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News about Fidelizer products and services

Introducing Fidelizer Cables section featuring USB and Ethernet cables for streamers

 in News

 

Cables - Main

 

After completing Erawan flagship streamer product, the mission has become clear to me that Fidelizer won’t be able to deliver real sound experience without getting digital done right if most cables in market don’t follow industrial standards properly.

Digital isn’t just about coloration like analogue cables. Jitter is the most important aspect in time domain so designing digital cables that don’t follow industrial standards will cause unexpected issues related to jitter.

To address this issue and make sure Fidelizer streamers such as Erawan, Nimitra, and CoreStream will deliver real sound experience as envisioned, I decided to open Fidelizer cables section to distribute digital cables for these products as below.

 

CoreStream USB / CAT8 Cable

 

CoreStream - USB / CAT8 Cable

 

After successful launch of CoreStream streamer that can provide highend audio performance with Audirvana / JPLAY / Roon software for many customers worldwide, some people asked for suitable USB and ethernet cables for CoreStream too. So we designed cables with optimal sonic performance for CoreStream as below.

This is actually the first design as cables for Nimitra streamer before launching CoreStream. Since we found the most suitable design for Nimitra later, it’d be a shame to drop this cost effective design so we revised the design for CoreStream instead.

 

Conductors: 8 x 24AWG solid core pure copper
Finishing: Foil + Tinned copper with premium grade sleeving
Connector: Premium grade connectors
Standard length: 5ft (1.5m)

 

The MSRP price for CoreStream cable at standard length 5ft is US $169 with 30-day money back guarantee and one year product’s warranty. These cables are the best in its price point to use with Fidelizer CoreStream streamer.

 

Nimitra USB / CAT8.1 Cable

 

Nimitra - USB / CAT8.1 Cable

 

Nimitra streamer is our first and most accomplished product getting a lot of awards from professional media worldwide including Stereophile. We designed Nimitra cables with the similar principle as affordable yet can deliver performance as flagship quality level product.

We tested Nimitra cables with many flagship quality cables in our clients’ systems and make sure that Nimitra with these cables can deliver streaming experience that can scale wonderfully for our clients worldwide who use ultra highend systems too.

Conductors: 8 x 24AWG solid core pure copper
Finishing: 100% coverage Foil + Tinned copper with noise reduction high-end grade sleeving
Connector: High-end grade connectors
Standard length: 5ft (1.5m)
The MSRP price for Nimitra cable at standard length 5ft is US $499 with 30-day money back guarantee and one year product’s warranty. These cables are the best in its price point to use with Fidelizer Nimitra streamer.

 

Erawan USB / Fast Ethernet Cable

 

Erawan - USB / Fast Ethernet Cable

 

Erawan flagship streamer is our main reason why we decided to make cable products. At first, we intended to make only one cable design that can be used on both Nimitra and Erawan. However, there was one cost no objective design in our minds for almost 10 years too.

We considered it for a very long time and decided to believe in our gut feeling to build it. This has triple layer of finishing optimized to deliver the most transparent sound revealing every micro-detail. Ethernet cable is designed for 100mbps speed only for lowest noise floor.

Conductors: 4 x 22AWG solid core pure copper
Finishing: 100% coverage Foil + Tinned copper with teflon insulation and triple layer finishing (Carbon / FEP / PFA)
Connector: High-end grade connectors
Standard length: 5ft (1.5m)
The MSRP price for Erawan cable at standard length 5ft is US $1899 with 30-day money back guarantee and one year product’s warranty. These cables are the best with cost no objective design to use with Fidelizer Erawan flagship streamer.

 

Fidelizer USB / Ethernet cables follow industrial standards having matching impedance of cable and use professional connectors with years of research and testing to make sure they’re robust, secure, and deliver best experience and value.

You can order Fidelizer cable starting from $169 USD with 30-day money back guaranteed and free shipping until 30st April 2026. You can read more information about Fidelizer Cables in details before ordering and happy listening.

