What a nice amplifier, very quiet, black background. Lots of details, very nice placement of instruments and artists. Super tight bass reproduction. Play with Meze 109 pro headphones. Previously I had a Creek OBG21 headphone amplifier, but this is such a big leap forward that I never dared to dream of it. Questions were answered quickly, seriously and honestly. In short, very satisfied.

This little box is a great surprise! The sound quality is very good and sounds great with my hi-fiman Edition X. Very good, the Arya also sounds very good on it. It is very well built and convenient in daily use. Only the settings that you don't use much are at the bottom, which might have been better. Otherwise a top amplifier!

I have been listening to this upgraded SU2 by Magna Hifi marvel for over a month now and I am surprised that it is improving every day. I did not know that soaking was so important to digital circuits but the facts are here, the way that it is improving every day seems to suggest that it will improve as time passes. Congratulations.

The SU2 is great, taking advantage of its 10Mhz master clock input. Great feature! I can't remember such positive results from a single purchase. I ended up buying a 2nd one for my other system.

Very helpfull - singxer su2 is easy to install - more details with I2s to Spring KTE against USB - little bit more bass

The Singxer F1 sounds great. Since I can now use the ifi iPurifier again, the signal is even a little more relaxed than before

WoW - I am really impressed ! Much better sound with Singxer SU6. Even though it has been already great now it is really better. I am happy! Many thanks Adam

The Singxer SU6 is superior in imaging, texture, bass definition, dynamics and detail.

After ordering, delivery was fast, because it was on stock. My MicroRendo has USB out and I needed a converter, which has data simultaneously available in AES, SPDIF (RCA and optical), I2S (HDMI, RJ45) format. Instead of the included PSU, I powered it with a SBooster 9V lineair power supply and the USB port with a SBooster 5V lineair power supply. I use two DACs simultaneously, a Sabre DAC for the loudspeakers, a NOS DAC for the headphone. This is the best sound, I can get with my DAC's, even Spotify sounds like near_CD quality. This is a DDC and just a link in your whole equipment chain, so the final sound depends on the rest of your installation. But as they say "garbage in, garbage out", the source quality is the start of the chain.

Thanks! Sounds a lot nicer indeed! Wow! Thank you for your advice, very happy.

Have been enjoying the Singxer SU6 for about one month now and am very happy with the sound. Am still in the "running in" phase but even now the system is sounding both more musical & much more richly detailed.

Had a great listening evening yesterday. To be honest, the sound with the Singxer SU-6 (coming from my Vortexbox Audioserver premium xl) is breath taking. I am really surprised how it works that way and why others are (probably) do not include this technology …. in addition, I have tried several components and settings, nothing works like the singxer …. Great weekend! Michael

Seems to work well with my Wireworld Silver Sphere HDMI cable and my Holo May KTE. My whole system sounds ‘right’ now in a way I’ve never heard before. It’s a feeling that’s similar across all input formats and musical genres. Excellent soundstage, neutral frequency response, realistic timbre, excellent micro detail, good low end drive and the blackest of black backgrounds.

First, outstanding customer service from Jos. I was sent the wrong item and he took care of the issue immediately. Now on to the review. I had been using my Gustard R26 connected to my pc with a wired internet connection. When I received the SU-6, I connected the pc via USB and the R26 with IIS. The sound was better, but not by much. My initial impression was I paid HOW much for this? I told Jos I was not impressed with the SU-6 and he told me to wait. A couple of weeks later I turned my preamp and amp off but forgot to turn off my PC and left roon running overnight. When I turned my preamp and amp back on the next day, I was stunned. The sound had completely changed. There was more clarity in the music, more depth, and a bigger soundstage. I now have about 80 hours of use and the sound has improved further. I was told the sound will reach it's peak improvement after about 300 hours. The SU-6 makes the journey to get there fun and enjoyable. I highly recommend it, it's well worth the price. Just be sure to give it time to reach it's full potential.

