iNuke 1000DSP settings for Bass Pump III

[Skswat]

Hello,
I would like to get some advice how to setup iNuke 1000DSP to work well with 2x Bass Pump III transducers. They are rated for RMS capacity 50 W and Max. audio capacity 80 W.
What should be the maximum output set from the amp to not cause any damage?

Im also thinking about more stronger Sinustec ST-BS 250, which is 4 Ohm, 100W RMS, Max. Audio capacity 200 W. Is it noticeable difference in power or its just unnecessary overkill?

Any advice is welcome