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iBasso DX200 Oreo 8.1 Purist ROM beta version released!

 in News

 

upload_2018-10-2_3-53-37.png

Sorry. Did I scare you? Shortly after the announcement, I found a way to repack Purist ROM I modified. Oreo has a lot of security features added making ROM customization becoming harder but not far from possibilities.

 

-Based on firmware version Oreo 8.1 Beta 0.01.008
-Play Store added (Not working yet. I recommend Yalp Store for now)
-Apollo – Fidelity Edition from https://forum.xda-developers.com/android/apps-games/apollo-music-player-fidelity-edition-t3038629 included
-Revamped MangoPlayer UI with improved user experience
-build.prop tweaks for better video and storage performance and improve battery life
-Audio engine optimized for only audio playback (EQ/Gaplass features work)

 

Download: iBasso DX200 Oreo 8.1 Beta Purist ROM | XMOS Firmware 1.2 Update

 

Installation Guide

First of all, this Oreo ROM comes with Verity enabled to protect system partition images. Even if you managed to flash modified system image and boot properly, those files won’t be updated and use older files from cache partition. To disable Verity, please follow the instructions below.

1. Go to Settings > System > About tablet and tap “Build number” for 7 times to enable “Developer options”
2. Tap back arrow and enter “Developer options” and enable “USB debugging”, press OK
3. Download Disable Verity package and run disable_verity.bat file (You can install driver from Official Oreo ROM package)

After DX200 boots up properly with Verity disabled, you can start flashing Purist ROM now with these steps below.

1. Turn off DX200
2. Connect DX200 with USB connection to computer while holding play button switch
3. Install Rockchip USB driver included in update tool
4. Flash Official Oreo ROM Beta firmware from iBasso with instructions provided in update tool
5. After successfully flashing official one, flash Purist ROM again

 

This firmware is still in beta stage so it’s not stable yet. If you have any issue with Oreo ROM beta, you can always go back to official 2.1.94 version and then flash Fidelizer Purist ROM thereafter for better sound quality and system performance. 🙂

iBasso DX200 8.1 Oreo beta ROM impressions and Purist ROM possibilities

 in News

EDIT: Well, I released Purist ROM for iBasso DX200 with Oreo update now. 🙂

 

Hi, everyone. Oreo beta ROM came out yesterday for iBasso DX200 and I spent all day and night testing and checking things out. So far sound quality seems to be promising though I’ll miss Purist ROM optimizations until preparations are ready for Oreo ROM.

Current Oreo ROM can support LDAC through developer options and force bluetooth detection option which is good. UI is more responsive in launcher but Mango is about the same. MangoOS seems to be better though. However, file access to storage is slower than 2.10.215 ROM.

I think I’ll port new files to 2.10.215 ROM to use for time being until they improve file access performance in next version. If you don’t change micro SD card and re-scan frequently, you may try using Oreo ROM for a while with bluetooth headphones.

As for ROM modding potentials, it doesn’t look good. I can repack and flash update.img safely but repacking system.img and vendor.img will freeze at logo screen. I tried many ROM cooking tools and bought few more that supports Oreo ROM but no luck yet.

Well, this isn’t the first time we have obstable as I reached out to iBasso and they released Factory image and flashing tool for me to build the world’s first DX200 custom ROM with Play Store and some optimizations to improve device performance so they may lower restrictions after it goes public.

For worst case scenario, I can still modify the ROM to some extent but it’ll have limitations with current situation. I’ll continue my research for Oreo ROM modification. I already informed iBasso about the situation and hope to hear back from them soon.

Added testimonial from Eric Pell

 in Feedback

Here’s a new feedback today. I’ve been so busy with server projects and stuff to update so I’ll add more feedback over time.

Hi Keetakawee,

I want to Tell you that Fidelizer 8 for me is the biggest improvdment in sound since i use fidelizer. Its wonderfull. Hope you will go further in the future ???. Do you use a Devialet Expert for yourself?

Best regards and a happy 2018! Eric

He sent me his impressions about Fidelizer 8 when it was first launched as below. Now it should sound even better. 🙂

Understanding how MQA re-constructing perfectly aligned waveform

 in Article

From my understanding based on technology MQA applies.

1. Hi-Res down-mixed to 24/44.1-48
2. With decoder flags for filter and DSP from AD to DA
3. Up-mixing to 88.2-96 through software layer or 176.4-192 with hardware layer too
4. Up-mixing will re-construct signal based on profile stored in AD and DA flags

The major advantage of MQA technology is you identify which AD used on recording and MQA DAC will construct 2-4X sample rate to match with DA part. It’s quite good technology to deliver more reliable analogue sound through streaming effortlessly.

There’s method to archive better sound with purist waveform but it will never be easier. MQA should work well for most non-purist audiophiles for time being since some purist audiophiles don’t want to get involved with DSP no matter what.

NimitraS Computer Audio Server review on StereoNET UK by Jay Garrett

 in Review

 

Fidelizer NimitraS Computer Audio Server

 

Finally, the first NimitraS Computer Audio Server review is published. It was reviewed together with Nikola Linear Power Supply for completed NimitraS review. I’d like to express my gratitude to our UK distributor Elite Audio and Mr. Jay Garrett for this review

In this review, NimitraS was tested with a few DACs including Aqua La Voce DAC and Chord Qutest. I’ll have an appointment with Chord distributor about testing Nikola 5V version for Chord Qutest this Monday too. It seems he’s really pleased with NimitraS as you can see below.

Fidelizer Nimitra: inearspace's Price of Place

Starting things off with a live version of ‘Big Love’ by Fleetwood Mac the instant realisation that there was greater detail and focus from the track when using the NimitraS when compared to my laptop plugged into the same DAC was nothing short of incredible.

Turning to a test track favourite and Nick Cave’s ‘Red Right Hand’ and again, the soundstage opened up more with the NimitraS. The performance through the Fidelizer server was just more visceral than through my laptop. Same track, same DAC, same NAS drive. But, apparently, it’s all just zeros and ones.

I have been impressed. I do love my PCs, and custom ones tend to trigger a reaction in me that is probably illegal in some parts of the world. That said, there is no mistaking the improved audio quality through this little music server.

On the date this review published, I received a message about sending NimitraS to StereoNET Australia for reviewing too. This will be my first time for regional product reviewing and I’m excited to see how it’ll turn out in Australia.

If you’re from United Kingdom and want to try NimitraS server, feel free to contact Elite Audio for auditioning and purchasing NimitraS Computer Audio Server with excellent services. 🙂