Torres Guitars were extremly lightweigt, about 1.2 Kg and lighter. The wood of the body of his guitars was nearly half as thin as todays Guitars are build.
I agree that there are examples of heavier good sounding Guitars. Yesterday I met a friend who owns a Ramirez 1a too, but Indian, lighter than mine, four years younger. When you play both Guitars, it seems his Guitar is louder and has more bass.
The diskant of the older one is louder, it is close to a Fleta above the twelves fret and has more Parts sounding Liquer like. But playing both, you might decide to prefer the newer one. When you are listening to both guitars in front of them, the bass is at the same level of noise but seems little more stable, say massive at the older heavier Ramirez.
It seems in general, that lighter guitars sound louder to the player and more perkussiv, but to the audience in front, they are not.
I own a very lightweight Flamenca wich is partly useable for Flamenco. I like it very much but I know for a Classical I would allways have prefered a more massive sound and feel.
On the other Hand, when you look at Guitars made by Armin Hanika, then you will notice that his most expensive Guitars, I played his 1A/FB, it costs twice as much as a Hanika 60PF, is extremly lightweigh and the bass dominates her sound too. It lacked a brilliant sound to me because of that.
The bass should under-paint the melodie and not dominate it. That is what my heavy old Ramirez 1a does best.