Used vs. new

it's a tricky situation since I have no way of listening to either one to see what I like better.

Thank you so much, excellent feedback ! Yes I am very new at all this. I first heard the B&w speakers about 20 years ago. And haven't stopped thinking how great that sound was , .even though I have never listened to music on any other nice speaker , my heart is set on b/w.  I don't really have anywhere to go to listen and compare the different b/w speakers to see which one I like best... so I asked   here for advice . sounds like with budget of 12-15k its better to go with the D3 used vs the new 804 d4, and that's fine with me , and by reading and researching I bought the Hegel 390 integrated amp. and just hoping it will work well with the B&W's. Thanks again, and  I think I will get the 802 D3 or 803 D3. 

one last question- Keep hearing that the b&w speakers

are hard to drive.  What exactly does that mean ?

Thank you everyone, really appreciate all the advice and suggestions . I definitely

have so much to learn about all the high end audio, and looking forward to it.

I have had so much fun just researching all this.

so thanks again.