Hafler P7000-Inspired Amplifier

November 2023
StatusCompleted
Circuit familyHafler-inspired / MOSFET
Photographs29 full-size gallery images
Downloads3 local design and reference files

Project Notes

A simplified recreation inspired by Jim Strickland's Hafler P7000 and its unusual push-pull VAS. The hardware worked closely to the simulation and was completed as a two-channel amplifier.

diyAudio discussion

Photo Gallery

20231025 221052
1. 20231025 221052 		20231025 221107
2. 20231025 221107 		20231025 221112
3. 20231025 221112 		20231027 124642 HDR
4. 20231027 124642 HDR
squares 34kHz
5. squares 34kHz 		20231027 124736
6. 20231027 124736 		square 100kHz
7. square 100kHz 		20231027 124826
8. 20231027 124826
20231027 124837
9. 20231027 124837 		20231028 152344
10. 20231028 152344 		hafler 1khz fft
11. hafler 1khz fft 		hafler 1khz thd
12. hafler 1khz thd
hafler heatsinks
13. hafler heatsinks 		hafler kolinummi
14. hafler kolinummi 		hafler mosfet.06
15. hafler mosfet.06 		hafler olg
16. hafler olg
pcb2
17. pcb2 		20231027 124624 HDR
18. 20231027 124624 HDR 		20231025 221125
19. 20231025 221125 		20231025 221123
20. 20231025 221123
20231025 221100
21. 20231025 221100 		20231025 221048
22. 20231025 221048 		20231027 124901
23. 20231027 124901 		20231027 124713 HDR
24. 20231027 124713 HDR
20231027 124651
25. 20231027 124651 		20231027 124637 HDR
26. 20231027 124637 HDR 		bad amps box
27. bad amps box 		pcb1
28. pcb1
hafler hawk 06
29. hafler hawk 06 		     

Design Files and Documents

Documents and notes

FileSize
doc\hafler_p7000_schematic_low_res.pdf 301 KB
doc\Hafler-P7000-pwr-sm.pdf 446 KB

LTspice simulations

FileSize
hafler_mosfet.06.asc 16 KB
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