CD 10 or CD 11 enhanced version ?

“Hi , the balanced output are not working , can you have a look what is wrong ?!”

Okay 😉

Glue and Plastic

Missing SMD reistors to orignal output stage

The missing reistors in diagram

Let see if this High-End modification is a improvement 😉

19 kHz and 20 kHz creats a tone at 1 kHz at – 40 dB

Multitone with lots of harmonics in spectrum at -70 dBfs

Close-up of the resitors from the High-End modification

Took the modification out of the player

After rebuilding the DAC board  and removing the modifictions the THD is now 0.0019% 🙂

Much beter harmonics and idle tones at -120 dBfs