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right amp for vrx918 subs


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#1 benjamb2

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Posted 29 July 2011 - 08:31 PM

Right now i have 2 vrx918s subs and i am needing to power them well. i have a rmx2450 from qsc bridged to 4 ohms and getting 2400watts.    this is just going to damage the subs.  i want to try to use the xti2's but not sure if i should do 1 4002 or 2 2002. either way it would be bridged mono but the 4002 would be running at 4 ohm. and the 2002 would be at 8.  what would the better choice be? are there any better options that i am not looking at?

#2 Tom Lureman

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Posted 01 August 2011 - 08:31 AM

I would go with 2x XTi2002's.  It is easier on an amp to run an 8ohm load than it is to run a 4ohm load.  Also, many times speakers have a tendency to go below nominal impedance at certain frequency ranges, meaning it wouldn't be uncommon for the parallel pair to go below 4ohms.

#3 benjamb2

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Posted 01 August 2011 - 04:51 PM

would i ever want more than the program power going to these?  these subs are amazing and I'm trying to protect them but get the most i can for my money.


#4 Tom Lureman

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Posted 02 August 2011 - 07:39 AM

It wouldn't kill to put more into them, but these amps are a good match for the speakers.  I wouldn't put more than 2000 into them.

#5 mixwiz

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Posted 18 August 2011 - 02:28 PM

I've been running my SRX 718S (same driver as your box) with an XLS2500 bridged and it works really well.  On several occassions, I ran a second sub and it worked fine.
A couple times were outdoor gigs in 90 degree heat.  Application was live music with mostly Kik and a little bass in the subs.