About Jay’s allegation

 in News

 

 

It all started from someone making a comment about his disappointment with a product he reviewed. Jay asked him why and others chipped in their comments.

Jay tried to suggested PEQ feature thinking it’ll resolve the issue. I read the comments and elaborated how quality beyond PEQ matters. Otherwise T8 wouldn’t exist.

However, Jay insisted on PEQ will resolve the matter and assume original commenter didn’t know how to use this feature leading to disappointment. I commented that as being entitlement.

I never criticized about Eversolo products myself and made my point clear how some old school audiophiles may not appreciate streamer products designed for modern audiophiles.

People can like different things. Some may like A or dislike B products. That’s preference and nothing is wrong with that. I also said I like the original Eversolo A6 model that uses OPA1642.

When he put clickbait $800 streaming DAC broke highend, some people will come to comment their disagreement. Some may become an audiophile with wisdom from cultivated decades.

The original comment has 3 other people who actually commented about Eversolo products. I only clarify how T8 will bring better transport quality and like the original A6 design with OPA1642.

I have been listening to music with Parametric Equalizer since Winamp era, still helped a few customers tweaking PEQ in Roon and others till this day.

He removed comments and blocked me making a false accusation. I don’t know if someone will believe my words but that’s what happened and I never lie, even to my customers to make sales.

Fidelizer Upgrade Program – 6,100th purchase offer

 in News

 

Fidelizer Pro

 

Today we’ve reached 6,100th milestone now in this month. As a reminder to inform customers that they receive refund for returning customer purchase, I’m running purchase offer again in this week. I also sent partial refund back for customer who placed an order on 23th August 2025.

 

Fidelizer Plus: US $39.95 —> $34.95 (Until 8th March 2026)
Fidelizer Pro: US $69.95 —> $59.95 (Until 8th March 2026)

 

This offer will last until 8th March 2026. Discount rate is the same as purchasing Fidelizer software again so new customer and returning customer will get the same price. You may order again anytime and receive partial-refund as discount later after this campaign is over.

I hope this will be good chance for you to consider applying Fidelizer Upgrade Program software. You can also click on “Fidelizer Upgrade Program” button and click “Order Fidelizer” button in Fidelizer free version software. 🙂

Introducing Lira, the flagship network station as successor of EtherStream2 and Nikola2

 in News

 

Lira - Side

 

On Christmas night in year 2024, I had a dinner with my audiophile friend who purchased EtherStream2 network switch and Nikola2 linear power supply to upgrade from previous highend network switch and use with his dCS Vivaldi One streaming CD player.

After dining, he proposed the idea of building a better version of network switch knowing what I’m capable of from listening to Erawan flagship streamer product in his system. I confessed to him that I considered it but it’d create a dilemma with EtherStream2 + Nikola2 combo.

 

Lira - Back

 

He understood my point and clarified the issues he had further. The switch is so small. It’s very hard to keep switch attached with isolation feet after swapping audiophile ethernet cables. Cables from Nikola2 to EtherStream2 + AirStream2 + main router are cluttering audio rack too.

At that moment, I realized that making linear power supply infrastructure and route access to network as a single box product that surpasses both EtherStream2 and Nikola2 is the solution we’re looking for. Customers can send EtherStream2 and Nikola2 to be upgraded as well.

