Good one !!!:beerchug::beerchug::beerchug: That being said… if one is willing to procure a second battery to replace the original, then one should not worry about all of these questions: just replace the battery when it’s dead [issue solved] :ksc75smile:

I don’t think it’s possible… Darwin is the code name for HiBy’s proprietary R2R architecture. The R4 uses traditional DAC chips instead: the (ESS) ES9018C2M chips instead of (R2R) discrete components. Two fundamentally different architectures.

In addition to @Joe Bloggs questions, could you explain what you mean by “Apple Lossless tunes from my collection of burned CD’s”: were those tracks already in Apple Lossless format (ALAC) on your burned CDs? …or did you get Apple Lossless format tracks through Apple Music match feature, but...

I just received my R4 and did some tests with the 'Device Info HW' app listed in a post above. I played an album through HiBy Music, with no PEQ, MSEB, or Plugin active. I then did the same thing with a system-wide PEQ filter (low-shelf), MSEB active (overall temp. slightly darker), and DRX10K...

I’m sure It’s not going to help, but the backplate falling off is most likely a consequence of a bad battery: the battery bulged, maybe not that much, but enough to push the backplate out. It’s actually a pretty good & safe design, you know for sure that something is wrong with the battery by...

See here: https://www.head-fi.org/threads/the-new-hiby-r3-ii-is-here-4-4mm-jack-improved-sound-and-bluetooth.872288/post-17985829

Off-topic, but it’s available at AE (that’s where I got mine): https://a.aliexpress.com/_mOIDS9Y They also have its new little brother: https://a.aliexpress.com/_mN1D8cO

Besides your (Android) phone, what USB device have you successfully connected to your car USB? Have you been able to connect another non-Android player? What about a large thumbdrive with all you tracks? It is very possible that your car only support Android devices (or Apple CarPlay) and, in...

Digital to analog music transfer through USB………. Are you sure? AFAIK the R2 or R3 don’t transfer analog music through USB.

What does your car “expect” to see on the USB port? A USB mass storage? A digital source?

I’ll express my opinion…. Now, I know you. For once, just do what you say you’re doing: don’t reply!

Just re-read this comment from Hiby about the M300 src (Android 13): https://www.head-fi.org/threads/hiby-digital-m300-android-digital-audio-player-the-gen-z-music-player-discussion-thread.970428/page-2#post-17816663 They mention a bug limiting the bandwidth to 24kHz unless touch panel feedback...

There may have been some problems with src implementation on some Android phones. See Hiby’s comments about the M300 here: https://www.head-fi.org/threads/hiby-digital-m300-android-digital-audio-player-the-gen-z-music-player-discussion-thread.970428/page-2#post-17816663 Note that the M300 is...

Head-Fi has a mechanism for the granting of medals... Could something similar be used for users to report a potential troll or sealion? No ban or posting restriction, but something like a low-bar: “you’ve been tagged as potential troll or sealion… the community is watching you…” I think that...

I was mostly interested into the earpads as a possible inexpensive aftermarket replacement. The headband and earpads on my 5909 are still in great condition, so I haven't had to replace anything.