Ok Benchmark DAC 3 arrived and I can hear an improvement over DAC 2. Ultra clear with lower noise floor or more black and slightly more dynamics.
I am happier with the DAC3 and it seems more like the revelation when I first heard the DAC1 to my ears.
So my two cents is buy a DAC 1 used cheap or spring for a new DAC 3 but avoid DAC 2 if you like details and clarity and dynamics. The DAC2 seems a little too polite or polished for my taste - so it may be the preferred option to some listeners.
My taste is towards live dynamic sound so again YMMV depending on your ears.
I am happier with the DAC3 and it seems more like the revelation when I first heard the DAC1 to my ears.
So my two cents is buy a DAC 1 used cheap or spring for a new DAC 3 but avoid DAC 2 if you like details and clarity and dynamics. The DAC2 seems a little too polite or polished for my taste - so it may be the preferred option to some listeners.
My taste is towards live dynamic sound so again YMMV depending on your ears.