Best upgradable system components for under $6K


Hello All,

I plan on upgrading my system with components that I can live with in the short term and the long term (hopefully so I don't have to keep upgrading components as I upgrade my speakers).

I currently have an NAD 356BEE integrated and while it is entry level I must admit it sounds very nice. My room is 14'8" by 20'4" and I currently have a pair of Legacy Classics (not Classic HD). My goal is to make my next big purchase on components in the $6k or less range but I would like to make it a once and for all purchase. In other words I'm looking for something I can live with for 15-20 years without worrying about upgrading.

I would prefer to stay solid state and don't mind having an integrated or pairing separates. New or used also doesn't matter as long as it is a great bang for the bucks. My ultimate goal is to one day be driving a pair of Acoustic Zen Crescendo or Vandersteen Quattro speakers. A 200wpc + consideration would be preferred but I’m flexible on that too lol.

Finally my music selection is a bit diverse. I like jazz, soft rock and new age. Some of my favorites are Dave Matthews, John Mayer, the Wallflowers and John Tesh. I value your opinions highly and would love the community's input on the best component upgrades for my $6k budget.
xerotrace
I wouldn't be dismissive of every active speaker. As with all audio products there is a hierarchy and a spectrum that exists. A trusted audiogon member purchase the Avantgarde Zero active system several months ago and says it's really quite special. Based on prior experience with him I have regard for his opinion and sonic impressions. Of course you'd have to hear it for yourself, but that applies to everything audio.Is it better than Vandy and Ayre? who knows, you'd have to listen and decide.
A well designed active system will out perform an equivalent passive system every time. Actives allow for better implementation of crossovers and improved synergy between the amp and the crossover/drivers. Examples are JBL, ATC, Pass and Gradient.
To your question about the Moon amps, they're made by Simaudio in Canada and are great products, impeccable build quality, ergonomics and sound.

I've owned three of their integrateds and two DACs and they've been among the most satisfying pieces I've had in 40-something years of swapping out audio gear.
Used BAT VK51se -> Event Opal active studio monitors(near 500w per each) will get what you need ez.
I like the approach recommended by ZD. I am surprised he didn’t suggest getting the Ayre preamp 1st and use your NAD as the amp until ready to buy newer speakers. I would think he would think it would make the biggest improvement in your system as it currently exists.