sorrow

has anyone tried tecnical pro power amps or seismic audio bass cabs?

hi, ive been playing bass for a while now and was thinking of going to a rack rig i was thinking of a sansamp rpm'with a sonic maximizer,and i am looking for a furman with tuner .i am looking at a seismic audio stack 4x10 400 watts @ 8 ohms 1x15 300 watts @ 8 ohms .can someone give ther opinion on how much power i will need' and a good amp .i was thinking running parallel out or dose anyone have better ieda