Obviously "audiophile" sound or personality is subjective. Since you are looking at the Adire DIY units- I've been told from more than one Adire dealer that the HE spks are geared more towards music vs the 81's or 281's. I went with the huge ported HE12.1's. From there I upgraded the caps and resistors and added 'just' the right amount of tweak to the tweeter resistor to get
my desired level of top end or brightness. (very easy upgrade) This relatively cheap upgrade made a dramatic difference and I am now convinced that no other unit under 2k-3k can match my DIY's.
Many people will disagree with this. I like a robust, efficient sound that is often seen in metal tweets or horns. I also like my mains to reach mid to low 30's -- this way I don't need the complications of a sub.
If I had to have a pure 5.1 setup I would prob. go with the AV2's or AV3's with a bass reflex Tempest.
There are guys on this forum that will not consider a spk 'audiophile' quality until you get to $5k spks or much higher. Then you get into Martin Logins, Dynas, etc.
It all depends on your desires and budget.
Until I pass my NAPLEX I will be stuck with DIY and a sub 1k budget.
What's your budget? What kind of sound are you after? This can help us recommend a kit perfect for your needs.