... just to complete the info above,
the latest re-design of the original Hafler amp has been made by Bob Cordell, pls. refer:
http://www.cordellaudio.com/poweram... upgrade,the heat sink and under the main PCB.
With regard to Mr. Dudek's DPA amlifiers, the baseline of his amps from the 90's DPA110-DPA220-DPA440-DPA880 (BJT) and DPA330 (latFET) - DPA380(V-MOS) was further developed in the 00's in DPA222 (BJT) and DPA386 (V-MOS). For more reference start here:
https://www.diyaudio.com/community/threads/pavel-dudeks-upupa-epops-amplifiers.28683/
the latest re-design of the original Hafler amp has been made by Bob Cordell, pls. refer:
http://www.cordellaudio.com/poweram... upgrade,the heat sink and under the main PCB.
With regard to Mr. Dudek's DPA amlifiers, the baseline of his amps from the 90's DPA110-DPA220-DPA440-DPA880 (BJT) and DPA330 (latFET) - DPA380(V-MOS) was further developed in the 00's in DPA222 (BJT) and DPA386 (V-MOS). For more reference start here:
https://www.diyaudio.com/community/threads/pavel-dudeks-upupa-epops-amplifiers.28683/
