fritosaregood
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Posts posted by fritosaregood
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so for example the receiver my friend demoed the sub on didn't have any special outputs for subs (they were all the same). would this mean, basically, that i could run mah shit on any old receiver without much risk?
If you can run the sub directly off the reciever there will be a speaker wire output designated for the subwoofer. and you should have no problem running it like that
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4 12s, 8.5 cubes. and only 60in^2 of port area
Shouldnt you go bigger on the port area
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I love the toilet seat argument,
if i can lift it, you can put it down
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most home sub amps will go down to 4 ohms.
i have a pos insignia 5.1 system that has a 3 ohm minimum sub amp
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Yes but the problem is that my subwoofer is way below the typical impedance of any home amp.
you said it was 4 ohm right?
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I checked BestBuy, they have a very limited selection of receivers (that don't come prepackaged with speakrs, which I don't want).
Just to confirm, a 5.1 or 7.1 receiver would not work? Because of a difference in impedance?
Yea, bestbuy is limited. circuit city used to have a big selection of different recievers, but they are gone now.
A 5.1 and 7.1 reciever would work, it would just have wasted channels if your only using two of them. The impedance difference shouldnt be a problem. Just look at the specs. If it has a sub amp built in, look for its minimum impedence. if it just has a pre out for a sub amp the sub impedence will only matter for the external sub amp
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oh. well if you have the money i would do the fullrange amp and sub amp. if not. look around at for bestbuy for different recievers. i couldnt find any 2.1 recievers that had all the specs about them on the net. but then again i didnt look super hard
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If its just for your laptop you could get a 2.1 system from bestbuy with everything in it. if you dont want do deal will buyin multiple components. those are the only ways i can think of to do it
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So basically I need a sub amp and a receiver? Or would it be possible to power it all off the receiver, like my friend did when he was demoing the sub to me.
the things i posted doesnt need a reciever
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Ok, how would I go about wiring it to my laptop?
it should go:
Laptop
connect this the laptop headphone jack: http://www.parts-express.com/pe/showdetl.c...FTOKEN=26967993
connect that other end of that to the first amp: http://www.parts-express.com/pe/showdetl.c...FTOKEN=26967993
connect one end of this rca to the 2 ch amp: http://www.parts-express.com/pe/showdetl.c...FTOKEN=26967993
connect the other end of that rca to the sub amp: http://www.parts-express.com/pe/showdetl.c...FTOKEN=26967993
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Thanks for the help. So does this basically mean that I would only need one receiver, but I would need two amplifiers to run a 2.1 setup? And also to confirm that the difference in impedance between the speakers wouldn't mess up the receiver, even if it has 5.1 or 7.1 sound?
If you have a reciever, you just need the reciever and and amp for the sub.
The things i posted were both amps, one for speakers and one for the sub, in that setup you laptop would kinda be considered the reciever or thats where the signal would be coming from atleast.
edit: and different impedance between speakers and subs wont do any harm, the sub amp is usually external anyway.
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I have this one pushing 4 12s:
http://www.parts-express.com/pe/showdetl.c...tnumber=300-752
and it does quite a number on the house! I have broken things. They also make a 300 watt version. I have also owned a Dayton plate amp (until a direct lightning strike killed it). It was nice but didn't have the grunt that the Bash does.
Ive got that amp one a 15" dayton sub. things fall of shelve to say the least, to say even more neighbors come over to make me turn it down cuz their windows are rattling
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http://www.parts-express.com/pe/showdetl.c...tnumber=181-594
that will get the signal from the laptop headphone jack to the first amp
then connect the fullrange 2 channel amp to the sub amp with this
http://www.parts-express.com/pe/showdetl.c...tnumber=181-652
it should be easy
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The primary issue at hand here seems to be that the subwoofer is rated at 4 ohms while the desktop speakers are rated at 8 ohms.
that shouldnt make a difference
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this, if you can get the signal from the laptop to the amp. This amp is fullrange.
http://www.parts-express.com/pe/showdetl.c...tnumber=302-649
then run an rca wire from the output of that amp the the input of sub amp
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from the other thread,
no a sub amp wont do speakers too, it wont even have the frequency range?
Is this going to be a home theater type setup that you can plug your laptop to for music?
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a reciever will have power to cover speakers, but an external amp is usually needed for the sub.
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What all will be running off your 12 volt source
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what should i used to seprated the front 12v batt from the 16v batt at the back ? i think about Stinger S2402 240 Amp 3 Post Battery Isolator will that work ?
do you have a 16volt alt
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I was lookin at knu wires to, then i think i saw it said it was tinned too. Now that i know what it is, Ill look back at them.
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im not finding coppercableman cable on ebay. do you have a link?
Receiver Vs. Amplifier?
in General Audio - Can't find a category for your question? Ask here.
Posted
If you plug the 4 ohm sub in the 8 ohm speaker output, over heating problems can come up
What i am saying though; If the reciever allows you to directly hook up the sub to the reciever, as in a channel for sub use only, it will usually(check the manual for specs)have a lower impedence rating like 4 ohms. then it will be ok