Do you think you need a subwoofer?

Raul, that Soundstage article is the exact description of my own experience on integrating subwoofers with ESL pannels, thank you, relieves another myth from the global audiophile conciousness...something is hard to fight against even if your own experience proofs the contrary. This article gives me some fresh air and I feel more comfortable not beeing totaly wrong.

Again, contrary to common belief, those Quads 57 have plenty of bass, very well controlled but needs right room placement. What extra subwoofer ads is absolutely not "more" bass, but a 3D projected sound image of the whole spectrum, when switching off the sub this holographic sound collapses instantanealy in a flat ( still coherent ) presentation. What Gradient or Mark Levinson did with stereo dipole subs + supertweeters was IMHO to correct supposed defficiencies of the pannels instead of trying to make shining their qualities; are they sounding like ESL 57 anymore ? I doubt it. The sub integration must be done with a touch of subtility just enough to make that "soundstage" appear, the sub must "disappear". It takes me a few hours to set up correctly this integration parameter. So using a second sub or better as many as 4 is a good experiment to try , but I will do it with very small subs in srategic places of the room, with very very small amount of "sub" effect, just a tiny little to boost the stereoscopic imaging of the pannels a step ahead.