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I am running two Yamaha Dual 15's with my Crown XTI4000 and I am wanting to add two single 18" Yamaha subwoofers to this set up. Will I need to buy an additional amp or will the Crown XTI 4000 have enough power to push all of these speakers and still get a great sound?

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dakos    0

That depends on how far you want to push those speakers, you didn't post links to actual products so I can't say for sure but it will probably not be enough for two 18" subs on one channel. Two 15" speakers, could be done with one channel of the 4000.

It would be helpful if you post links to the actual cabs you have in mind.

Avi

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dakos    0

From what I know, the S215V is a little weak in the lows so the addition of the 118V would be welcome, but, the XTI will be put to its limits with just a pair of S215V connected to it. To add the 118V on the other channel would be asking allot from it. In addition the two S215V, when connected in parallel, would sum up to 2 ohms nominal impedance, which will go down even further during operation, this isn't recommended.

I would suggest you buy an additional amp that better handles subs and leave the XTI with the S215V. Another XTi or a used itech would do the job.

Do you have enough budget for an additional amp?

Avi

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dakos    0

IMHO you need at least XTi 4002, or two XLS amps. Those subs have low sensitivity and lower power compared to your speakers, combine them with a relatively low power amp and you might end up with a less effective addition to your rig then you'd want them to be.

Avi

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