Hello
The U1 is really a fantastic piece of kit .. nothing to criticise about , Worth every penny , simple to use , clinical, but musical
The Aurender N100 is swwet , less detailed , but nice sounding
To be honest , no way to chose between the 2 , the u1 being in a differrent level of detail and soundstage
Then it's the price gap ..
if I had to buy a product , an all in one , i'd take the A1 ou S1 .. because of total mqa capacity
But for a DAC .. choice is not so easy
@craiH : which dac are u usiing ?
USB or SPDIf or AES ?
Cheers