Exactly.
Don't get me wrong.. Some brands use questionable quantity of terminals for their power rating.. but i guarantee you when it comes down to number crunching, there is NEVER an amplifier that lacks terminal size/quantity for it can do SUSTAINED.
And because of that.. it really makes me question the sustainability of something like this.
Correct me if i'm wrong but isn't the M4a something like 5000w 11-12v and up to 6500-7000w at 14v?
If so.. technically duals are right on the edge of maintaining top notch DC voltage for the amplifier but why?
It's almost as if you have to request duals for a 7k if going with a good design, seriously..
Most 7ks now are triple inputs.
But to keep duals, the price should reflect as such. For duals, i'd expect the price to be around $1299-1459.
Can't expect the best from every brand as it's not every brand's intentions with respect to market.