Hmm from 1-10 JL 1000/1 is a solid 12 overall. Value? 12. This is the ONLY amp you will ever have to buy. R.I.P.S., go to www.jlaudio.com and read about it. Regulated INTELLIGENT Power Supply, this means it sets itself to work with the impedence of the woofers that its connected to.
With this amp there will be NO more having to find a 2ohm mono amp to push your pair of 4 ohm 12's until you blow them, and then have to SELL that amp you bought to find a 4 or 1 ohm mono amp to push your DUAL 4OHM pair of 12's. I know that everyone eventually runs into this problem. I have in the past, but never again! The JL 1000/1, 500/1 and 250/1 are the only amps that make the same amount of power at 4,3,2.67,2,1.5 impedences. ANY SUBS will work with this amp, and for that reason it is well worth the $1,099.99 that it retails for, HOW CAN PEOPLE COMPLAIN ABOUT BEING ABLE TO GET IT FOR ONLY $799???????? OH, and with low impedence (under 1.5ohm), low voltage, and thermal protection... If you can actually somehow find a way to blow this amp, you should never be allowed to touch a piece of 12volt electronic equipment again.
I would put 1000 watts of JL power up against any other amp (made these days) that is rated 1,000 watts and bet on the JL sounding better and playing louder. GO TO YOUR JL DEALER and SEE FOR YOURSELF!