dsavitsk
MOT: ECP Audio
- Joined
- Aug 3, 2003
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Quote:
Nope, it's based on the Espressivo or more specifically, Doug's Less-spressivo.
There are several L'espressivo articles which might not by obvious from FA's link. Try here http://diyaudio.ecp.cc We changed the name for this amp as I have not been able to contact the designer of the original Espressivo to get his blessing for the name, and rather than step on toes, it seemed easier to just change things.
Also, the OPTs in this design are custom made and have both 32 and 300R taps. This is fudgeable to an extent, so any sort of Low Z phones, from 15 to 50R are fine on the low tap. Similarly, a range is fine on the high tap. For 600R phones, I made an adapter to put a 600R resistor in || resulting in a 300R load.