I dont wish ill will toward anyone jnless they hate vacuum tubes, thats a bridge too far. ;-)
If you like tubes take a look at Berning Zotl amplifier...It is the only upgrade i dare to wish for my Sansui...
I cannot afford it for now and perhaps forever but they are not so much costly anyway.... This Berning look like a genius.... A completely new tube technology...It is not often that someone rethink tube ....
I never listen to it, i only dream after reading all reviews and articles...
I dont need upgrade but sometimes something tempt me more than tacos and jalapenos....
Longevity tubes, no heat, and power...With my past tube amplifier i hated the short life of tubes, and the heat , no more with Berning...
The S.S. Sansui AU 7700 i own has already a tubelike marvellous organic sound....The Berning tube ZOTL will be more Solid State sound.... A paradox.... 😁😊😎