pioneer actually tunes the lowest.

Have a look at the pdf

Please someone help!

 

[knobert]

hey mike thanks for the help!!

the pioneer

mms = 110.8 cms= 3.1x10E-4 fs= 28 RMS= 2.293 QMS= 8.12 Xmax= 8.8 BL= 8.67 Re= 3.0 no SD listed but the diamter is listed at 9.86 inches

 

[knobert]

Mike could you email those two project files so that I can have a look at how you are modeling them and I can quit bugging people for help

knobert hotmail com

 

[knobert]

I don't have them with me at the moment. The driver files are here:

http://www.hometheatershack.com/forums/diy-subwoofers/14410-downloadable-winisd-pro-files.html

No problem Mike, I think you convinced my to go with the Trio12. Hoping to finalize everything and start building this weekend. Stay warm in Chitek

 

[knobert]

Hey guys,

What are acceptable port speeds below 20 hz for a CSS trio12 5cuft box with 6" port 33 inches long

I can get the speed sown to 14m/s at 20 hz, but then it increases right after that to 16m/s at 18 hz.

 

[knobert]

I am still only going to use my 200 watts for power right now, so it s not awesome. I will upgrade later on. Whgat doyou think is an acceptable limit for air speed?

 

[knobert]

ok here is my project details

16 3/4" "ID sonotube 3' 11" tall tube - total hieght endcap to endcap = 48 inches
tuned to 20hz
CSS TRio12 sub (AWESOME)
6 inch sonotube flared (outside) port 34" long
still debating lining the inside or not

I am not going with a base plate in my design just legs
Power will be supplied by my Rotel for now, and the sub will be corner loaded

I am not sure how to post Sonosub on my thread thats what I have now

 

[knobert]

I was thinking of a BASH 500 in the future.
why the need for the HP filter with that much power vs no filter and my 200watt Rotel?

 

[knobert]

update

I hooked everything up last night for a test run and it souned really good with movies, It wasn't the best with music but thats ok it was built for home theatre!!

 

[knobert]

once its 100% completed i will post some