Hi, I use a Sony UDA-1 (DAC only), a Beyerdynamic A20 amp, and Beyerdynamic T1G2 headphones and I've been very happy with the result. However, I was wondering if it's worth upgrading my DAC without breaking the bank. I've read that according to one user, UDA-1's DAC is almost as good as Oppo HA-1. Is there anyone out there who has made some comparisons and has some more insights on how good the UDA-1's DAC is compared to other DACs on the market? Regards.