I have ML Summits, and my room adds some nasty bass nodes. I happen to have a Denon 3808 (for HT use) and tried the Audyssey MultEQ XT with my Summits. To my ears, it did an admirable job in taming the bass, with little loss of musicality. Ultimately, I plan to add some bass traps and acoustic panels, and hopefully won't need to employ EQ. I suspect Tact, Lyngdorf, or DEQX would likewise work for your Quads, but optimizing acoustic treatments first is what I would suggest.
Room Correction Systems and Electrostatics?
I have a pair of Quad 2905’s driven by Valve Monoblocks, controlled by a Valve Pre, being fed by CD and Vinyl.
My room is new to me and I am finding a significant lift in bass energy at what I think is around the 40 - 100Hz region.
Would a Room Correction System such as Tact, Lyngdorf or DEQX control this when you consider that the Quad’s have no actual crossovers?