Any experience with the Proac Response 5?

Hi - I used to own the Response 4's and frankly they were one of the most disappointing speakers I have ever owned. I bought them and sold them for $9,000 USD's. They absolutely MUST be driven by tubes ( preferably triode ) and they MUST have a big room - they need to breath. I would think that the 5's might actually be a superior speaker - I own 3.8's right now, and I love them, much more musical IMHO, than were the 4's. just my honest opinion. (p.s. I have never heard the 5's)

how long ago were they bought and sold for $9000usd?

I am trying to figure out whether I should get the D38 for about US$5800 or the response 5 for US$8500.

Was considering the Vienna's Mahler too. At 2nd price of US$6500 though I thought it's a bit steep.

From what I read, the Response 4 wasn't that great of a speaker. I haven't got to listen to the 5, but I can say that the D80 sounded great. Great range and detail, absolutly a large speaker. I heard them in a large room.

They are listed at about the same price in the Blue Book (~7300).