Hi Guys,
I took another look at the schematics on LTspice based on the last version by Saddevil. I removed the main rail cap multiplier and reduced some bulk cap values to keep the board smaller. The bias current is running pretty hot at 824mA (412mA per device) for about 90W dissipation per channel. Here is the schematic I am working with:
Look at what we get for performance. At 8Vpp into 8 ohms (1W) there is almost no distortion.
At 50Vpp into 8ohms it still is very low:
At 80Vpp into 8ohms (100W) I am getting THD of 0.001621%.
These are kind of crazy low numbers, that will be larger in real life but these are some of the best simulations I have seen for an 11 active device amp.
I took another look at the schematics on LTspice based on the last version by Saddevil. I removed the main rail cap multiplier and reduced some bulk cap values to keep the board smaller. The bias current is running pretty hot at 824mA (412mA per device) for about 90W dissipation per channel. Here is the schematic I am working with:
Look at what we get for performance. At 8Vpp into 8 ohms (1W) there is almost no distortion.
At 50Vpp into 8ohms it still is very low:
At 80Vpp into 8ohms (100W) I am getting THD of 0.001621%.
These are kind of crazy low numbers, that will be larger in real life but these are some of the best simulations I have seen for an 11 active device amp.