I have no skin in this, but I have to say that I think you would have been better off not publishing this weird document. Sounds like the DAC in your low end models makes some serious compromises in order to save money …
"It basically means we have found an optimal sampling frequency for the DAC implementation we use. The benefits of this far outweigh those of bit perfect implementation if you are on a more limited budget. "
What is this secret optimal frequency? Sounds like you are not oversampling data at all like most DAC’s … and the thing about not being bit-perfect is odd to say the least.
Just don’t get it … I think it will create more questions than answer anything.