Have been living with the d1-tube for about 5 years and couldn't be happier. I haven't spent time comparing it with other DACs at this price point, but for what it's worth it's hard to imagine anything besting it and I can't imagine wishing to upgrade to an alternative. Their more recent development of amplifiers and speakers also look promising.
Who has has a totaldac DAC?
If you have one, or have listened to one, Please share your thoughts and experience. If you specifically have the d-1 tube, that would be perfect. If you live within driving distance of Burlington, VT, please invite me over to hear it, and I'll bring some good single malt 😉