The most beautiful Integrated Tube amp?

Pathos Twin Towers and Viva Sentesi.

Manley Labs Stingray

If it is truely appearance that you are looking for, you must do yourself a favor and check out the Manley Stingray. Without a doubt it is on of the most head turning pieces of equipment you will ever see, and, if you believe what the magazines say, it sounds great to.....

I agree with above. - also see the Cary sli80, beautiful sound and appearance, priced reasonably

The Jadis Orchestra Reference is one of the most beautiful amplifiers you can buy. 24 karat gold over brass fascia and knobs, stainless steel, real wood, transformer covers in black and 24K gold, exposed tubes and capacitors. Definitely helped in getting my ex-fiance to approve the purchase. It looks right at home in the most elegant decor. On my side it was the best sounding tube amp I could find. Pretty much bar none. Many things going for it soundwise. Terrific bass, lots of clean, dynamic power, incredible refinement and detail, neutral. Bass and treble controls. Ability to tailor sound to a wide range, vis a vis the acceptance of KT90(come with the amp)/KT88/6550/EL34/6CA7/E34L output tubes. I would also have been happy with an Air Tight, but they are much more utilitarian looking(so not of your interest). Cary and Pathos are nice looking amps to my eye. There are also a lot of nice looking exotic amps, but they are harder to find.