iBasso DX300 Qualcomm Snapdragon 660 Octa-core 6GB RAM ******NEW Firmware 2.00 Android 11******
Feb 20, 2021 at 11:03 AM Post #4,233 of 14,591
If possible, please, can you share some photos
Thanks !
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My player is Midnight Blue
 
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Feb 20, 2021 at 11:51 AM Post #4,235 of 14,591
Hello everybody.
I have noticed yesterday while I am disconecting a 4.4mm cable from the dx300 that something inside are moving.

Then, I shake up a little bit the dap with my hands and I could feel and hear a something moving inside. The amp is solid in its site, then maybe is the battery is detached. Someone else experiment the same issue in dx300? Maybe is normal or what?
 
Feb 20, 2021 at 11:54 AM Post #4,236 of 14,591
Thanks again. I also ordered this one
I’m actually enjoying the TPU case’s ability to bring out the natural beauty of this player. I feel the stock case kind of mutes it, for many reasons.
 
Feb 20, 2021 at 11:56 AM Post #4,239 of 14,591
Hello everybody.
I have noticed yesterday while I am disconecting a 4.4mm cable from the dx300 that something inside are moving.

Then, I shake up a little bit the dap with my hands and I could feel and hear a something moving inside. The amp is solid in its site, then maybe is the battery is detached. Someone else experiment the same issue in dx300? Maybe is normal or what?
No, that isn’t normal. Nothing should be moving inside. I advise to contact your dealer and tell them about the issues
 
Feb 20, 2021 at 2:50 PM Post #4,244 of 14,591
With the LNY break finishing up, I want to bring back to the attention of @Paul - iBasso some of my earlier Qs and some new ones

LO/PO
  1. There remains some confusion surrounding the LO/PO, gain settings and volume control.
  • LO is supposed to be real line out bypassing amp section, but Gain setting influences LO level. Please explain the signal chain.
  • Where is the digital volume in the audio chain?
  • Since gain setting influences LO level, do you have Max voltage levels for the different outputs 3.5/4.4 for diff gain settings. This is important to know when hooking up to external amps.

Different Apps audio quality
  1. With regards to using different 3rd part apps that claim ”bit perfect” playback, some very minor subjective differences have been raised by forum goers. For example differences have been ”heard” between Mango app, Uapp and Fiio music app. The reason behind these differences confuses me, as bit perfect audio data arriving at the final dac stages should all sound the same, no? Please educate us.
  2. Without giving too much company secrets away, can you help to understand what factors / mechanisms / signal processing (up/down sampling, requantization 16/24 to 32/32 float) actually are used by media player apps to ”develop the signal flow” from file to DAc input.
  3. Finally, is there any difference in how the dx300 FPGA processing features are used in signal preparation before the final DAC stages when 3rd party non-iBasso apps are used as audio player app as opposed to the Mango OS app.
I'm a big fan of your devices and device design philosophy. This level of clear transparent information provision can only be beneficial to you and the brand.
 
Feb 20, 2021 at 2:56 PM Post #4,245 of 14,591
My very happy sweetspot(s) nowadays are Android OS, Fiio app, Gain M, filter 3 (or 2 if too hash highs/transients in the music).
Not quite the surgical scalpel that is the dx228. But with these settings the dx300 sounds very very good indeed.
 

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