UPDATE: PICS! Check it out, sub box TRUE RFD STYLE! Connecting car Sub to computer?

[onecoolloser]

Hey

I just obtained a 12" FA Sub from my uncle. It pushes 600W.

Im wondering if i can hook it up to my computer? My main speakers connected to my computer are thru a home audio system. I do have an extra amplifier lying around too.

I connected the subwoofer to my external amp, but I don't get the "boom" i want to get from it. I can hear the actual song, including voices...aren't sub supposed to play only the bass? BTW, when i was testing the sub wasn't in a box.

Which could be the problem? That my home amp doesn't push enough? Or is it that it isn't in an enclosed box? Or, is it just not compatible with home systems.

Someone please help, TIA.

[Desolatax]

If that sub needs 600w RMS, there is no way an average home amp will push it. You would have to limit the highest frequency that the sub will put out so that you don't hear the full range. One problem is that it is a CAR subwoofer, not a computer subwoofer.

[silva95teg]

And it needs a box. You hear speach and stuff because you are driving all frequencies to it. It needs to have a Low Pass Filter to stop them. Also i dont know what brand FA is but i am going to assume thats 600 watts max so 250- 300 RMS?

[onecoolloser]

If that sub needs 600w RMS, there is no way an average home amp will push it. You would have to limit the highest frequency that the sub will put out so that you don't hear the full range. One problem is that it is a CAR subwoofer, not a computer subwoofer.

No, the sub is 600W Max, not RMS. For the full range I will need a bandpass filter?


And it needs a box. You hear speach and stuff because you are driving all frequencies to it. It needs to have a Low Pass Filter to stop them. Also i dont know what brand FA is but i am going to assume thats 600 watts max so 250- 300 RMS?

I'm not sure about the specs because it was given to me by my uncle. It isn't a well known brand (actually i havent heard of it before). The subwoofer says 600W (Max), and 4 Ohm.


OHMs is just as important rms power if not more. wrong setup will end in a damaged component.

car subs r not designed for home use and Vis versa.

Plus a Home amp will not be able to power my 10" Infinity Perfect 10" car sub which is rated at only 350watts RMS(MAX handling power is 1400 watts). so forget about ur 600 watt sub at home.

I have experimented with all possibilities, car subs at home, home subs in car. and also mids/highs.


I still want to try it out, to see how it works out. The Sub is 4Ohm, SVC.

To get more power from my home amp, should I bridge the connection?

So i'm guessing that my problem is that I dont have a box. I'm thinking non-vented is the way to go?

Let's try a box first, then i'll think about the low band-pass filter.

Thanks for the responses so far, keep em coming!

[I wouldnt mind if Masterballer took a look at this, hehe]

[silva95teg]

You Could try and get a car amp and a decent computer power supply and use the 12v rails to power it. Problem with using a av receiver is it puts out full range and not nearly enough power. Also make sure your reciever is ok with a 4ohm load or you might end up with a blown amp.

[onecoolloser]

UPDATE:

My computer has onboard 5.1 surround. I used the subwoofer/centre output from that to decode the bass frequencies and fed it to my amp. I now have a seperate control for my sub.

The sub works. Not that great (possibly due to the box), but it works. Man, i really need a sub box. Soon the screws are going to rip the cardboard.. hehe:D

I also made a subwoofer box (for the interim) true RFDer style. Check it out!

http://i242.photobucket.com/albums/ff241/onecoollosr/IM000386.jpg

:D I laugh everytime I see it.

[cwb27]

Doesn't get much more bush then that...

[the one]

not sure whether to laugh or cry..

at least its 'sealed' for tighter bass response :lol:

is that 20 ga wire powering the sub? I hope not..

and how do you get screws to stay in cardboard?

[board123]

I love that design. That's exactly like something I would cook up on a Sunday afternoon.

[onecoolloser]

at least its 'sealed' for tighter bass response :lol:

is that 20 ga wire powering the sub? I hope not..

and how do you get screws to stay in cardboard?

Hehe, yes, its sealed. Yep, that 20, no 40, no 60awg (hahah i dunno.. really thin though) wiring is powering the sub.. LOL

The cardboard is pretty strong. A microwave came in it. Hehe, i was soo tempted :D


I love that design. That's exactly like something I would cook up on a Sunday afternoon.

