However, every DAC and power amplifier combination may offer different results so I suggest you test these combinations yourself.
I switched DAC's and the noticed a slightly improved sound quality but not where it needs to be. As a result, I am researching a preamp/DAC.
It seems everyone has a different opinion based on their equipment and environment. Based on my experience, I have decided a preamp is required between the DAC and power amplifier for maximum sound quality.
I suggrst you you run your DAC direct into your amplifier and then insert a preamp in and see how it sounds. Please keep us posted. Thanks.