What is wrong with a sub?

Good subs add an "atmospheric" thing to a hifi system that has to do with charging the room with frequencies that exist in real music played live, not necessarily chest thumping low notes although they can do that also of course. My my main speakers have a very accurate low frequency range that sounds excellent without subs, but dial in the subs and man...something is just there that ain't otherwise...orchestral music sounds like it's in a real acoustic space, pianos sound like hey, that sounds like a piano! Subs aren't and never have been "lacking respect" in the audio community so don't get hung up on low notes, simply enjoy something closer to what music is supposed to sound like.

I mix 2 RELs from the same UK made era, a down-firing 100 watt Q108MKII, and a front firing Q150e...the synergy and tonal similarity between these two is remarkable, and they sound great.

I had considered the "new at the time" Forte IIIs but I already owned two RELs so I went with Heresy IIIs (about half the cost of Fortes). I like the fact that a sub or two (or four) allows you to tailor the bass to the room’s quirks, and multiple subs work together to tame some room issues. "Full range" speakers aren’t gonna allow you to pull the low bass driver out of the box and put it somewhere else with its own controls, although that’s exactly what happens with a good sub. My RELs sound great with the main speakers running full range to their 58hz or so bass drop-off point, and these speakers display a nicely accurate bass to their limits, so overall it’s very satisfying and musically right. I tweak the sub levels a little here and there but very rarely need any EQ beyond that.