Reply with quote #16
Yes, thanks very much Kelvin, for an awesome reply and you have helped me a lot with this project and my follow-on questions.
It's a lot of fun to try to understand the design and concepts (over my head but I like to try). So now I understand that I am driving 600 ohms at 2:00 volume using only 100mW (where the 300Bs idle). Somehow, due to the design, the output decreases for higher loads, which necessitates a higher volume position, but it makes sense for sound quality and I'm not "over driving" my MP. Pretty interesting. If I'm following! Thanks for confirming that this effect is by design. Drew
Reply with quote #17
Thanks for the update on your Beyer/MP results Drew.
I have the BeyerDynamic DT880s and they sound amazingly good driven by my Twisted Pear Buffalo 3SE/Legato DAC. I really ought to pull my finger out and get my Masterpiece HPA put together.
Reply with quote #18
Originally Posted by
Drew So now I understand that I am driving 600 ohms at 2:00 volume using only 100mW (where the 300Bs idle). not exactly, " The 300B tubes idle at 100mA" -Kelvin https://en.wikipedia.org/wiki/Ohm's_law