Don't upgrade. Android 10 breaks bitperfect DSD playback.

Yes!! Ztella is much better

The v30 can make phone calls and take pictures

How do you know what output rate you are getting?

Do you have a case on it? Sometimes the thickness of a case can change the plug depth.

There is only one Sabre DAC. That Sabre DAC has multiple pipelines. To save battery, fewer pipelines are engaged when pcm audio files under 48khz 24 bit are played. The gain stage has nothing to do with piplines engaged. If you turn off the Sabre DAC or don't use the headphone jack, the...

...readers digest condensed version... The V30 has 3 amp levels, normal, aux and hi. Normally the V30 chooses which one to use for you based upon the detected impedance of the headphones that are plugged in. The he4xx triggers normal mode but needs more power than the v30 supplies based upon...

Really? I have 464GB in my V30. The oreo update with the AI camera is pretty cool too. My V30 can natively do dsd as well as 384khz pcm. Not something that the DFR can do.

Yes, they work well. No need to change the gain stage in the V30. It works well in normal mode.

You are not doing a fair comparison. The Sabre DAC in the V30 really shines using DSD and uncompressed PCM. You tested neither.

The latest version of UAPP will play DSD .iso files correctly!

Just for your own education... the Qualcomm DAC DOES have the ability to decode DSD, but no OEM makes use of it.

The quads work very well with the V30 in normal mode. No need for additional gain.

Do your headphones have removable cables? Are the cables plugged all of the way into the earcups first before you plug the 3.5mm plug in to the phone?

Neutron works mostly correctly. Still doesn't quite work right with DSD256 nor MQA