Anyone with a Hugo 2 or Quetest or really any other good DAC has a Carbon amp and a Stax headphone for metal? I really don't know which Stax headphone is the best for metal and I'm sure there will be mixed opinions. But I'm hoping that there are several others that have the Carbon amp, a decent DAC, and a Stax headphone. I just need to know which headphone you like and I'll see which one most people recommend. From a few days of research, I thought the SR-007mk2 (usa model) would be the best match, but some have told me that it can be muddy for a Stax headphone and to get the L700 or the 009S. I was hoping to save some money by not having to buy the TOTL Stax model, but if most of the people say that is much better and it's the best for metal, then I'd just buy it and not wonder every day what I'm missing out on. I'm old and have just enough cash to go with the best Stax offers, but if others say that the lower models are better at metal, I'd be thrilled.