Your sub experience: Easy or hard?

My first experience with a pair of subs was difficult to the point where the best spot still resulted in unsatisfactory bass. The best spot was hard to find with asymmetric placement but neither in a corner.  The bass was flat except for except a 60Hz vertical mode. I even tried putting the subs on five foot stands to negate it with partial success. This was under the direction of a remote acoustician. A crossover I was reluctant to purchase fixed the 60Hz issue. I recently installed nine quasi bass traps but have yet to remeasure or recalibrate. Listening, thought, the bass is fixed to the point where I like it. I know there is a delay  between the subs and main speakers. While there is that room for improvement, I do not care now.  My room drives me nuts honestly. 

@prof 

Good post. I can relate to it better than those who report outstanding and far-reaching benefits to subs. The subs simply fix a wide and deep bass dip that is not possible to fix with speaker or listener placement.  I also like to play with the CR1's bypass. A tonal shift that came along with it was solved by flipping the ground switch. Not saying that was your issue, but I do understand your preference. 

Very difficult if not impossible. That is why Goldenear speakers have the built-in sub...

As Mr. Gross claims by slightly blending the subwoofers crossover region at a higher frequency to be beneficial in matching the main speakers lower frequency presentation. Simply by using my subwoofers Auto EQ feature followed by manually drag and dropping the subwoofers Frequency Response Parameters by ear. Easy.

Just as easy was determining the rooms ideal subwoofer positions which are, unlike Mr. Gross' claim of within (or near) the speaker, one of the worst locations in all of the rooms my system has occupied. 

I have been playing with various sub options, 1 sub, then 2 subs, then 1 large sub, RCA preamp in, High Pass speaker hook up, various manufacturers. I finally think I have found a good sounding set-up with 2 REL T5x-8" down firing subs using the high pass speaker hook-up, recently purchased. Very easy to set up using the instructions provided and some supplemental reading online.  I am in the process of negotiating for plant space with my Number 1, to move them around somewhat (always a bit of a compromise) and making some minor adjustments to volume and crossover. I am partial to more of a British sound, so more of low end fill, rather than "big", is what I have been chasing. After playing with apps and making continuous adjustments with other subs, these subs seem to be fast enough to not muddy up the midbase and blend in very nicely. I was almost ready to through in the towel on subs and start looking for a three way speaker system again.