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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. 🙂

Fiio X7ii Purist ROM version 1.0.7 JP update with partition mapping update released

 in News

 

Fidelizer Mod

 

Last week I received report from one customer who had firmware issues with Fiio X7ii 1.0.7 JP release. It worked fine for others but for some reason it didn’t work well for him so I asked him to dump stock 1.0.7 JP ROM and sent me.

After investigation, I found 1.0.7 JP has different partition mapping so I updated 1.0.7 JP release with new partition mapping from his dumped ROM. Please flash stock 1.0.7 JP first before flashing Purist ROM.

 

-Based on firmware version 1.0.7 JP
-Apollo – Fidelity Edition from https://forum.xda-developers.com/android/apps-games/apollo-music-player-fidelity-edition-t3038629 included
-build.prop tweaks for better video and storage performance and improve battery life
-bundled audio effects removed but keep main engine (Poweramp works now)

Download: Fiio X7ii Purist ROM (JP version)

 

Installation Guide

1. Download X7ii Firmware Upgrade Tool
2. Turn off Fiio X7ii
3. Connect X7ii with USB connection to computer while holding previous track button
4. Install RK USB driver included in Firmware Upgrade Tool and replace update.img image with Fidelizer Purist ROM version
5. Open X7II(Chinese text).exe and press the green button in middle right flash the ROM

For Mac / Linux users, please check this guide for flashing Fidelizer Purist ROM on Mac / Linux instructions.

 

There’s a lot of improvements for Advanced ROM and I also added Enhanced ROM into collection too. Please read Portable Products for more details including Fidelizer Mod project with 3 modification levels. Happy listening. 🙂