Holy cow there is no way your going to get 40hz out of a pair of 755s! Not even 15db down.
Upgrading my SET amplifiers?
I am very happy with my Wright Sound 3.5/Lamhorn/Lowther EX 4 combo, but I know that the amps can be improved. I was looking for a Berning Siegfried, but nobody wants to sell this amp used and new is not longer available. I’ve read good things about Art Audio, Wavelength, Exemplar and the like, but I want to know from people who actually own those amplifiers or other very good SET amplifiers. I am willing to spend $ 3,000 / 4,000 in this upgrade. If possible, I prefer to buy used. Your help is greatly appreciated. Pablo.