DX340 iBasso developed Discret DAC, Easily replaceable batteries, Amp Modules! ***New firmware on 1st page. v1.04 local update. ***

Apr 2, 2025 at 9:50 PM Post #5,236 of 6,409
That would be cool 👍. Not everyone is comfortable to root.
I will start working on it. You can use Stouthart tweaks if you do not want to root ever. His do improve SQ. I just provide a root solution for those that want root with SQ improvements. His will own non-root DAPs and mine are for root DAPs.

I prefer root because it gives me more control over my DAP. Root has gotten a bad name because of cell phone companies forbid it and I can understand why if some malware get on rooted phone and spread on their cell networks it could be bad. We are dealing with a dap and if only on wifi and with audio apps risk is almost nothing. Worst case some malware spreads to other devices in the local wifi network but your pc is much more likely to infect others because we are surfing the net etc. You have admin rights to your pc or Mac so root is same thing on phone/dap. With magisk you have to give app root access but that could be bypassed by hacker or malicious code. I run my Daps in airplane mode as I don't stream. Risk is zero for me. Every app on my Daps is side loaded. No play store etc. Use my pc that has malware/AV protection to downloaded and then transfer to Dap using my pc.
 
Apr 2, 2025 at 9:56 PM Post #5,237 of 6,409
Paul says to just listen at a normal volume with regular resolution music to burn in DAP.
Thats exactly the manual says always read through manual….
Right, you burn in a normal listening level. Using a max on everything, especially volume will heat up the amp and you could do some damage with running it at max for a long period of time.
Let me rephrase what I said. I didn't mean max volume along with max dac and max gain. That would be ludicrous. I ment dac on high and gain on high. I ran volume around 30. It does not over heat with the gain on high and the dac on high at that level. Thats why I put the disclaimer at the end of my post that said read the manual.😉
 
Apr 2, 2025 at 10:36 PM Post #5,238 of 6,409
Don't stress over burn in. The DX340 right out of the box is the best if not best one of the best available period! You are not going to hear night and day differences. It's very high quality built so not a bunch of cheap stuff. Ibasso could have easily charged $3k for it and get it.

I would use normal listening volume and just enjoy the music with gain settings that sound best with your head gear and preferences. Part of the experience of buying brand new is seeing how the sound evolves at least to me. My new unit vs one I bought used sound the same so that tells me ibasso has good manufacturing process etc. They were from different manufacturering batches too.
 
Apr 3, 2025 at 2:27 AM Post #5,239 of 6,409
I will start working on it. You can use Stouthart tweaks if you do not want to root ever. His do improve SQ. I just provide a root solution for those that want root with SQ improvements. His will own non-root DAPs and mine are for root DAPs.

I prefer root because it gives me more control over my DAP. Root has gotten a bad name because of cell phone companies forbid it and I can understand why if some malware get on rooted phone and spread on their cell networks it could be bad. We are dealing with a dap and if only on wifi and with audio apps risk is almost nothing. Worst case some malware spreads to other devices in the local wifi network but your pc is much more likely to infect others because we are surfing the net etc. You have admin rights to your pc or Mac so root is same thing on phone/dap. With magisk you have to give app root access but that could be bypassed by hacker or malicious code. I run my Daps in airplane mode as I don't stream. Risk is zero for me. Every app on my Daps is side loaded. No play store etc. Use my pc that has malware/AV protection to downloaded and then transfer to Dap using my pc.
Do be aware that non-official app stores are still technically more vulnerable to hackers/bad actors compared to official google playstores as these apps are often uploaded by unofficial 3rd parties instead of the actual official app developers and this could be a method to inject hidden bad/vunerable code for later exploitation. Also I think zero risk don’t exist, everything in life has risk, even if it’s 0.00000000000001% chance.

Malware/AV protection on PC isn’t 100% protection, and often than not, their virus protection only covers PC related executables and does not include scanning for virus/malware code for android apps. A security compromised dap might seem inconsequential given that it’s only inconsequential purpose is music playback, but If it’s on a network, it could be the gateway device for hackers to infiltrate other devices on your network.
 
