vandersteen 5 to 5a


would like to know if any qne has had this up-grade done to there own 5's.if so,was it it worth the cost?[5000.00 approx.]this is still being advertised as a owner preformable up-grade,but the factory says it doesn't offer this now.was it ever offered?what could be so hard about parts swapping ?any input regarding any of these ?'s.thanks.
machine
I have owned both- I upgraded my 5's to 5A.
The first thing that struck me when I got the 5A's from the factory was- they retrieve more low level detail- that, for me, was the most signifigant improvement. They do everything slightly better though, but low level details is what I noticed most.
For the record, I use for gear:

Linn LP12 /Ekos/Arkiv/Lingo/Cirkus
AudioQuest LeoPard tonearm cable
Aesthetix IO, dual volume control
AusioQuest Cheetah interconnect
Theta Citadels
AudioQuest Volcano speaker cable

Will
thanks for all feedback.still hard to decide if another 5700.00 is worth it.i will would have 11,500.00 invested at this point and there are some exceptional spkrs avail. for 5700.00.a tough decision.did any get to keep the components that were replaced?thanks again.
The upgrade is more than worth the cost. I was amazed when I got them and they worked in. The sound is at least 40% better IMHO. As for the parts, what would you do with them?
mikej.i would take the sub amps and build two sub-woofers just for fun,as i have other systems to play with.how long was your turn around time.thanks.
The power supply is the only change in the sub amp. You'd have to build the rest of the amplifier to do that... Probably not worth it IMHO. Just buy a pair of V2Ws or a digital Velodyne.