Some models implemented a short dongle with the microphone, and a female 3.5mm jack to plug a separate earphone into. These were usually all in one, and proprietory. Only the older model (much older) DAPs had combined earphone remote controls. The Sony DAP (and most others) do not have a microphone. The normal 4 contact TRRS 3.5mm found on phones, uses TRS for audio, and uses the 4th contact for the microphone. The Sony automatically detects the TRRS jack and switches to separated ground.

This is not true balanced, but sounds better than just TRS. This provides a separate ground for each channel.

The Sony DAPs, ZX, WM series, all have this TRRS capability on the 3.5mm. Each channel has a dedicated Grd ( R+/R- and L+/L-) instead of the Common Grd in the normal 3 wire TRS configuration (R+/L+/R&L GRD) HiFiMan(and some other companies) supports the same TRRS separated Grd output. This can be used for a separated ground output. Go to Sony Music Center app: enable LDAC high perf (maybe you need to connect bluetooth here to see the option)Ĭlick to expand.The 3.5mm audio jack has 4 wires in a TRRS layout. Go to Sony Headphone app: enable LDAC high perfĤ. Go to settings > connection prefs > bluetooth > wireless playback quality > LDAC high perfģ. It would be good if someone can try and compare also:Ģ. Now this might be an Android 9 bug - I've been reading that many devices suffer from locked LDAC bitrate, so maybe if you're reading this Sony, time to upgrade to Android 10/11 and give us an easier way to push max LDAC quality on your audiophile DAP anyway, i'm checking now it seems like the sound has lost that slight harshness and is a bit wider, with gained focus and micro details However I read online that apparently there is LDAC performance option in Sony's Music Center app (in addition to the Sony headphones app - bit confusing) and enabling that option to high performance apparently forces the high bitrate at all times (Sony using Android 9 gray area undocumented APIs to force it apparently). It seems there is some funny business with ZX507 LDAC - it keeps being stuck on adaptive no matter where I put it to max (Sony's app, bluetooth settings etc), which might explain why I hear bit of harshness and smaller soundstage compared to the M11 Plus.

Crossfade music center sony pc