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Apr 3, 2025 at 3:50 AM Post #5,240 of 6,409
Just a small question folks - i will be using DX340s SE line out to my integrated tube amplifier. As i have read here, i am a bit confused - does the DX340s line out fully bypass the device internal amp or not? Or will i have some sort of double amplification? Why does the amp gain setting affect the overall loudness even when line out is in use?
 
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Apr 3, 2025 at 7:08 AM Post #5,241 of 6,409
There is actually not that much logging going on in the background (has nothing to do with debloating). Kernel ring buffer (dmesg) is always enabled, as is the logging daemon (logd/logcat) for system messages (similar to journalctl on Linux). Both run in the background and only write to non-persistent storage (memory). Then there is the trace daemon (traced), which is used for scheduler debugging. This service is not required on a production device and can/should be disabled (already done via Advanced Tweaking).

And finally, cnss_diag: this diagnostic tool is known to drain the battery of many Android phones (especially Xiaomi). Not only does it consume a lot of CPU time, but it also writes to persistent log files on disk. I have disabled this service myself for a week now, without any issues. By the way, this service does not come from iBasso; it is part of the Qualcomm Wi-Fi drivers.

The challenge for me was not so much to figure out how to stop cnss_diag, but to provide a fix via Advanced Tweaking that is reversible and doesn't require permanent changes to config and/or vendor init files. Also, debugging the Android boot/init process isn't easy. And - unlike many other services - cnss_diag doesn't provide a setting/property to disable it. But I just found a safe solution, which stops cnss_diag immediately after it starts. The log files are still created, but they stay 0 bytes in size. This (test) version has already been published on GitHub (v5.5b). As a positive side effect: there seems to be less Wi-Fi related noise now when using the AMP14 card :)

For those willing to re-run the Advanced Tweaking script, please let me know if you experience any issues. Thanks!
Applied 5b with no issues and have been running it since yesterday morning. No issues so far listening via uapp, tidal, or mango player. Thank you for sharing all your hard work
 
Apr 3, 2025 at 8:58 AM Post #5,242 of 6,409
I run my Daps in airplane mode as I don't stream. Risk is zero for me.
That's understandable :thumbsup: But some people like me will need streaming, PlayStore...
 
Apr 3, 2025 at 10:49 AM Post #5,243 of 6,409
Don't stress over burn in. The DX340 right out of the box is the best if not best one of the best available period! You are not going to hear night and day differences. It's very high quality built so not a bunch of cheap stuff. Ibasso could have easily charged $3k for it and get it.

I would use normal listening volume and just enjoy the music with gain settings that sound best with your head gear and preferences. Part of the experience of buying brand new is seeing how the sound evolves at least to me. My new unit vs one I bought used sound the same so that tells me ibasso has good manufacturing process etc. They were from different manufacturering batches too.
Fully agree.
 
Apr 3, 2025 at 11:36 AM Post #5,244 of 6,409
Just a small question folks - i will be using DX340s SE line out to my integrated tube amplifier. As i have read here, i am a bit confused - does the DX340s line out fully bypass the device internal amp or not? Or will i have some sort of double amplification? Why does the amp gain setting affect the overall loudness even when line out is in use?
Welcome to the 340 Thread!

That’s a question for the iBasso engineers. There have been discussions regarding your question on this thread such as what 340 amp cards have true LO and which ones don’t or what’s the overall sound quality of a double amped audio system…in the end, only you will be able to rate/judge the sound quality of your integrated tube amp paired up with your 340.

I think a more important question is will a max SE LO voltage of 1 Vrms (340 technical specs) be enough input to adequately drive your integrated tube amp. Some 340 owners have claimed that even in LO mode on the 340, the super gain option (with 12V DC plugged in) will boost the output gain of the 340. You should try that and see if you also experience more voltage out of the SE output. More common SE LO voltages are in the 2-2.5 V range. Maybe your tube amp is a SE only design, so you are limited to SE terminations, but the balanced output of the 340 has the overall higher fidelity in most every category/measurement over SE measurements. I don’t own a SE only designed piece of audio gear. Most times these days, out of curiosity, I’ll connect one of my IEM’s or full cans to a 3.5 terminal, and I cringe 🤢😂, and immediately go back to my 4.4 or XLR output. The differences for me between SE and Bal is like driving with 2 flat tires on your car. I’m ruined…once you go to fully balanced audio system, there’s no path that leads back to a SE system.
 
