Yamaha A-S 1000 & 2000 --- How Good?

Pubul57 - Your selection would depend on which sensory function you used to establish preference. Your eyes, your ears, your ego or your inner accountant might all direct you toward one of those two products or the other. I might prefer the Accuphase myself on some basis but I do not intend to ever test that preference. Due to web chatter I'm inclined to think that the 590 is somehow better - reputation carries a lot of weight - but I have the Yamaha already and it requires much less of my money than arguable alternatives so, for me, the status quo will prevail.
The Yamaha A-S2000 is a really nice piece. I can't testify that it is the nicest but I have owned several Rowland Concentras and this Yamaha holds its own in that company. N.B. - I have not compared them side by side.
I also owned a Krell integrated several years ago that wouldn't hold a candle to either of them in sound or build quality.
All I'm getting at, I guess, is that choosing your parameters might be a lot more important than choosing your product.

At the current prices available for the A-S2000 if you can fine one I would snap it up. The best built and sounding amp at it's current price by a landslide. A real audiophile amp that compares impressively with the snobbiest small brands. Don't let your ego waste your money. Buy the Yammy and spend the rest on speakers.

I'm totally agree with Kevmorse.
This is one of the best amp. you can buy for $$$$$$.
My running with JBL studio 530 and those speakers are Killers for $$$$$$.

You can get a GOOD.. {20% "PLUS"} across the board improvements with these a-s2000's after you do our QuickSilver GOLD contact enhancer.. male connector pins tweak to them!....

Before doing this tweak, you turn on the power on this amp and then you unplugged the power cable at the ac outlet and wait 24 hours before doing anything!!!!.....................

You just coat all the connector pins on all the circuit boards inside the amp with a toothpick. The connector pins are right there where you see all those cable wires hooking up on all those circuit boards there. You only coat the tips of these male connector pins using that toothpick. Some of these connections connectors have already been soldered to the circuit boards...with this amp you ONLY unhook the {WHITE COLORED connectors} hooked up to the circuit boards. In the back, they are circuit boards that are stacked on top of each other, you have to take all these circuit boards off to get to all these connector pins on each circuit board there. Behind the front face plate they a few WHITE COLORED connections connectors there to to coat too.

It takes about 6 months for this stuff to break-in fully!...

Now you have a amp that can play with the Big Boys and one of the biggest bargains your ever see in this hobby!!...

We believe we found the "Weakest Link with gear"!!!.......

We have done this tweak to ALL our gear and TV's with great improvements to everything we have tried it to!!....

"We believe we are hearing the music like the Studio Engineers meant us to hear it now"!!!................