I've owned Forte and currently have Razz. They are similar in the type of sonic signature but the Voltis are much better built and smoother sound. The bass of the Razz kicks azz.
Tannoy or Volti
I have a friend who has the Tannoy Prestige GRF 90 for sale he is moving out of the country for half price, he paid $29000 in around 2020 not made in China. I am upgrading my Forte IVs, I am also considering the Volti audio Lucera…anyone that has heard the Tannoy and any other suggestions which will be better would be appreciated….I have a few first watt amps and several tube amps…plus Jeff Rowland and Pass Labs amps..