DAC End
by Andrea Ciuffoli - starting in the 2008
INTRODUCTION
After many time lost to explore the DAC world from the DAC 1.0 to the DAC Final I have found the end of this way.
The No Oversampling DAC give a more natural sound but if you ear the TDA1541 and TDA1543 seem to lose details.
The AD1865N-K with passive I/V give a perfect combination, natural sound and all the details.
So this project is the end of my DAC projects also if someone speak very well about the AD1862.
The AD1865N-K give the better performances with a 200ohm MK132 Caddock as passive I/V.
In this configuration the output signal is too low to drive any amplifier so I have design for the AD1865N-K the better output stage.
This DAC use a single ended vaccum tube amplifier with output transformer and no interstage capacitors.
To get the max sonic performances has been used the new amorphous C-core by Lundahl.
I have tested other output stages like the LL7903 used as voltage amplifier or as I/V conv. but the results was bad if compared to this.
http://www.audiodesignguide.com/DacEnd/index.html
