Selling old, going digital direct ?

"Might lose sound but I'm 68 and there's big difference in weight."

What are you doing with your system, putting it away after each use? Just leave it on the rack and let it support the weight.

If it were my system to upgrade, I would keep the Quicksilvers and get a preamp and a dac, or just get a dac with a volume control. If you go that route, you will gain sound quality, not lose. (Providing you do a good job matching whatever new components you end up buying. You shouldn't have any problems. There's a lot of great products at all prices to choose from.)

The weight is not the main reason... I still work-out and swim laps 5 times a week, also still toughest guy on my block (why I moved from Chicago to AZ. I'm not trying to upgrade, just looking for a new toy to play with. I take reviews with a grain of salt... NAD C 390 DD got great reviews and I can throw it when I get mad. I'll be deaf or dead in a few years anyway... tubes are really hot in AZ even with central air in summer.

Joke:
guy sez to gal "do you wanna 68?"
gal sez "what's a 68?"
guy sez "you do me and I owe you one"

If you want a new toy, get it first to try out before you get rid of old faithful. If you're looking for something to throw when you're mad, computers are better than stereo's.

68's the new 48...you ain't dead yet. You're more likely to get Alzheimer's.