Help me build a home 15" sub, paypal :)

[vario 10+ year member]

I just bought this sub: http://www.parts-express.com/pe/showdetl.cfm?Partnumber=295-470

t/s specs:

*Power handling: 250 watts RMS/350 watts max *VCdia: 2" *Le: 2.30 mH *Impedance: 4 ohms *Re: 3.1 ohms *Frequency range: 20-500 Hz *Fs: 20 Hz *SPL: 92 dB 2.83V/1m *Vas: 9.70 cu. ft. *Qms: 4.00 *Qes: .50 *Qts: .44 *Xmax: 8.5 mm *Dimensions: A: 15", B: 14", C: 6-3/8".

and this amp:http://www.parts-express.com/pe/showdetl.cfm?Partnumber=300-805

Bass Boost 6dB @ 30Hz

* High power/low distortion

* Adjustable low pass crossover

* High and low level inputs/outputs

* Auto On/Off

* Phase reversal switch

* Power output: 170 watts RMS @ 8 ohms 240 watts RMS @ 4 ohms

* S/N ratio: 90 dB (A-weighted)

* Dimensions: 9-13/16" W x 9-13/16" H x 5" D

I am thinking about building a vented box, but I am also considering sealed. Main things I am looking for are accuracy and sound quality. This is for my room, not my trunk. I am willing to paypal $5-10 if someone can give me a really nice plan. Should I go vented or sealed? I have already bought these parts so that is what I will be using. If I go vented, I would either go slot port or flared pvc.

Prefered size range is 2 cubic feet to 4 cubic feet, possibly larger if I like the design.

Material is birch plywood, not mdf. I don't like cutting mdf. I will reinforce of course.

Will a slot port give me the accuracy I need for home audio?

Click to read more...

 

[vario 10+ year member]

I would also like to add that for aesthetics i am thinking having the driver top, then the slot port below, front firing.

 

[jdawg 5,000+ posts]

thats a nice sub but is it for music? movies? Thats would determine the tuning

 

[vario 10+ year member]

I appreciate prompt reply. Music mostly (classic rock, some rap, metal) and a mixture of movies as well. Id like a tight, accurate, hard hitting response. You could bring a person in and they could say " **** that sounds good"

if it helps, I am running what could be called a stereo setup I guess. Two rear 2-way KLH Model 17's, two front technic sb-l71 3 way's in front and a sub(this one after its built //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif ). The fronts and rears are bridged off two channels on my behringer ep1500 dj amplifier, 450 watts per channel at 4 ohm.

 

[mlstrass 5,000+ posts]

check the DIY section on AVSforum and hometheatershack as there's a LOT of HT sub builds. Probably with the PE sub you have...

 

[vario 10+ year member]

cant find any builds for this particular sub.

here is my wip, am I on the right track atleast?

 

[vario 10+ year member]

Port length is 107.71" long, how do I calculate that when i am making the mockup?

here is a photo of the mockup so far

 

[vario 10+ year member]

i gave up, $10 to anyone who makes me a good slot port, 4 cu ft

 

[mobeious 10+ year member]

i can help ya out PM me

 

[vario 10+ year member]

pm sent //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[bamaboy 5,000+ posts]

cant find any builds for this particular sub.
here is my wip, am I on the right track atleast?

that response looks like garbage for movies //content.invisioncic.com/y282845/emoticons/crap.gif.7f4dd41e3e9b23fbd170a1ee6f65cecc.gif

 

[vario 10+ year member]

yeah thats why i gave up

 

[IDSkoT 5,000+ posts]

I would also like to add that for aesthetics i am thinking having the driver top, then the slot port below, front firing.

Negative. If you're going for aesthetics, I say you have a down-firing sub, and have the space in between the legs covered in grill cloth.

That would look the best.

It would just look like a piece of furniture. As for the port, however, you can have port down, or aeroport facing anywhere, and paint the box a nice black.

 

[IDSkoT 5,000+ posts]

that response looks like garbage for movies //content.invisioncic.com/y282845/emoticons/crap.gif.7f4dd41e3e9b23fbd170a1ee6f65cecc.gif

Not really. It's just not as peaky.

116 dbs isn't too bad.

 

[vario 10+ year member]

i dont want a downfiring sub, want driver to fire front i have wood floors and i run full sized vintage speakers so it would match my aesthetic lol

edit: forgot to mention, amp has bass boost 6db at 30 hz