yaar kenwood`s restriction are much on mention on amps
like even if it says 2 ohms stable , means you should assume like 3,4 ohms stable
it dwont play much longer on exact 2 ohms load (@ full output snatching from it )
i used 9102 , the quality of that amp is like i never have it before
extreme sharp cutoff LPF , great subsonic , Best Knob control ever
why don`t you get some 1 ohms stable amplifier ,
and use 2 ohms load :you should have big margin on that
like solid audio class D 0.5 ohms stable
but recommended to use 1ohm or greater