Idea!!

[jdrumstik]

I want to make a hometheater sub, Im thinking of doing 4 10 inches, in a sleaed box, wired into a 2 channel amp. so first off, thats possible right? also, what is the best type of amp? cause eventually I want to be able to take two of them out and make somthing really cool, and comp,icated and turn the toerh two into car speakers, but that will be later.

note, this sytem is for mostly music.

so, what is the best over all sub? I want something good, affordable, and reaidly avaible since I will need to be buying 4 of them used.

[CarSuperfreak]

K a few things.

1) Car Audio runs on 12V DC
2) Your house (and home theater subs) run on 110V AC
3) In Home Theater systems, the reciever is the amp
4) Different Connections

now, i dont know how in the workd your oging to try and do this, even with an AC-DC convertor, it would be pretty weird. not to mention that home theater recievers have a sub-out coaxial (or sometimes digital) cable, so i dont think the audio connections would work. it doesnt use an rca from stereo-to-amp like car audio, but the home theater reciever is the amp as well, with a single connection to the sub, not like your + and - wires for car audio.

[jdrumstik]

well, home theater subs, are usuualy externally amped, as in, the reciever really isn't an amp as far as the sub is conerned.

Secoundly, the reciever send the line for the sub through an rca able, I know cause I have ran an rca cable through their when cash was tight, so I don't see the problem all I have to do is get the converter.

even if the singal was coaxial evr heard of a line out?

besides that I have the amp mountd on the box and big deal, its great and I have four sweet looking subs under the desk.

[CarSuperfreak]

even though it may work, i think you would get better quality out of a home theater sub using a digital signal. thats my opinion

Since you are looking into buying something new anyways, i think you may find that by the time you get 4 subs and a monster amp, you'd be saving some money by buying a high-quality home theater sub

[Haibane]

I am almost certain that most car audio subwoofers that are HQ handle much better than home stereo. Home stereo lacks the umf.

[SickVette]

Home stereo lacks the umf? You need to listen to more home stereos systems then. I have a Velodyne 15" with 2k watts on it. And I heard ALOT louder than mine. I have 60k in my home theater and that is squat compared to what is out there.

Jdrumstik...sure you can use car subs for your home. BUT a car sub is designed differently than a home sub. That does not mean it won't work though. Yes you can get a big power inverter to run a car amp in your home but honestly I would purchase a home amp to the job.

[PaulD]

why in the world would you WANT to use 4 10" subs ? One of the trade-offs car stereo subs make is they can play in a much smaller box ... BUT they require much more power. Just use a 15" home sub and be done with it.

[jdrumstik]

Well, im gong for quality, a 15inch sub puts out better notes but the tranisent sucks. But I am considering a dual 15 setup on a home amp.( ie got lots of books coming in the mail)

and as opposed to hometheater doesn't have the umph. yeah, I agree, home is so dang pricy that most people have these little crap setups.

by they way, where can I buy a resonable home amp around 500 watts and 4 channles?, that would be a "power amp" right and then I would use my reciever as a "pre amp" right?

[sr20de4evr]

Originally Posted by jdrumstik

Well, im gong for quality, a 15inch sub puts out better notes but the tranisent sucks. But I am considering a dual 15 setup on a home amp.( ie got lots of books coming in the mail)

and as opposed to hometheater doesn't have the umph. yeah, I agree, home is so dang pricy that most people have these little crap setups.

by they way, where can I buy a resonable home amp around 500 watts and 4 channles?, that would be a "power amp" right and then I would use my reciever as a "pre amp" right?

15's don't have worse transient response, I swear to god if one more person goes off about this myth I'm going to explode

Home theater isn't that pricey, a home setup costing a certain amount would cost ATLEAST 5x that to reproduce in a car.

You can get a home receiver anywhere, and the receiver is the power amp and the preamp all in one. You don't need a separate amp, in fact there are very very few stand alone power amps out there, and they're for insanely high end setups and cost a lot more than you would want to spend.

[PaulD]

well, you don't need 5 million watts in the home like you do in the car. And you're right, transient response is more a function of the box type - most guys port or band bass 15's for xtra bass.

[GSteg]

Originally Posted by sr20de4evr

15's don't have worse transient response, I swear to god if one more person goes off about this myth I'm going to explode

H

but i heard the best buy man says 15s are only for rap

[Haibane]

Well you know if you put a sony xplod sticker on that 15, you get even more rap bump.

[jdrumstik]

Thats actually really cool if you think about it. I have an extra reciever, I could wire it into the subs if I found some 8 ohms which arn't that uncommon, you can buy them on homethater DIY sites.


so then I have a question. If the reciever is 8 ohm, putting out 100 watts to all 5 channels, then, is there anyway to double wire it so that I have 200 watts to 2 channles, and then forget about the 5th one?



also, if Im pushing a lot of watts throhg 15's, then whats the deal with my regular spakers, are they going to be way over powered by the subs if I port them? Or, is that where tunning comes in so i just tune them down to lower frequencies? If I do run them off of there own reciever, then I could easily adjust the volume I suppose.


Well, Im getting real excited keep feeding me with idias.

and some one tell me about wire a 5 channel amp into 2, and forgetting aobut eh 5th channel. Or any idias, for the 5th channel?

[sr20de4evr]

Well first off, the receiver puts out the full range to the channels, and the sub would need a lowpassed signal to sound right. Otherwise it would sound muddy and crappy, and would really defeat the purpose of having a sub at all since it would just sound worse with it than without.

Also, the receiver puts out different signals to the different channels, the front R and L don't receive the same signal as the rear R and L, so your sub would be playing the little surround voices and whispers that give you the surround sound effect, not the actual subbass frequencies that go with what's happening on the front channels.

[jdrumstik]

so you are recomemeding the front cahnnels, as opposed to the back.

First off though, I would be using the sub pre out on my main amp, double it into stero plugs (but really just palying one channel) and then run it through, so since my main reciever has all the eqs for a sub, a low pass really isn't needed, since eseentiually the main reciever low passes the singal and sends it to the sub reciever, which will just recieve the sub signal.

plus, my recievers you can set it up as large rears if you want, I play 4 KLH tower speakers pushign 12inch woofers all the way around. I knew that one day I would be playing surround sound DVD audio. So I can't tell you for sure that the rears play little dinky "surround sound" plus my reiceivers have options for various types of surrounds, but you might be right still

so getting the right singal to the subs is no problem at all, atleast I don't think. The real question is, is there anyway to wire a 4 channles amp (ommiting the center channel) into a 4 ohm signal, stereo. Like can I wire two channels into one driver?

also I know this is old, but If I am pushing two fifteens, and listen to grunge/ punk/ indie, then would proted be a bad idia? or if I have the pass low enough, does it not matter. I have heard that ported is only good for rap, but I think that this may be a myth, as all my hometheater stuff is ported.

Thanks a lot, sorry my post is so long.

anyone know of any good sites for 8 ohm sub drivers?