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
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