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Introducing Aura, medical power supply for audiophiles

 in News

 

Aura - Medical grade power supply for audiophiles (Front)

 

After launching StreamHub streaming router, we’ve been developing suitable power supply upgrade for StreamHub with the goal to offer completed network improvement solutions under $500 USD. Today, our dream has come true with Aura medical grade power supply.

You probably wonder why Aura is not linear power supply. It’s because good linear power supply designs have these requirements:

 

  1. Reliable transformer – We need transformer that meets our standards and good transformer that won’t break after years doesn’t come cheap
  2. All rounder regulator and design – Some affordable designs may work on limited current or voltage range. Good designs to cover all cost more
  3. Quality multiple diodes – Some products use one diode, and it’s not really linear. Nikola designs use 4 quality diodes to keep current linear
  4. Optimal capacitors – Some capacitors cost several times more, but they also bring sound design improvement as intended

 

To check all these boxes with good build quality makes it very challenging for us to build even more affordable than Nikola Classic. However, we can take advantage of massive volume in switching power supply demand and medical grade quality to improve price/performance to the next level.

From our research and development with various manufacturers, we found the lowest possible ripple with low leakage current and suitable parts quality for audiophiles. We tested a few prototypes and finalized the design from both objective and subjective data.

 

Aura - Medical grade power supply for audiophiles (Back)

 

After testing finished products with audiophile friends and vendors, they were very impressed not just sound quality but also build quality of Aura. With StreamHub and Aura, completed network improvement is now possible under $500 USD with these features:

 

  1. Medical grade power supply – Very clean and transparent upgrade from bundled switching adapter with medical grade standards
  2. Nikola Classic’s level of build quality – From chassis, internal wiring, connectors and soldering quality, Aura can deliver with Nikola’s standards
  3. Mean Well’s reputation – Many audiophiles worldwide trust Mean Well as the most reliable switching power supply
  4. 2 outputs with high current – You can power up to two devices with 5A current which is more than enough for most applications
  5. 18 gauge DC cable – We use good quality 18 gauge DC cable which is the same gauge specs used in Nikola and sound wonderful

 

Aura can deliver performance closer to Nikola Classic at fraction of price that can work well in high-end audio systems. At the moment there’re 12V version and 5V version with 5.5mm x 2.5mm DC cables. For custom inquiry, please contact us for custom order.

The product price will be $219 USD with 30-day money back guaranteed and free shipping until 31st March 2025. You can read more about Aura medical grade power supply product in details before ordering and happy listening.

Nimitra2 Computer Audio Server review on Positive Feedback by Marshall Nack

 in Review

 

Nimitra2

 

Finally, the first Nimitra2 Computer Audio Server review is published. It was reviewed together with Nikola2 Linear Power Supply and EtherStream Network Switch after reviewing previous products. This review feels like the main dish has finally arrived after serving appetizers.

I was pleased to hear that Mr. Marshall Nack decided to review Nimitra2 server after reviewing EtherStream. It’s an honor for Nimitra2 to be the first streamer being reviewed by seasoned audio reviewer in highend audio system.

Positive Feedback

Believe me, I didn’t hear anything like this when the Mac was in-stream. I was always aware of deficits in tone, timbre, texture, and dynamics. To put things in perspective, if we were to use my much more expensive CH Precision transport as the reference, I’d say the Mac with Fidelizer ancillaries reproduced about 60% of what’s to be had, forcing me to assign it to the low-end class of gear. The Fidelizer Optimized Solution with Nimitra2 server filled out the big picture to raise the percentage to around 85%, and streaming vaulted into issue-free mid-fi. Now I could sit back and be comfortably entertained as Cyrus Chestnut tinkled the ivories.

It’s very hard to pick excerpt from this review when there’re so many good good aspects about Nimitra2 product. Please read his full review and see how he feels about Nimitra2 as a genuine highend audiophile and happy listening. 🙂

Nikola2 Linear Power Supply review on Audio Bacon by Jay Luong

 in Review

 

Nikola2 - Linear Power Supply

 

The first review of Nikola2 Linear Power Supply by Mr. Jay Luong was published in Audio Bacon for a long while. I’ve been very busy and kept forgetting to publish this review but it’s finally up now with very positive results.

I’m glad to see that Mr. Jay appreciates how Nikola2 can bring real sound performance that he can hear from real life instruments. It’s Nikola2 design philosophy to deliver world class tone and timbre as mentioned in his review.

Also, I’m very honored to know that he regards Nikola2 to be the power supply equivalent of my reference USB cable and decided to keep Nikola2 as he mentioned in his review. That’s the best moment for every manufacturer.

Positive Feedback

As far as power supplies still being sold, the Fidelizer Nikola2 power supply has the best tonality and timbre in the entire lineup. It has a fantastic amount of tonal variance, soul, and essence. It’s incredibly tactile, balanced in fullness, and articulates with just enough precision. Because of that, you’re able to hear subtle timbral and cues and resonances that are usually masked by other power supplies. This is consonant with what I hear in real life.

Thank you again for this wonderful review of Nikola2 product. You can read his full review and see how Nikola2 performs compared to other linear power supplies to understand how linear power supply can improve sound quality better.

