HOLOGRAMM-X premiere
6moons:

"Spoiler alert! For us, room 206 was best of show. Why? After the last room's aural defiance, we were instantly enveloped by a sound so natural in all possible aspects that once seated, this perception grew even stronger. The music did not come from any loudspeakers. It was performed on stage, elevated as though we sat in row 3 of the recording venue where the instruments too had their own height information. A double bass on stage has its navel or centre of radiance quite high. That tall information was available without effort. It was simply there. After realizing the completeness of the aural illusion sent to us, we both underwent another rare sensation: tears rolling down our cheeks. Maybe we were getting sentimental old geezers but no, it was the music. This was more than a replay of a recording on a system. This was emotional interaction from musicians to audience.

Closest to it would be a quantum entanglement where two particles interconnect despite vast distance between them and despite what should be a lenghty communication delay. Here musicians recorded tunes years ago, had them manipulated by many people and techniques yet finally the musical message, the originally intended message, was presented to us as the listeners as though in real time. Hot damn; goose bumps 'n' tears at an audio show. So what induced all this emotional response?

A system comprised of MSB Technology M204 250-watt monos, matching MSB Select DAC with double external power supplies and an older MSB transport. The speakers which made it all happen were SoulSonic Hologramm-X dipoles. Cold hard figures were 95dB efficiency, 25Hz-25kHz bandwidth, crossovers at 200Hz and 4kHz. Drivers were 4 x 15" paper cone woofer, 1 x 12" paper cone midrange and nothing less than a 2.21m tall 1cm wide ribbon as tweeter. The drivers mounted to individual wooden cylinders with open backs. These cylinders stacked in a shallow crescent which in turned mounted to a tempered glass plate curved at the top and outer edge. On the straight glass edge there mounted to a pole like a very narrow banner the extremely tall ribbon tweeter.

Designer and manufacturer Miro Krajnc shared how this model was originally intended for personal use only but is an extension of his SoulSonic line which starts with the Beat, a 2-way with a 95cm ribbon and 10" woofer, then the Impact 3-driver 2-way with a 1.45m ribbon and 2 x 12" woofers. The Impulse becomes a 3-way with a 1,85m tall tweeter, 12" midrange and 3 x 12" woofers whilst the Hologramm-S is the smaller brother of the Hologramm-X of the show. The S sports an 1.8m ribbon tweeter, one 12" midrange and 4 x 12" woofers. All models use a glass baffle to prevent early dipole cancellation. From Podvelka in Slovenia, this designer also is the man who developed Ubiq Audio's Model One and many others. We could not get enough of his Hologramm-X and even came back for seconds. It was that special."

Natural Sound Samurai:

"Next door we listened to Japanese Audio Tekne electronics and Natural Sound Samurai speakers from Slovenia. These 3-ways have crossover points at 200 and 2'500Hz and cover 25Hz-20kHz with an efficiency of 94dB. This is accomplished with a 23cm AMT tweeter loaded with a horn; mid frequencies in the hands of a 12" paper cone; and the bottom end from an 18" woofer in a bass reflex box. The model TEA 2000 was Audio Tekne's phono stage and the TFM 2000 an 8wpc integrated push-pull design with 6AS7G tubes. Turntable on duty was a Vertere MG-1 with SG-1 arm. With us being so early that we had the room to ourselves, the sound quality was fantastic: clean, open, dynamic and with a deep soundstage. Width was not at par with the rest, possibly due to close wall proximity relative to the horn flare. Maybe a stronger toe-in would have helped? But that also would have limited the listening area to one or two seats. Anyway, a good start for a show day."

6moons conclusion:

"And that was the last room of the National Stadium for us this second day of the show. Still full of the impressions and particularly that of the SoulSonic Hologramm-X, we took the shuttle bus back to our temporary home at the Sobieski hotel."

Soundstage!Global

"The SoulSonic Hologramm-X was one of two speakers at Warsaw created by designer Miro Krajnc. The Hologramm-X stands about 7-1/2’ high, and incorporates a driver array we’ve never encountered before. The big cylinders house five drivers, each in an open-back enclosure. In In the middle cylinder is a 12” paper cone midrange, and each of the other four houses a 15” woofer. The treble comes from a ribbon tweeter measuring 1cm by 221cm and stretching nearly from the bottom of the speaker to the top. The speaker is rated at 95dB sensitivity. At first glance, it seems like integrating such a disparate and widely spaced group of drivers might be impossible, but the Hologramm-X’s big soundstage and neutral tonality made it one of the best speakers we heard at Warsaw’s PGE Narodowy Stadium, which hosted many of the larger audio companies’ exhibits.

The other Miro Krajnc creation being demoed in Warsaw was the Natural Sound Samurai, which looks quite a bit different from the SoulSonic Hologramm-X but shares some design traits and achieves similarly impressive performance. Again, a 12” paper-cone midrange is used, sharing the trapezoidal base with an 18” woofer. The top section holds a 23cm-high air-motion transformer (AMT) tweeter, similar to those found in speakers from GoldenEar Technology, MartinLogan, and others, but much taller. It’s mounted in a wooden horn to increase efficiency; the sensitivity of the speaker is rated at 94dB. The Samurai is built in two locations, depending on which markets are being served: Poland and United States (Los Angeles, California)."

HIFI PIG

"I’ve been hunting down these distinctive Natural Sound speakers for some time, after hearing them last year at the show and then not being able to find out more about them. The pair on show were the Samurai, and to me they are some of the most beautiful looking and sounding that I have encountered…if we didn’t have our beloved Avantgarde Acoustic Duo XDs, I’d be seriously considering a pair of these. What really makes them special is the air motion tweeter in a horn, I like them a lot…. And then to the other Natural Sound Skybox which featured these, pretty unusual huge Soulsonic speakers, you can’t really see but they feature a ribbon tweeter down the edge. Again stunning sounding."

