I own the AQ 7000 and several 1200’s and one 1000.
Into the 7000 I have plugged Michi 8 mono blocks. Now these amps can output something like 1800 watts per channel. I have tried the amps directly into the wall outlet and to me, I noticed no degradation plugging them into the Niagara. They actually sound much better.
With the AQ 1200’s I am using 4 JL F-113 subs with 2 of them plugged into each 1200.
Originally, I just had the front subs plugged into a AQ 1200 and the rear subs were plugged into a wall outlet. Sure, enough disaster struck with fluctuating voltages during a storm and the 2 subs plugged into just the outlet were damaged. The 2 plugged into the AQ 1200 were ok. So, that’s when I bought another 1200.
The AQ 1000 is used for my Video equipment.
Anyhow as what’s been already stated try it both ways, but I bet the AQ 3000 will not miss a beat.
ozzy