Which is better for sound quality?

http://www.ti.com/product/OPA2134 OR http://www.ti.com/product/OPA1642, the OPA1642 can be used fully diferential(balanced) to a studio monitor or amp, just like the OPA2134, but which has a better sound quality? the OPA1642 is in a Roland Mobile UA USB interface(https://www.roland.com/global/products/mobile_ua/) with the DAC AKM AK4414EQ, and the OPA2134 in the Emotiva DAC pre-amp XDA1(https://darko.audio/2011/08/emotiva-xda-1-dac/) with the DAC Analog devices AD1955.

joser961606-18-2019 2:45am

georgehifi Details Discussions Posts This discussion 10,312 posts 06-18-2019 at 02:57am Copy Comment URL Report Comment Edit Delete joser9616 If you can afford it go 2 x OPA627’s on these adaptors, but make sure you get the OPA627’s from authorized Texas dealers, or 100% you will get fakes, and they are expensive. https://www.cimarrontechnology.com/browndog-020302-single-to-dual-op-amp-adapter If you can’t afford the 627’s get the OPA2134’s 80% of the 627’s with a strong but just a touch more rounded bass Cheers George
joser9616 OP Details Discussions Posts This discussion Message User 29 posts 06-18-2019 at 03:05am Copy Comment URL Report Comment Edit Delete Ok, but which one do you prefer of those two? the OPA1642 or OPA2134 and why? thanks :-)
joser9616 OP Details Discussions Posts This discussion Message User 29 posts 06-18-2019 at 03:09am Copy Comment URL Report Comment Edit Delete Excuse me, it's not the OPA1642, it's the TPA6120A2 vs OPA2134, which one is better for audio, which has better quality, thanks.