Cutlass

I was working on my box designing skills out and came up with this. I believe it is ABOUT 4.5 after port displacement and tuned to ABOUT 28Hz. What do you guys think of it?

Box designers: Is the port area too much? I don't want it too big do I? Because if it is, then the woofers wont be able to load it, right? I'm not for sure on that, its just something i thought i heard.

 

also, i found this strange. i used an online bandpass calculator and i entere the parameters for my 13kv.2 and this is what i got as results. wierd??

Lower 3db Rolloff: 25.00 Hz (F3 Provided by user)
High 3db Rolloff: 91.30 Hz (Calculated)

Sealed Box: 1.45 cubic feet
= 2509.34 cubic inches
= 41.13 liters

Ported Box: 0.79 cubic feet
= 1367.47 cubic inches
= 22.41 liters

Tuning Frequency: 47.78 Hz

 

What kind of wood is really light? BUT I can still make work for building a box...

 

What do you guys think of the IA 187's? I was thinking of purchasing 4 of the 12" versions and powering them off a Audiopipe 30001D. I heard that at 750RMS they really shine.

Im also open to any other suggestions of subs that will work good in my application.

Also, what happened to Mach 5 Audio? Are they still going to continue to sell equipment?

Thanks guys.


http://www.soundsolutionsaudio.com/store/products/12"-187-Series.html

 

i read somewhere that a guy did testing and you need to ATLEAST double the RMS. At 750 each they really shined.

 

Power handling is insanely underrated. 300 watts is childs play to these subs. With a small sealed enclosure, you could easily attach one to between 800 and 1000 watts RMS. Trying this is your own risk, don't complain to me if you kill one. I have run mine with 250, 350, and 750 watts RMS to each sub. At 250, they'll get loud, but not much for DD volume levels. 350 is an improvement. At 750 they shine. To say the least, you'll need at least double their recommended power rating to see what these subs are capable of.

 

What is this thing?!?!

 

No one?! Ok, well its the beginning of Lila's new substage!!!

 

We made another step today in 6th period World Geography! haha

here it is 9cu.ft. @ ~30Hz. Should be pretty loud. Losin the backseats this time around too

 

I'm thinkin those for a lil bit, then I will either use the cheapo hifonics subs or some different ones. idk for sure yet. I know i am building it though. Birch this time too.

 

Well, I changed my mind again! I was thinking about 2 of these now. what do ou guys think? would 2 of these be better than 4 of the 12" hifonics? I am thinking the IA is probably a better quality sub.

http://www.soundsolutionsaudio.com/store/products/15"-187-Series.html

 

now im thinking of one of these!

http://www.mach5audio.com/zen/index...id=181&zenid=98afd0fa71818d522f5d0489d6b4d520