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Apr 3, 2025 at 12:51 PM Post #5,245 of 6,409
That's understandable :thumbsup: But some people like me will need streaming, PlayStore...
I realize that many do stream and nothing wrong with it. I am not going to tell people how to use their DAPs. I do have some news that Neutron will support streaming in the future. It is on the list of enhancements the Dev is working on. I run apps for root, Neutron and Wavelet and that is it. Neutron is downloaded from the DEV and Wavelet I found on one of the code repositories on my primary 340. Air Plane mode on all the time. Other 340 I use for testing and development so that one has some more apps on it and I do have to test streaming so needed Aurora Store to download app(s). Having 2 340's turned out to be one of the best decisions I have made in this hobby. @Sonywalkmanuser is correct there is no such thing as no risk. I take every step possible to lessen that risk.

What I have discovered from more testing is cnss_diag runs at boot up even if WIFI is turned off. For non-root Stouthart's solution is best one. I will now play with conf file options to see if I can get all logging stopped for non-root people who do not use Stouthart's tweaks. I do NOT like not needed storage IO.

For those rooted I have modified my modules and stop cnss_diag but it will run until the line of code stops it which is a very short time and no data makes it to the log files. You will need to download the latest modules and remove both from Magisk and install again. To install both you will need to disable the active one BEFORE installing the next one, rebooting between adding the modules. Then you can disable the battery save one and activate the perf one and reboot. As an added plus I set DNS to use Ad Aware which stops the ads which some can contain malware etc in my modules.

Any non-root user can run "adb root" then "adb remount" and then "adb shell" while DAP is connected to PC using SDKtools.

Run:
"cd /data/vendor/wifi/wlan_logs" then "ls -l"
You can remove log files "rm *.txt" and reboot IF data is still being logged you will see those files again with size greater than 0.
You can run "ps -e | grep cnss.diag" to see if that process is still running.
"top" will give you the processes that are using most CPU and if cnss_diag is still running it will be there.
 
Apr 4, 2025 at 12:35 AM Post #5,247 of 6,409
Apr 4, 2025 at 4:26 AM Post #5,249 of 6,409
For the first proper time, i’m going to listen with super gain, initially pairing with my Sony MDR-Z1R’s, listening to the silky voice, that is Boz Scaggs ! ( I actually have a bit of a love / hate relationship, with the listening of my MDR-Z1R’s, so hoping that will change for the better ?? )

Can I just confirm again, that’s ok to keep on charge, while doing so ? I have battery saver on, so at a constant 80% charge, of course.

I wish there was an accumulated “audio time” feature, just so as I know how many hours played…..

EDIT : Panic !!! Enjoying, continuing to Boz….but the player won’t light up now, when I press the wheel, short or long press & Boz, is still currently playing, think on the last track now. I’ve taken the charging cable out. I hope I haven’t damaged anything ! ?? Will see what happens, just now, when album has just finished playing….i unplugged DC -IN & held the power button down & it seemed like an eternity, before thankfully it powered back on.

Should I be using it in this way, as described above ? Why would it go into some kind of shut down mode ?? Is it because i have it on constant charge ??
 
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Apr 4, 2025 at 7:58 AM Post #5,250 of 6,409
Well dang. Burn in made a large difference on the Amp16. I'm really enjoying it now. Dynamics are back, and clarity is up a number of notches. Sweet sounding and beautiful extended treble.

Also, using 12v input has a huge positive impact on Amp 16. IMO more than on amp 15. The tubes love more voltage. The low end fills out, has more authority and resolution goes up a notch. Super addicting sound with my headphones. Yum.
 

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