Nathan Amp ID40
Nathan Amp ID40 is a “challenge design” raised by a group of hobbyist, audiophile and purist from the www.elab.ph forum, where they question which one is the best :
- a PNP differential amplifier at the input stage and NPN VAS, with DNY40W, or
- a NPN differential amplifier at the input stage and PNP VAS (Nathan Amp ID40)
Nathan Amp ID40 is basically called, Inverted DNY40W.
Here is a picture of the DNY40W with a PNP differential amplifier and NPN VAS, check this link for more Information : DNY40W Project
Here is a picture of the inverted version with a NPN differential amplifier and PNP VAS, this is a prototype version with the green color pcb, the final one that I can proudly offer to you guys is the red one
Final PCB design
Would you like to see the Nathan Amp Baby?