equipment
350watt plate amp
2x20watt mini system with no line in

i used to wire my little 20w amp, like this

mini system with main speakers on the speaker outs as usual
and wire the 20w sub amp in parallel with the speaker outs

This is perfectly ok to do with the 350w amp isnt it? because im driving the speakers ~8ohm and the line level 10k ohm? then the line level isnt actualy being overdriven ?

Il be buying an amp with inputs if i can soon so i can can run my source direct into plate amp to highpass the main speakrs to prevent excess excursion

it arrives tomorow,the plate amp :-) the jbl 2226 will love me for it
Cheers