Melbguy1,
Unfortunately, I have not heard the TSW Diva Ultimates. I purchased my DS brand new in the 90's and remember listening to the stock Diva. I would say that the stock DS were probably giving 80-90 percent sound quality of the Diva. The Diva has better bass, distorts less than the DS and possess better power handling quality. The Diva will require a much larger room than the DS. Both speakers require beefy amps to deliver enough current to let sing those speakers.
I am totally positive that my rebuilt DS would trounce the stock Diva, just with the Xover rebuild. However, if you rebuild the Diva (ribbons + Xover), I think the Diva would get back its edge on the rebuilt DS.
My 2 cents.
Unfortunately, I have not heard the TSW Diva Ultimates. I purchased my DS brand new in the 90's and remember listening to the stock Diva. I would say that the stock DS were probably giving 80-90 percent sound quality of the Diva. The Diva has better bass, distorts less than the DS and possess better power handling quality. The Diva will require a much larger room than the DS. Both speakers require beefy amps to deliver enough current to let sing those speakers.
I am totally positive that my rebuilt DS would trounce the stock Diva, just with the Xover rebuild. However, if you rebuild the Diva (ribbons + Xover), I think the Diva would get back its edge on the rebuilt DS.
My 2 cents.