Intermodulation distortion hump on Topping (and others)?

[solderdude]

https://www.audiosciencereview.com/forum/index.php?threads/ess-thd-‘hump’-investigation.5752/

 

[confucius_zero]

so is it audible or not?

 

[restorer-john]

so is it audible or not?

I wouldn't expect so, but it is just another example of cost cutting by D/A manufacturers these days. Wherever they can save a dollar and figure people won't hear it, they will.

There's nothing new about minimizing IMD in differential output single bit D/A converters by using differential amplifiers before the LPF and final buffer stages.

No wheels have been re-invented, Benchmark (John S) describe exactly what was done in the 1980s when properly engineered products appeared incorporating differential output D/As.

 

[daftcombo]

so is it audible or not?

Not audible imho.

 

[Fly2High]

I know I am resurrecting an older thread but what if the hump was in the audible range. How would it manifest itself?