More Information on the new UcD Amplifiers

Jan-Peter responded to more diyAudio inquiries with the following information:

We have taken our time to review a lot of different brands of capacitors, the caps we have chosen perform extremely nice. To be honest we are very happy to find such a good performing capacitor.

The complete list of changes are:

• Audiophile version of the UcD Modulator (small PCB).
• using Mini Melf resistors and NP0 capacitors on critical places in the Modulator and around the buffer op amp.
• Audiophile decoupling capacitor, 220uF/100V. (with own printing)
• PSRR improved of the local power supply regulator for buffer stage.
• Audiophile AC coupling capacitor in input stage.
• THD further reduced.
• improved temperature stability.
• all potentiometers are Sealed Bourns 3362 P.
• optional a soon-to-be-released extra 12V full discrete regulator with extremely good specs.
• and we will use the LM4562...we love this op amp...

UcD180HG extra updated:

• better power FET, lower gate charge for faster switching/lower THD.
• the same type of output coil as the UcD400ST/AD/HG

In about 3~4 weeks we will have them available.