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Two different powered subs

Poll Results: Is this a bad idea, given they are independently powered?

 
  • 0% (0)
    Bad idea.
  • 100% (1)
    Okay idea.
  • 0% (0)
    Fine idea.
1 Total Vote  
post #1 of 2
Thread Starter 
Hello everyone. This may be my first post here (if it's not, it's been awhile!) and YES, I did do many searches first.

I currently own the following Sony Subwoofer. I'm aware it's not all that great, but for the price it's been pretty good to me:
http://www.amazon.com/gp/product/B000OL22T2/ref=oh_details_o00_s00_i00

I've since got some new (new to me) front speakers that it can't quite keep up with:
http://www.amazon.com/JBL-S310-Floorstanding-Speaker-Single/dp/B00002EQBT/ref=sr_1_1?s=electronics&ie=UTF8&qid=1340245348&sr=1-1&keywords=jbl+s310

I am really happy with the sound I'm getting out of my system right now - crisp with very low distortion, even at levels that I feel are out of this world loud. Still, I want more bass! I feel that even with my sub set to the max (I use a fairly low crossover, 60Hz) I'm not getting as much bass as I'd like. I also tried just using the JBLs woofers, but that didn't really get me to the level I'd like either.

The obvious solution? Buy a better sub! I plan to do just that:
http://www.amazon.com/America-VK-12-1000-Watt-Front-Firing-Subwoofer/dp/B0016J3H18/ref=sr_1_3?s=electronics&ie=UTF8&qid=1340245583&sr=1-3&keywords=subwoofer+12%22+bic

My question is this. I understand why it would be a no-no to continue to use my current sub if both subs used the same amp. My current is 6 ohms and the new one would be 8 ohms. BUT, since they are powered subs, isn't my Onkyo TX-SR800 receiver (I would use a Y splitter) just basically sending a weak signal to each telling them what to output and not really giving them any true power? I've read many places that it's a no-no to mix subs with different impedances, but couldn't I adjust them to "match"? I realize the BIC may end up being louder, but I'm looking for max bass as long as I don't sacrifice too much quality.

If I buy the new sub I'd have very little use for my old one, so I'd like to put it to use with a Y-splitter. Am I crazy?

Thanks, guys. I LOVE reading this forum.

-Mike
post #2 of 2
With both being powered subs, the Onkyo is not going to see the impedance of the different drivers. Each of the subs amps are matched to the driver it powers. The Onkyo will see a high impedance load from the input stage of the amps. Splitting the signal between the two is quite acceptable.
Now, getting the two subs to play nice together is a different problem.
Edited by ransac - 6/22/12 at 7:57pm
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