I have the Teac UD-503 DAC. Absolutely love it. I find the ESS chips detailed but tiring. The Teacs use an AKM Veritas chip that Teac engineers and AKM co/developed. It is smooth and detailed at the same time. It makes the ESS Saber DACs sound clinical while the Teac sounds like music. Plus you have a real remote, fully balanced output including headphone amp, full DSD support, choice of upsamplings and filters. See if it is synergistic with your system.