These new Sennheiser HD 620S look very interesting, nice bass response and overall tuning for £299, I hope we see a frequency response on the B&K 5128 soon Specifications here

I see Archimago has a new listening test using 3 mystery dac’s, the difference in cost between them is 100x so it’ll be interesting to see if if there is much, if any difference when I listen. (I’m betting I can’t hear any difference at all). Perhaps this fact might encourage you to listen for...