Focal vs Dali speakers

thats not large Bobrock. Still, a sub will benefit the situation. Though, placement will be important. You can probably experiment and get adequate bass performance. Try that, then see if you need a sub.

What speakers have a really good low-end?

I use a pair of FOCAL JMLab Nova Utopia Be which has preponderous bass and is superbly balanced across the entire audio spectrum. Incredible transparency and immediacy. Of course I am using Jadis JA200 monoblocks (tubed, KT88s) to drive these. Using a Jadis JP80MC preamp with only RCA inputs and no sub out. So I have a pair of XLR interconnects from my Audio aero Prestige SE CD player concurrently driving a Utopia active sub (with its own 1000 watt BASH solid state amp) to extend the lows below the foundation. I can not get the Utopia sub volume higher than a notch or two from zero for the right balance of ultra low-bass. The music can be seen, heard and felt.Talk of a moving experience!!!

What is your price range?

Price range between $1500 and $2500. Anyone like Linn speakers? They make good amps.