Introducing Nimitra2 / Nikola2 as second generation of computer audio server and linear power supply

 in News

 

Nimitra2

 

Today is the big day for Fidelizer. After years of preparations and refining products for second generation, Nimitra2 and Nikola2 are finally ready for production which are projects I’ve been working for 2 years already.

There’s so much going on behind the scene since last year. As I also have clients ordering custom $5-7k server project since the first Nimitra. I always thought it’d be great if we can build  a product having performance that resembles custom highend server for half price.

With Classic series, it helped me realizing my dream to make highend audio performance affordable at $995. There’s also very good cost effective Nikola Classic at $395. This will keep Nimitra affordable and I can focus on taking second generation to next level.

I planned to launch them last year but could not make it to production stage due to covid situation which affect many companies worldwide causing long delay. I’ve been selling Nikola Signature with Nikola2 circuit board for over a year now, waiting for Nimitra2’s completion.

Now that I can finalize Nimitra2 design and production line, it’s time to embark a new journey. Nimitra2 will pair up nicely with modern DACs in market with custom made chassis, optimized as a streamer to deliver performance based on CD transport with Esoteric’s drive.

 

Nimitra2’s Features (As upgrade from Signature):

-Custom aluminum chassis design for better resonance/vibration control and heat dissipation
-Motherboard and chassis has vibration absorber/isolator material reducing vibration to motherboard
-MOSFET in motherboard’s power supply circuit is upgraded with high quality one from Japan
-All clock modules in motherboard are now upgraded improving sound quality on USB/Ethernet/HDMI
-Capacitors in motherboard are tuned with better resolution and details extraction

With all new improvements focusing on improving purity of signal and reduce interference, I can hear music flowing with richer ambient and micro detail and feel closer to music with newfound improvements on Nimitra2.

MSRP price of Nimitra2 is $2495 USD. For original Nimitra and Nimitra Signature owner, you can send your original unit to upgrade to Nimitra2 at $1,100 for Nimitra and $600 for Nimitra Signature. This upgrade should be a great value for existing customers to enjoy music better.

 

Nikola2’s Features (As upgrade from Signature):

-Input capacitor is changed to dual capacitor circuit design improving power handling
-Diode is upgraded with higher output current to handle devices like Roon Nucleus+ better
-Capacitors are tuned for better transparency and micro detail without sacrificing musicality

With new changes and improvements on Nikola2, it helps music flowing with Nimitra more coherently with timbre and PRaT done right to make music both enjoyable and believable. This can apply to any device Nikola2 powers also.

MSRP of Nikola2 is $749 USD. Nikola2 has a new circuit design so upgrading with top up price is not possible. Also, most changes are about handling some cases better so Nikola Signature will deliver similar performance with some sound signature changes.

 

Fidelizer will provide free shipping during introductory period for all Nimitra / Nikola purchases in December 2021. I hope this will be a fine Christmas present to audiophiles worldwide and happy listening. 🙂

Introducing Classic series of Nimitra and Nikola, the most affordable highend audio products

 in News

After successful launch of Nimitra and Nikola Signature lineup, I gained a lot of experience and knowledge about building affordable products with better price performance ratio. After a lot of design and listening tests, Classic series of Nimitra and Nikola is finally ready.

The original Nimitra and Nikola have some limitations on pricing and they reached maturity in Signature series later. Classic series has improvements and corrections on original design for 2 years optimizing to get the most from Signature series.

 

Nimitra Classic - computer audio server

 

Nimitra Classic provides full support of Roon Core and Roon Ready with many other features such as DLNA/uPNP, OpenHome (Linn/Lumin), HQPlayer NAA, Airplay, and Squeezebox ready to be used with same optimizations as Signature version with only hardware changes as below.

-Same software features and optimizations as Signature version
-Cost most effective solution for sound quality / features / services
-Compact 1.5mm aluminum thickness chassis for small space
-Cost effective motherboard design with high precision event timer
-Trusted industrial quality components with high reliability

Since audiophile network switch is becoming standards in 2020, WiFi module will not be installed by default for better sound quality. You can choose to install WiFi module if you want to. I can still setup JPLAY and others as optional requests also.

 

Nikola Classic - linear power supply

 

Nikola Classic shares the same circuit design as original Nikola. It has some parts changed and adjusted to deliver better price performance ratio with high synergy to perform well in any system musically with some changes as below.

-Same circuitry design as original Nikola
-Regulator tuned for high synergy musical performance
-Compact 1.5mm Aluminum chassis for small space
-Audiophile grade capacitors used in some flagship products
-16 AWG teflon insulated copper internal wiring

I managed to find better cost effective parts with some design changes to bring the better performing products at more affordable price. Nikola Classic will be an ideal linear power supply solution for EtherStream and many other products with linear power supply too.

 

The price of Nimitra Classic is $995 USD and price of Nikola Classic is $395 USD. All Nimitra and Nikola products will have free shipping during introductory period until 31st October 2020 with 30-day money back guaranteed.

You can also purchase Nimitra and Nikola Classic series with EtherStream with free shipping and 2 outputs termination at $1785 USD. This combination is even more affordable than Nimitra Signature server and I hope this will help making highend audio more affordable.