 

Lira - Internal

 

With a clear vision in mind, I finalized Lira as a suitable companion of Erawan flagship streamer. Aside from thick aluminum chassis enclosure and footer to handle resonance and vibration control better, Lira has the improvements over EtherStream2 and Nikola2 as below:

 

Improvements from EtherStream2 network switch
-Bypass power switch and input socket completely improving purity of power distribution
-Optimized output for shortest path possible to supply power from output board to network switch circuit
-Upgrade input capacitor upgraded with high quality polymer hybrid design with much lower impedance
-Upgrade noise reduction capacitors with even lower ESR with improving tuning for lower impedance and current leakage
-Upgrade resistors around grounding and internal circuit components to further reduce noise in circuit

 

Improvements from Nikola2 linear power supply
-Add dedicated chassis ground connector to ground conditioner product
-Change output connector to gold plated XLR with very high voltage rating (same termination as HDPlex)
-Upgrade DC output cable with high quality pure copper wiring
-Upgrade diodes with Schottky design with years of listening tests with different models
-Upgrade internal wiring with high quality solid core pure copper wiring
-Upgrade output transformer with 100VA Toroidy audio grade transformer
-Upgrade stock fuse with improved dynamics and musicality

 

Lira - Front

 

After testing Lira in a few audio shows and with highend to ultra high-end level systems using $30-50k sources from CD and vinyl as reference, I’m confident that Lira will deliver worthwhile improvements that meets ultra high-end standards.

The product price will be $1899 USD with 30-day money back guaranteed and free shipping until 30st November 2025. You can read more about Lira network station product in details before ordering with discount up to $900 USD if you upgrade from EtherStream2 and Nikola2.

Fidelizer Nimitra Firmware 6.0 Updater is released with overhaul optimizations based on Erawan flagship streamer

 in News

 

Nimitra Firmware 6.0 Updater

 

After releasing firmware 5.0 in 2022, we’ve been improving Nimitra internally and apply newer changes and improvements over the years until it reaches maturity stage to make it official. Today is the day we can announce official firmware 6.0 update.

Version 6.0 will cover major improvements based on Erawan flagship streamer that can be applied into Nimitra product. Firmware 5.0 was biggest improvement but 6.0 is now bigger with overhaul optimizations and improvements as below.

 

Windows Server 2025 Sound Quality Optimizations

 

After being impressed with sound quality from Windows Server 2022 for the first time enough to put onto Nimitra firmware 5.0, Windows Server 2025 made further improvements and changes are tailored for Nimitra to bring streaming closer to real sound.

Erawan was launched in the same month as Windows Server 2025 being released officially so we have been working closely with 24H2 codebase since the first beta. We’ve been optimizing Erawan until last week before making local launch in November 2025.

It’s quite fortunate for Nimitra that changes from Windows Server 2025 can blend smoothly with NimitraOS optimizations making Nimitra Classic and Nimitra2 sounding a lot closer to Erawan at much more affordable price point.

 

Universal Core Isolation Policy and Playback Optimizations

 

Nimitra Firmware 6.0 Updater - Main

 

When firmware 5.0 was released, it was mainly for Roon optimizations at first and we put JRiver improvements during last minute before official launch. After Roon failing to meet our expectations, we started working on universal optimizations.

We work closely with developers who are our partners like Audirvana to bring the most satisfying experience to our clients with optimizations on Nimitra. The change of direction to universal approach will optimize all audio applications.

 

Core Isolation Policy:

Single core (Recommended for low latency audio playback)
Dual cores (Recommended for high buffering audio playback)
No isolation (Disabled)

Playback Optimizations:

Standard optimizations (Default recommendation)
Enhanced optimizations (Improve playback performance)
Max optimizations (Full real-time process optimizations)
Safe optimizations (Improve Roon’s reliability)
Extra-safe optimizations (Fail-safe optimizations)
No optimizations (Disabled)

 

Default configuration will use dual core isolation and standard optimizations now to maintain good synergy and reliability with most devices. Customers can also request for optimal configuration for their system to get the best sound quality possible.

 

Improved reliability with Roon/JRiver Optimizations

 

FidelizerRemote

 

After releasing firmware 5.0, we noticed a few unusual issues with Roon and JRiver software used in Nimitra and added workaround to resolve the following cases as below.

