I am now starting my final " leftovers budget" build. After collecting "stuff" and building great gear since 30 years ago. I have now amassed leftovers that I will now use for a "final" use all of it build for a headphone amp. Then that's it. My eyes are too weak for these SMT stuff these days.
Here is what I have leftover over the years.
Improved Sulzer Power Supplies removed from some dead CD players.
AD844 removed from Assemblage DAC
AD811 removed from modded POOGED CD player
Stepped resistor Attenuator replaced by a ladder unit I purchased off Ebay
etc. etc.
I am going to put together a composite amp using the same technique in the 744-811 duo using the feed from the 844 before the output section into the 811 buffer which I believe can put out 150ma.
I can put a current limit resistor before or after the feedback network tap.
I see circuits using around 20 ohms after the feedback but I have heard that I could put around 100 ohms before the feedback and retain the low output impedance but retain current limit.
These are to drive HD598s
Which is the better way? Any suggestions
Here is what I have leftover over the years.
Improved Sulzer Power Supplies removed from some dead CD players.
AD844 removed from Assemblage DAC
AD811 removed from modded POOGED CD player
Stepped resistor Attenuator replaced by a ladder unit I purchased off Ebay
etc. etc.
I am going to put together a composite amp using the same technique in the 744-811 duo using the feed from the 844 before the output section into the 811 buffer which I believe can put out 150ma.
I can put a current limit resistor before or after the feedback network tap.
I see circuits using around 20 ohms after the feedback but I have heard that I could put around 100 ohms before the feedback and retain the low output impedance but retain current limit.
These are to drive HD598s
Which is the better way? Any suggestions