further inquiries to the manufacturer of my DAC, (Benchmark DAC 3B), I have this response....
From engineering and designer of the DACs:
Yes, the DAC1, DAC2 and DAC3 converter have the UtraLock, UltraLock2, and UltraLock3 jitter attenuation systems that remove incoming jitter. There is never any jitter-induced distortion no matter what cable length is used.
we can chose to believe what we wish, and/or trust our ears....thank you