Hi hypnos1 I had the Oppo HA-1 which used the 9018 chip and I was not a fan I personally found it way to lean and bright but that could have been just that DAC I never tried another one with that chip, and to make matters worse I was using the HD800 at the time (ears bleeding) I liked the 9017 chip better... And the 9038 Pro chips does very well in my book. I am now comparing it with my new Holo Spring 2 KTE R2R DAC now so far it is a love hate depending on what gear you are using it with. And as of now the Spring 2 KTE does not pair very well with the Euforia, but with my Yamaha A-S3000 and Dynaudio Special 40's speakers sound really amazing and never sounded better. But too be fair to the Spring DAC only been using it for a couple of days still burning in and it is starting to sound allot better.
Yeah, L87...implementation was King with the Sabre 9018. And it would appear that not very many manufacturers got it right lol! And very dodgy for the likes of the HD800!! My Audiolab 8200CD managed it very well, and my subsequent custom tube-based DAC even better (long live tubes lol! ). But both surpassed by Hugo2...in my system.
And as with your Holo Spring....synergy is everything! Hope all stays together well with your Euforia...CHEERS!