They sound fine indeed, but only after listening to them with a sub you notice what you'd missed before.what would you say about 8020s? I have a pair that I really like but think they need a sub, which I haven't picked up yet.
I use a cheap Kef PSW2000 sub under my desk which I got for a pizza, in parallel to the 8020a which are set to 80 Hz highpass. Measurements with the Umik 1 revealed that I didn't need to apply any EQ. Nevertheless, although this sub certainly isn't the best, the resulting SQ is also certainly better than without sub. So IMV adding a cheap used sub for little money is worth to explore.