Come to think of it..i did do it on Sunday afternoon..LOL

[jcoltage]

when you hear the fire trucks sirens coming to your house .. it not the speakers... it the fire created by that fire hazard you call a sub... Please for the love of god move it away from the piles of paper on your bookshelves ... Good Job if it not a danger to your house and others

[MkmBandit]

http://i242.photobucket.com/albums/ff241/onecoollosr/IM000386.jpg

:D I laugh everytime I see it.


ahaaaaaaahahahahahahahha DUUUDE... LMFAO.. :lol:

wow.. that is the funniest ish I've ever seen. Dont take it personal or anything.. if anything you just made my day. I applaud you for your innovation :)


lol..

ps; the box wont catch fire.. the speaker will either fall out from reverse pressure or from the sheer vibration before that would happen

[onecoolloser]

ahaaaaaaahahahahahahahha DUUUDE... LMFAO.. :lol:

wow.. that is the funniest ish I've ever seen. Dont take it personal or anything.. if anything you just made my day. I applaud you for your innovation :)


lol..

LOL yeah i did it for fun...cause i needed a box until i find myself a 12' one.

Hehe, laugh all you want. I laugh everytime i see it. LOLOL. hahaha. Nothing personal bro:)

PS: Anyone wanna donate a 12" single sub box? I think i need one.

[MkmBandit]

PS: Anyone wanna donate a 12" single sub box? I think i need one.

Just because you're being a good sport about all of this, send me a PM and this weekend I can hook you up with an extra ported box :) :lol: :)

Its wooden but has no carpet on it. I'll give it to you on the basis that you'll wrap the box in this weekends FS/BB flyers.

[onecoolloser]

Just because you're being a good sport about all of this, send me a PM and this weekend I can hook you up with an extra ported box :) :lol: :)

Its wooden but has no carpet on it. I'll give it to you on the basis that you'll wrap the box in this weekends FS/BB flyers.

DUDE, you serious? :D Now, all i gotta do is find my way to Kanuckistan...unless Kanuckistan wants to find his way to my doorstep... hm... :lol:

Hahaha, sure! I'll do it and post pics! Hehe, gotta love these forums.

[B0000rt]

Ghetto box too, no name Microwave hahaha

[onecoolloser]

Ghetto box too, no name Microwave hahaha

Haha..i told you maan.. true RFD style.

Man, walmart brand beats the crap outta your microwave :D :P

[N_Raged]

That's hilarious.. should be fine if it's properly insulated :razz:

[board123]

Ghetto box too, no name Microwave hahaha
My microwave is a Danby...

[UrbanPoet]

haha oh mayn........ $10 can get you enough plywood to make a proper setup. And even thats considered a ghetto setup.
I give you props for your improvisation!

[MkmBandit]

DUDE, you serious? :D Now, all i gotta do is find my way to Kanuckistan...unless Kanuckistan wants to find his way to my doorstep... hm... :lol:

Hahaha, sure! I'll do it and post pics! Hehe, gotta love these forums.


Yeah I'm serious. Its a pretty ghetto box itself but it'll work :lol:

[googoo]

$50 will get you a 1cuft sealed box if you hunt around.

Spend the $50

Brent

[Impossibles]

when you hear the fire trucks sirens coming to your house .. it not the speakers... it the fire created by that fire hazard you call a sub... Please for the love of god move it away from the piles of paper on your bookshelves ... Good Job if it not a danger to your house and others

There's not enough voltage going through speaker wire to be a fire hazard.

[jcoltage]

you sure ^ what happens if there is a surge .. my sub .. on my pc has it own adapter and makes all the electronics on the same power bar surge for 1 second. I am no expert but if this is true I would say gj then ..

[onecoolloser]

and how do you get screws to stay in cardboard?

Just screw it in.

Check it out:

http://i242.photobucket.com/albums/ff241/onecoollosr/IM000407.jpg
http://i242.photobucket.com/albums/ff241/onecoollosr/IM000406.jpg

[srobak]

Hahaha that is freakin HYSTERICAL!

You guys have to know that this thread and the associated pictures have spread like wildfire across the internet. It is the rage at avsforums and it has even gotten attention over at Klipsch in their forums.

Awesome!

[sonick]

most car subs require 4 or 2 ohms, hooking it up to a standard home amp may damage either the amp or the sub itself.

[MkmBandit]

Hahaha that is freakin HYSTERICAL!

You guys have to know that this thread and the associated pictures have spread like wildfire across the internet. It is the rage at avsforums and it has even gotten attention over at Klipsch in their forums.

Awesome!

Why would it? Subs in cardboard boxes are nothing new.. Many have done far worse, like the "mid's in a tissue box" setup.

[crazdefool]

There's not enough voltage going through speaker wire to be a fire hazard.

bull $hit its the amperage that will cause the fire not the voltage

[onecoolloser]

Hahaha that is freakin HYSTERICAL!

You guys have to know that this thread and the associated pictures have spread like wildfire across the internet. It is the rage at avsforums and it has even gotten attention over at Klipsch in their forums.

Awesome!

Heh, sorry for bringing this thread out of the dead, but care to post any links?

[ShadowVlican]

ROFL thread is made of WIN