FIR Audio Project K $2,799 Review
December 12, 2025 § Leave a comment
https://www.headfonia.com/fir-audio-project-k-review/
Of course, FIR also uses their ATOM Venting system for pressure relief and isolation control. Project K comes with the Gold (+2dB/-17dB) module preinstalled. There are no extra XS modules supplied. The Gold (+) module lowers isolation to -17 decibels. It has a rated impedance of 15 Ohms and a frequency response range of 20Hz to 20kHz. FIR uses premium silver internal wiring for the drivers and components.

Aurender AP20 reference all-in-one music server class D integrated amplifier Review
December 12, 2025 § Leave a comment
Aurender upgraded my digital audio source in early 2024 from the discontinued N100SC to the N200, a slightly higher performing cache network transport, which is now reusing the same 4TB SSD previously feeding the N100SC. I know people whose music library consists of 8TB of audio files and more, but even the 4TB is going to last me a very long time, partially because I routinely chuck those music that I never accessed. If I haven’t listened to a recording for over a year, chances are it is not important to me and it’s just taking up space and I won’t mi
ss it. Despite my ongoing hording of a considerable CD collection, I access the Aurender more and more. For the review, I installed a separate SSD with 2TB of files into one of the two rear docking compartments of the AP20. There is no discernible difference in sound quality between sourcing the music files from the N200 via an Audience frontRow USB cable or from the SSD in the AP20 itself. Note that there is no digital output on the AP20, meaning its cache player feeds only the internal preamplifier and cannot be used as a reference cache player to pair with an external DAC

Walk The Magico Factory With Alon Wolf – Part 1
December 11, 2025 § Leave a comment
Founder and CEO Alon Wolf launched Magico, LLC, in 2004. Magico today has a 30,000-square-foot factory located in Hayward, California. This state-of-the-art Magico facility includes many advanced tools, including a full CNC shop, a Klippel Near-Field Scanner, a Klippel QC suite, a Polytec PSV-500 scanning laser vibrometer, and a custom listening room designed to provide an absolutely neutral testbed for product development. The current loudspeaker line includes three distinct Series, all with aluminum as a cabinet component: the accessible A Series, the middle-tier S Series, and the flagship, carbon-fiber-based M Series of speakers, and a full line of noise-reducing footers and racks for optimizing a component-based audio system. Magico has garnered universal acclaim for their products, with hundreds of awards from distinguished members of the press worldwide. Magico products are distributed in 34 countries and the company employs approximately 30 employees. Magico continues to innovate in the field of loudspeaker design and manufacture under the leadership of Wolf and with the help of the strong team he has assembled around him. Research and development are relentlessly pursued at Magico, with groundbreaking products under development on a continual basis.

KECES P14 Ultra Low Noise Linear Power Supply
December 11, 2025 § Leave a comment
The P14 gives you the option to use a 12V trigger for automatic turn-on, but I chose to place the Turn On Options switch located on the back panel in the manual position. This requires you to press the power button on the front panel to turn on the P14. Once you have pressed the power button on, a blue light comes on and the current meters light up. After that, you simply press the Engage switch and you will be outputting 19V to your Roon Nucleus+ and it’s lights, camera, action time.
The first album I played with the P14 powering my Roon Nucleus+ was Roy Haynes We Three (Qobuz RVG 16/44.1) and it quickly showed the improvement to sound quality the P14 brings to the table. The song “Reflection” showed the bass was more powerful and more fleshed out. The piano sounds more fleshed out as well in terms of power and dynamics. Roy Haynes’ cymbals have more impact and air around them. There are also more micro dynamics that brings out more subtle shadings of tone. The overall dynamic range of the music is wider now.


Schiit Audio Stjarna Phono Preamplifier $1,699 Review
December 10, 2025 § Leave a comment
That means that competition for the enthusiasts’ dollars gets harder and harder for manufacturers to earn. The folks at Schiit Audio have risen to that challenge, and, through relentless innovation and continuous improvements, they sell audio components that provide excellent value for extremely reasonable prices.
The Stjarna phono preamplifier is a giant killer. For its $1,699 price tag, you get a very impressive set of features that would cost you $4,000 from other manufacturers. It provides non-fatiguing and detailed analog sound with the reliability of a solid-state architecture. It will work with essentially any kind of phono cartridge, and it has inputs for two cartridges. You can roll the tubes, and you can control it from your phone. I really can’t think of anything it can’t do. Highly recommended.


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