Speaker polyamory -- or, stories about getting a second set to alternate with your primary

I have a minidsp between my pre and power amps, For my usual quite high volume listening it is in and set to get rid of some really bad room bass. Further by small very excellent Audio Physic Sitara 25 have the bass restricted to above 60Hz and the ports plugged. The bass is performed by 2 subs attached via the minidsp. If, when we have family or guests for any period and I do not use the volume so aggressively (and actually change the music I play), then the dsp comes out as do the plugs in ports. At the lower volume I don't have the horrendous base boom, its like having two completely different set ups.

Recently switched from $30K floorstanders to Quad 57s. 
95% sure I will sell the big speakers. Most of what I listen to is small scale that sounds magical with the Quads. And how they pull you in compared to big boxes that throw the music at you. The more I listen to the Quads, the less I want to hear boxes.

Only at night watching TV through the system could better hear the big bass and explosions with the big boxes. Although not really into changing the speaker cables.

Interesting divergences here. Some think that speakers are seeking to get the sound "right" and so there's no reason to have a system B. (Some think I'm asking about replacing their "A" system. That's not the question.)

Others see sound presentation the way many see food -- Italian food one night, Chinese another -- their differences can both deliver excellent dining and one cannot eliminate the other. I'm in this camp. Give me variety in food, music, audio, movies, novels, etc. This is art, not science (for me).

Speaker wise, both Tannoys and Eminent Technology LFT 8's are on my list. Also, Devores.

I'm curious about the punchy "liveness" of horns, the efficiency of concentric drives, the spatialization of planars and ribbons.

I have B&O, Kef, Ohm, Klipsch and, gasp, Bose 901’s.  Each has endlessly fascinating response to the rooms they are located.  I don’t regard one better than the other, only marvel at the differences.  Switching hardware has similar results and impact.  I will commonly listen to one track in one room, then hustle to another room with a different setup, and listen again to that track.  I never tire from this comparison.  I’ll also swap speakers in the same room and enjoy that comparison.  I could not be happy with just one setup…I’m spoiled for sure.