currently running a $62 Fosi integrated, $149 WiiM streamer, pair of Avalon Ascendants - quite surprised at how good it sounds...and no attention given to placement, acoustics etc ...
Interesting!
I own a Fosi SK01 headphone amplifier with the AKG sextett ...( for my computer use it is not my main headphone amp) I used a Douk P2 tube preamplifierfor the Fosi headphone amp and as pre for my active speakers.. Price 60 bucks too ...
It is so good for peanuts price that i will never upgrade it save with a very high end design headphone amplifier .. Why ?
Because i will be afraid to buy one at 500 bucks compared to this one i paid 60 bucks so good it is...Who want to pay 500 bucks for a marginal upgrade or just changing 4x 25 cents for a dollar...
Here i will upgrade it only with something very high end at more than 1000 bucks..😊
And anyway in upgrade process all gear pieces must pertain to the same quality design/price scale generally speaking... No one use generally a 200 bucks tube in a 25 dollars tube amp...
But there is exception to this rule as your short interesting post reveal : the Avalon ascendant driven by a 62 bucks amp with success it seems ... 😊