D I G I C O D E 2.2 0 i n d e t a i l
Digicode is the name of all our digital to analog convertor.
First model was build in 1992 : multibit d to a convertor by 16 bits / 4 time oversampling filter and class one digital spdf receiver, output stage by two double triode (one ECC-83 and one ECC-81).
Digicode was built in one chassis with internaly power supply,one spdf input and a pair of analog output.
Digicode 2.18 was the second generation of our tube dac (1997).
This second up-to-date convertor was designed for high flexibility, modular pcb-board solution, externaly power supply for better s/n ratio.
Very close with our philosophy: class one spdf and aes-ebu receiver, mulbit dac AD-1865 (hi-resolution 18 bit) digital filter with low taps (near to nonoz theory) set-up decision by customer's by internaly dip-switch.
Two tubes on signal path now all ECC-81/12AT7, passive I to V converter.Great sound!
Digicode 2.20 is our actual model of hi-resolution D to A convertor.
As very close of 2.18, the model 2.20 adopted two mono Burr Brown PCM-63 convertor for 20 bits
resolution, around the PCM-63 is build a low level linearity circuit for better resolution for little audio signal near -70 db, so the little information of audio spectrum, Digicode 2.20 reproduce without hide the music detail.