I always wonder if those users who perpetuate thee idea of not using your subwoofer to the fullest have ever tried it. There’s a desire to maintain the purity of the main speakers without affecting them by using a subwoofer. They end up getting a fraction of the benefits for the sake of audiophile purity. It's a shame because what they miss out on is so much more than bass.
As someone with hands on experience, and after getting plenty of positive feedback from A’goners who have actually tried it, I believe that most everyone who high passes their main speakers, via a line level crossover of some sort, finds it a wonderful end-result.
In particular with small speakers, removing the two lowest octaves can greatly reduce the distortion, not just across the bass but well into the midrange, so the speakers sound more transparent with improved soundstage, and eliminating the bass also increases the speaker’s dynamic range a great deal. It’s a really life-changing experience.
Even if a speakers output drops it doesn’t mean the cone displacement does, quite the contrary, an effect which is made worse with ported speakers.
If the OP high-passes the satellites and can carefully integrate the subwoofer, perhaps with the help of DSP they will be amazed at the new super-sized speakers they own. :)
Having said that, the OP could experiment with a couple of different capacitor values, say one for 80 Hz and one around the speaker’s natural roll off, which I think is around 55 Hz, or around 0.06 uF, so you could add an 0.022uF to the 0.047 uF and get pretty close. :) With some jumpers you can experiment in real time.
