I am in a market for a new DAC with budget of $500. I keep reading good reviews of the Topping D30 DAC plus some technical measurements showing its edge over similarly priced DACs. Are there any other DACs that I should be considering with my budget? I do not need or want a built-in headphone amp. Balanced outputs would be a plus though probably hard to get in a new unit unless I go used. Though I have seen an older Emotiva's with balanced outputs that I could buy used.