249 pages into this thread, I finally acquired the Sony TA-ZH1ES to measure which has a pretty common sound signature description of *not* being neutral.
Transparent via null comparison to a digital music source using PK Metric, but enough distortion to measure similarly to a Western Electric 300B tube product too...
www.audiosciencereview.com
Transparent via null comparison to a digital music source using PK Metric, but enough distortion to measure similarly to a Western Electric 300B tube product too...

Sony TA-ZH1ES: A DAC/Headphone Amp with a Sonic Signature?
Sony TA-ZH1ES: A DAC/Headphone Amp with a Sonic Signature? Stop. やめる. Halt. Arrêt. You probably shouldn’t read the rest of this post, it's triggering. There's a lot of speculation even though there are a good amount of measurements too. If you're looking for a transparent DAC/headphone...
