spliting a rca output for 2 subwoofers

[Unregistered]

hello, i was wondering how you would slit the rca output from a reciever so i could run 2 subwoofers. my problem is that my subwoofer has no outputs but i was another one and i want them to match i have to spot that sound exactly the same and if i had 2 there would be more balance in hte sound. i can't place you subwoofer well enough so it blend and i wanted another anyway.

my only other option is to sell the subwoofer and by 2 differents subs.

thnx for the help.
sheep

 

[TEWhite1]

umm, kinda unclear, but what i basically under stand is that you wanna run 2 subs from the same output on your amp? If so, from what I've read, this may not be good, due to impedance of your speakers. Someone with more knowledge of this is probably better able to help you then me. Try checking this link out, very good, you should look through it:

http://www.bcae1.com/

 

[Unregistered]

jees

god damnit i cannot type
sorry if i confused anyone, i shall reiterate.

i have one rca subwoofer out put on my amp, and i want to split it so i can run 2 subwoofers. my subwoofer has no outputs and i want to purchase another of the same make and model. i have 2 spots in my room where i can put this subwoofer that yeild the same results cept one is on a right side, the other is on the left. so i want to use both because i cannot get my subwoofer to blend in and be unnoticed.

my only other option is to buy 2 new subwoofers with outputs and use those and sell my older one.

again sorry for the poor grammer, im tired.
thanks again
sheep.

 

[TEWhite1]

ahh, much better, with the knowledge i have, I think this could damage your amp. Read this:

As you saw in the previous discussion, a 4 ohm mono load is the same as a 2 ohm stereo load as far as the amplifier is concerned. Looking at the diagram below, configuration 'x' shows a 2 ohm stereo load. Configuration 'y' shows a 4 ohm mono load. If both amplifiers are driven to the same output level, the current flowing through the outputs would be equal. In configuration z we have added another 4 ohm speaker bridged onto the amplifier. This means that the load has doubled which means that there is only one half of the impedance of configuration 'y'. Remember that impedance is the opposition to the flow of electrical current. An amplifier depends on a high enough impedance to prevent too much current flow through the output transistors. When the load is lowered to 2 ohms mono as in configuration z, the current flow through the output transistors is doubled (4 ohms mono vs 2 ohms mono). The amplifier's maximum safe output current may be only slightly higher than that needed to drive a 4 ohm mono or 2 ohm stereo load. When the amplifier tries to drive the 2 ohm mono at full rail voltage (40 volts) the safe operating area of the transistors will (more than likely) be exceeded. Keep in mind that we are talking about the most common types of amplifiers which are designed to drive 2 ohms or higher per channel (2 ohm stereo stable and 4 ohm mono stable amplifiers). There are amplifiers (high current amplifiers) which are designed to drive low impedance loads. These amplifiers have more transistors and heavier duty components to withstand the increased flow of current through the output transistors.

With that, the impedance will be able to travel down 2 channels, instead of one, cutting in half the impedance. I'm assuming that your amp drives a 4 ohm load on the sub, and each of your subs are 4 ohms, meaning that if you hooked up 2 in parallel, you will probably fry your amp, because the amp isn't getting the 4 ohm resistance that it needs, which will let too much current flow, which will fry you amp. However, if your subs are 8 ohms, and you hook 2 up, that will cut in half and make a 4 ohm load, the rating your amplifier is rated at.

 

[markw]

Aer you talking about spliting a preamp/line level output to two powered subs?

If so, then a simple, inexpensive generic "Y" connector will work fine. Either that, or a fancy, expensive brand name will serve just as well.

 

[Unregistered]

yes pre out, sorry should have made that clear.

yeah pre out, so all i need is a y adapter, excellent. and even if i was doing it the other way, my amp is high current, so i would have been fine.

thanks muchly for the help, you have just enhanced my home audio experience.

 

[TEWhite1]

no prob, happy to be of help! (If ya mentioned the subs were powered, and you were using a pre-amp line out, it would have gone alot faster )

 

[markw]

yeah pre out, so all i need is a y adapter, excellent. and even if i was doing it the other way, my amp is high current, so i would have been fine.

thanks muchly for the help, you have just enhanced my home audio experience.

Glad to be a help. But, in the future, please try to not use God's name in vain, particularly in light of this relatively trivial situation.

 

[Unregistered]

sorry again

yes, maybe i should have used gosh, or F***. sorry about that, i hope i did not offend you.

 

[annunaki]

Yes,
Please keep explicit language to a minimum. If you feel you must use an explative, Please use ****. Thanks!

 

[Westrock2000]

The Y-cable will work, just remember you can't go the other way....two outputs feeding one input, you need a little different method for that. But two inputs fed from one output is fine.