Just an awesome package! Purchased with ST-500mkII and W4S Sonos Connect 96k Modified. Playing system through a pair of 25 year old KEF C-40 speakers that have never sounded so good, they've got new life to them as never before heard. As I mentioned to [you] in a follow-up call within days of receiving the W4S equipment, I have rediscovered music I've played many hundred times over in the past. Hearing instruments not heard before. The "sound stage" is almost visibly apparent. And I thought my 30+ year old Apt-Holman equipment was the epitome of great sound! Well done! Keep up the great work.