The A8 was Bang & Olufsen's first foray in to the lower priced echelons which started life as a Bang & Olufsen BeoSound 8 and became a "best seller"
It was hampered by the 30 pin dock connector and the technology was changing quickly with streaming coming in to more main stream, so naturally it only had a limited life. Albeit changing along the way as the A8 and then with the changing dock connector.
I think therefore it was a bit longer than 3 years.
I am shocked to see the end of the A6 , not only cos i have one, because it's a great sounding stereo system. I looked on the BeoPlay site and it's gone.
Maybe they are beginning to get rid of the multiroom products from BeoPlay and bringing them back in to the Bang & Olufsen fold. Perhaps signaling that BeoPlay is just headphones and local BT audio.
Or there is going to be something else along the way.