The best thing to do with your Wadia is to set the voltage as low as you can so that the volume stays between 80-100 to get the full resolution. Some people crank the wadia volume, then connect a preamp of some type to get full resolution at any volume, but this just degrades SQ in my book with all the added circuitry in line that just isnt needed. If your trying to get full resolution at much lower listening levels then chances are your not going to be doing critical listening anyway. And if your not having a critical evaluation its going to be 100% impossible to tell a difference of resolution regardless whether its a full 21bits at wide max volume of 16bits at the lower volumes, the ear isnt going to tell. If the Wadia is your only source, dont waste money on a preamp. Use that money to improve other aspects of the system.