I am very happy with the sound. The first hours it wasn't very impressive but now the sound has improved a lot. After 150 hours the SU6 started to shine!

Processeur de trois master sr, le must absolu. Dynamique, transparence, fluidité et resolution incroyable. Un sais deja genial, deux sais mieux. Installer sur innuos zenith mk3, holo audio spring kte, et sr inter Ethernet, holigraphie musical a tous les etages. Decidement SR sais ma marque préférée pour cablage et tweeks. Une boîte magique que SR. Tous leurs produits sont interdependants. Ou seul.Même sur dz materiel moyen de gamme sa apporte toujours un beaucoup mieux. Dit Jos, a quanf sr vendu chez vous. Amicalement votre

Upgraded my equipment with Synergistic Research Pink fuses. Absolutely top experience both sonically and during the buying process. (from trustpilot)

It's absolutely mindblowing what this Switch makes out of even poor quality MP3 Streams! They become new Party staple networks since I can play them really loud now! the timing, the blackness and the dynamics...wow😃! I have it installed with the Farad Super 3 Power supply and it works with a McIntosh C2800 Tube PreAmplifier with it's regular on board DAC.

Easy, smooth and very pleasant transaction, as always is with Magna Hifi guys. I think Bliss deserves a spot in solid state hall of fame. It has has both an amazing sound quality and an amazing character. It can run literally any headphones well, has all the necessary features and doesn't have any obvious flaws. For many it may be the end of the road in the search for a perfect solid state headphone amp. It was for me. It's a bliss :).

It's been working for 5 hours already and it's already a great experience. Whether with the Meze Elite headphones (fantastic and by far the best headphones I own) but also the Focal Stellia (which I have to wear at night to avoid not bother)... And yet the stellia is a difficult, even brutal, headphone, but it sounds much better with Holo Bliss.

It sounds fantastic right from the start. Compared to my other expensive headphone amplifier: The sound is more refined, with better instrument separation and more holographic sound stage. And everything is more calm, the music so easily flows into the ears. Another brilliant unit from Holo Audio!

The Holo Bliss sounds fantastic. Can't stop listening. What a dream! I didn't know the Susvara sounds so beautiful. Cheers.

SERENE KTE performs nicely right out of the box. It finally brought back to life my home theatre and media center with all it's analogue and digital connections all together. In the "digital" part of my chain SERENE performed precisely as expected. Connected to HoloAudio MAY KTE, it is absolutelly not in the way of sound, it is transparent and precise, like it is not there. However in the "analogue" chain SERENE has surprised me ! With it's crazy level of transparency it has shown exactly what I have - good phono stage (from Kitsune HifI) and somewhat average turntable. But ! Now I CAN hear all smallest imperfections coming from the turntable. My analogue chain became really sensitive to quality of a records. The good ones are simply - EXCELLENT ! The medium ones - honestly, you just don’t want to listen to. IMHO, this is the whole point of "vinyl story" - hunting for and collecting the ultimate quality recordings. My previous pre-amp was hiding all this and coloring the sound with mellow low registers. One could have considered that being better, may be... But SERENE is just plain honest. At last, don't underestimate break-in period. Now, over alsmost four days of constand listening "out of the box" harshness went away and SERENE settled well into the system. Highly reccomeded!

I thought I would send you some initial listening impressions after a longer music session last night. In a word ‘Wow!’ I have ‘tested’ the Serene KTE preamp using my Technics SL 1200G turntable and some high quality half-speed mastered vinyl recordings. These sounded even better than when played through my Schiit Freya S balanced preamp. Both the May KTE and Serene KTE are clearly superbly designed and built products. It was a bit of a gamble spending so much when I already had a good DAC and Preamp, but the new Holo audio gear has exceeded all expectations. I think I now have my ‘end game’ audio system..for now 😉 Thanks you Jos and Rob for your advice and help.

Singxer SA1 is the best preamp for my headphones! It delivers 6 watts in class-A. Deep and rich soundstage. Happy customer - great Magna service!