Horn work log (big pics)

[seg_representin 10+ year member]

I wanna try that....what exactly do i do. Do i have to open my computer up? Pm me if you can help me out. Thanks

 

[ssj2xxgotenxx 10+ year member]

Ohh... it's a computer sub lol!

 

[JunkTitleGolf 10+ year member]

Wow...horn thread turns into a turn you computer power supply into a 12 volt source in your house thread...

 

[wilzyx 5,000+ posts]

yep, its cool stuff

 

[JunkTitleGolf 10+ year member]

Somewhere on the net there is a tut. on how to properly mod your power supply to do that. I know there is 2 blacks per pin and you use one and not the other. I think it is the one to the left or something like that of the yellow.

 

[Death By Bass 10+ year member]

Somewhere on the net there is a tut. on how to properly mod your power supply to do that. I know there is 2 blacks per pin and you use one and not the other. I think it is the one to the left or something like that of the yellow.

you can use either... but anyway....

also, there was a guide published in a magazine over here in Australia, showing how to rewind the transformer in the PSU, and mod it to give 13.8volts...

 

[JunkTitleGolf 10+ year member]

You can use either? The tut. I seen said that one of the grounds ran at x amount of volts and the other ground was at a different amount. At first I thought it was a mistake but didn't want to take any chances.

 

[Death By Bass 10+ year member]

You can use either? The tut. I seen said that one of the grounds ran at x amount of volts and the other ground was at a different amount. At first I thought it was a mistake but didn't want to take any chances.

if its black, its ground, and they are all connected to the same place internally anyway.

 

[JunkTitleGolf 10+ year member]

Hmmm...now I need to become a psu wh0r3 and build me a lil system in my room. I already have one done...

 

[wilzyx 5,000+ posts]

Hmmm...now I need to become a psu wh0r3 and build me a lil system in my room. I already have one done...

lol, exactly what i was thinking

 

[wilzyx 5,000+ posts]

http://hardware3d.com/index2.php?page=How%20To%20Use%20Car%20Audio%20On%20Your%20PC

this says you can strip all the black wires and all the yellow wires and splice em together to the most power.

 

[Immacomputer 10+ year member]

It's not running off of my computer, just a spare power supply that I have sitting around for testing like this.

Music at full tilt sounds amazing. In about an hour, I'm going to put my deflex pads in and then play with this toy some more and decrease the air in the compression chamber. Right now though, I'm going to browse the internet and listen to music.

 

[Immacomputer 10+ year member]

Well, I just did some testing with tones and I maxed out my radio shack meter at it's 126dB reading from 60hz to 350hz. Above and below that, it started droping. 150-200hz seemed a little peaky and extremely loud. It actually gave me a headache. 35hz is pretty weak but you can tell it's there. With the compression chamber the way it is, it gets pretty muddy at higher volumes below 40hz.

I'm heading out now to build some new baffles and put in the second skin deflex pads then I'll play some more with this.

 

[80INCHES 5,000+ posts]

I haven't had the chance to play around with the compression chamber yet and will do that in the morning after I get my deflex pads in.
I actually just found the manual for the mids...

Fs = 55hz

SPL = 87dB

Qms = 9.43

Qes = .77

Qts = .71

Vas = 10.19 l

hmm lookin at those specs i'm not sure if it will be wise to build a box like that for that MID

speakers that have a low q(.3 and lower) and have a low fs is more recommended for a horn type box

80

 

[Death By Bass 10+ year member]

hmm lookin at those specs i'm not sure if it will be wise to build a box like that for that MIDspeakers that have a low q(.3 and lower) and have a low fs is more recommended for a horn type box

80

naw, it'll be FINE!!! //content.invisioncic.com/y282845/emoticons/veryhappy.gif.fec4fed33b4a1279cf10bdd45a039dae.gif

lol, like the two 4 inch mids I tried in a horn.

100+ Hz FS anyone? //content.invisioncic.com/y282845/emoticons/tongue.gif.6130eb82179565f6db8d26d6001dcd24.gif

126dBs on a termlab, at 44Hz? //content.invisioncic.com/y282845/emoticons/laugh.gif.48439b2acf2cfca21620f01e7f77d1e4.gif