  1. Roon keeps eating up space after applying a few updates so all temporary files will be cleaned up before loading Roon on startup
  2. JRiver has occasional issues with USB audio not being responsive due to having pause on audio playback so it will stop after a long pause

Firmware 6.0 will address these issues and keep Nimitra stable with unusual cases but we do care enough to bring the best music experience.

 

Improved internal system and application optimizations

 

There’s a lot of internal system and application optimizations in firmware 6.0 to further improve audio performance in this release. Even Airplay now will bring outstanding audio performance and some application files are updated to more recent version.

More unused features in audio platform and operating system are disabled to further reduce interference in system and bring inner fidelity of streaming to the next level along with improved internal system optimizations.

 

Improved quality of life improvements based on ErawanOS

 

After releasing Erawan, there’re a few changes being requested by clients and store vendors to bring to Nimitra too. For example, changing track with JPLAY in Erawan will have smooth fade out before playing a new track. This is implemented in firmware 6.0 too.

Some other unique optimizations from Erawan are also implemented on Nimitra such as disabling core parking and USB’s power saving features so Nimitra will improved sound quality and user experience being more similar to Erawan for what Nimitra can achieve.

 

Changelog

-Added Audirvana/Spotify/Tidal/Qobuz applications support into NimitraOS optimization platform
-Added I/O priority optimization on Audirvana/CoreAudio engine/Roon/Windows Audio
-Added JRiver’s memory playback mode decoding file into memory before playback
-Added temporary files cleaning process to maintain product’s reliability over time
-Added Windows Server 2025 sound quality optimization into NimitraOS
-Changed JRiver’s latency optimizations to Core latency optimizations supporting FidelizerRemote / uPNP / OpenHome / LMS
-Disabled Cloud content delivery that may download over time and cause “Get even more out of Windows” screen
-Disabled CPU core parking and USB’s power saving features
-Disabled un-used features in core streaming platform to improve performance (can re-enable requested feature via remote support)
-Extended core isolation and playback optimizations to all supported features including Audirvana and HQPlayer NAA endpoint not just Roon
-Improved .NET runtime optimizations for better performance and reliability
-Improved compatibility with JPLAY iOS app
-Improved disabling Windows Update in more cases (Windows Update can affect sonic performance and remove optimizations)
-Improved internal sound quality optimizations for NimitraOS 2.0 platform
-Improved optimizations on WDM audio performance (DirectSound, Airplay, audio in browser, etc.)
-Improved reliability of automate library files scanning
-Improved reliability of Roon updates
-Improved reliability of uPNP / OpenHome / LMS features
-Improved reliability with JPLAY iOS app in some cases
-Improved Roon Isolation Policy optimizations for better sound quality and stability
-Improved Roon performance by cleaning temp/cache before running RoonServer
-Improved startup optimizations for better sound quality and reliability
-Optimized Airplay streaming quality to improve audio performance
-Optimized core streaming platform’s audio output buffering to improve compatibility with JPLAY streaming app
-Optimized default configuration to improve performance and reliability with legacy USB DACs and USB storage playback
-Optimized remote support reliability to reduce its effect to audio processes without affecting performance
-Updated AirPlay platform binaries to stable version
-Updated core streaming platform to be recognized in streaming app as Nimitra endpoint
-Updated HQPlayer NAA binaries to version 5.1.5
-Updated OpenHome libraries to latest stable version

 

If you’re using Nimitra Classic, I’d like to inform that Nimitra Classic will be discontinued in future after successful launch of CoreStream streamer. So, you can upgrade your Nimitra Classic to Nimitra2 at $1,500 USD only.

Nimitra runs on specially tuned NimitraOS platform with special version of Fidelizer. All these optimizations are specially tuned for Nimitra’s hardware and software configuration, separated from Fidelizer software optimizations.

Nimitra Classic / Nimitra / NimitraS / Nimitra2 customers can send request for firmware update and I’ll update Nimitra firmware through remote or request download link for applying update manually.