Upgrade Vandy 3A's or get larger amp?


I'm driving a pair of Vandersteen 3A's with 65wpc; far below the recommended power of 100 wpc or more. They sound fantastic even with this limited power, but I know I can do much better. I'd appreciate hearing from those who have upgraded their 3A's to 3A Signatures. Is it a substantial difference in performance for the $850, or would I be better putting the money towards a larger amplifier?
dwpc
Do you prefer solid state or tubes?I've owned Vandersteen's for nearly nine years before upgrading to Merlins.As good as the Vandies are,they overall are somewhat colored in respect to the Merlins.It simply is a matter choice vs dollars.If you plan on keeping the Steens,I'de consider an amp like the VT100mk2 or 3.Used they are a good deal and the Vandies love tubes.Just ask Mr.V himself........
I had my 3As up-graded to sigs a year ago and don't regret it. As noted in the above posts, it had the effect of opening up the whole upper music range, and the soundstage.

But really, over time and as money permits, I'd look to up-grade both. I can say that in a medium sized room that the McCormack DNA-2,1, and .5 all work very well with the 3As and all have a stiff enough power supply to control the bass well at reasonable listening levels. Good Luck. Craig
Aloha!

I own 2ce sig. driven by my audioprism debut tube amp 35w a channel;the amp is powerful enough to drive them nicely and loud enough to my liking;lying around I also have a pair of unused meitner mtr-100 monoamps at 100w,35a/channel,I decided to play with them and use it to passively biamp the LF of the speakers,the added current made the music amazingly more open and detailed,with no discernable distortion in the midrange either,without going into details with the bi-amping subject I think from my experience you certainly can benefit from added power for your 3As with just one amp of good quality;money wise you could as well spend the money to upgrade and from what the other reviews are saying it seems to sound just as great.
Don't think you can go wrong either way,eventually do both when the funds permits...:)
Thierry.