Hiendnews Greece

"Hard to describe this piece accompanied by the MSB collection. The Hologram X, by Soulsonic, created by Miro Krajnc, a very distinguished and fragile audiophile, who was at the Warsaw show to show his pieces of art and the creation of sound, and in his case vision, in musical reproduction was very well accepted by those who had a chance to sit down and listen to these speakers, system. A true blessing. I will be reviewing the Hologram X in a few months so we will have the chance to know what they can do in a controlled environment, but I can tell you from now is that, it is nothing less than mind blowing in nature. Cost is only at 150 to 210 grand depending on finish, and it is worth all the effort and endless hours you receive from such pieces of art, which will do nothing but go up in price rather than down."

Mono And Stereo

"Miro Krajnc certainly enjoyed quite a spotlight at the AVS. There were three speakers at the show, that he either designed completely or provided the acoustically engineered part. First and foremost was the impressive SoulSonic Hologramm-X (Miro`s own speaker company) that I've already had a pleasure to reveal at Mono & Stereo here. These three-way flagships start at 150k and represent one of the most stress-free sounding speakers among floorstading types, regardless of price. And the reason? The "skyscraper" high ribbon tweeter (one piece, 2.21m tall) and the cardioid dipole configuration of mid and bass drivers. With 95dB sensitivity, the Hologramm-X is entering the realms where even lower power solid state and tube amplifiers can be used with full satisfaction. At the show Hologramm-X were driven by MSB Technology M 204 pure class A monoblocks and fronted with MSB Technolgy Select DAC acting as both DAC and preamplifier. As far as I can recall, this was the only setup with the state of the art Select DAC...
The other two speakers were Natural Sound Samurai and Ubiq Audio Model One speakers. The Samurai uses AMT tweeter in a distinctively designed horn and the Model One a compression driver in a wave-guide/horn. There is a certain, recognizable sonic DNA, that is associated with all of Miro`s designs and always points towards the timbral correctness and possesses the raw energy of the music."

Part-Time Audiophile: Miro Krajnc impresses with his versatility in speaker design at the Audio Video Show 2017

"Names like Andrew Jones, Laurence Dickie and Joachim Gerhard do ring a bell? From what I have found or better auditioned during the Warsaw show we must add Miro Krajnc to the list of modern speaker designers. Miro is the mind behind the Ubiq Model One, the Soulsonic Hologramm X and the Natural Sound speakers.

I will focus this report on the Soulsonic Hologramm X, an imposing hybrid design standing more than two meters tall and packing four 15” neodymium magnet woofers, a 12” paper-cone midrange driver and a ribbon tweeter good for 221 square cm effective radiating area. That is what goes on my book as a massive full range design. In the National stadium it was paired to MSB electronics, the stunning MSB Select II DAC with two mono power supplies, MSB transport and two MSB 204 mono power amps.

Sound was big, airy and very detailed, soundstage was wide, very wide actually and quite deep too, which for show conditions and with only some room treatment covering the big glass window behind the speakers was unexpected.

What I found even more impressive is the fact that Miro is one versatile designer. The Ubiq One speakers in the Sobieski hotel had nothing to share with the Soulsonic brand and the same can be said for the Natural Sound line. The Natural Sound (playing with Audio Tekne and Vertere) for example had a horn loaded air motion transformer tweeter working with a 12” mid and an 18” woofer, the Ubiq had a big wave-guided tweeter, an 8” mid and a 12” large diameter voice coil woofer. He is using pretty much any given design form, driver and finish for an always interesting end result."


FairAudio:

"Mangelndes Selbstbewusstsein kann man dem slowenischen Lautsprecherhersteller Soulsonic und seinem Mastermind Miro Krajnc wohl kaum zum Vorwurf machen. Soulsonics übermannshohe Dipole Hologramm-X sind wirklich nicht zu übersehen, was auch klanglich eine echte Unterlassungssünde wäre.
Ein 12-Zoll-Mitteltöner(!), gleich vier 15-Zoll-Basstreiber(!!) und ein 220 Zentimeter langer Bändchenhochtöner(!!!) ergeben nahezu einen halben Quadratmeter abstrahlender Fläche pro Seite. Zusammen mit ganz feiner Elektronik von MSB (u.a. dem über 90000 Euro teuren MSB Select DAC) ergibt sich ein den Raum vollkommen mit Musik flutender Klang. Klasse ist, dass trotz der Riesenflächen auch kleinere Schallereignisse, wie Solovioline oder eine Gitarre nicht maßlos aufgeblasen, sondern in realistischer Größe reproduziert werden. Doch so richtig ab geht es, wenn große Symphonik auf dem Programm steht. Dass wäre mein Lautsprecher für Mahler, Bruckner und Wagner."

Jacek K³os - HiFi i Muzyka:

"One of the most unusual speakers on AVS Warsaw 2017 - flagship Hologramm-X from Slovenian manufacturer SoulSonic. An unusual combination glass with wood, beaded transducers and no typical housing - it does not happen every day. The wooden sleeves are open

12-inch midrange speaker and four 15-inch woofers. A tall treble, stretching through the entire column,  2.2 m. It is unique because it is made by the founder, owner and chief constructor of SoulSonic - Miro Krajnc. In the margin it is worth adding that he is also the author of the Ubiq Model One speaker construction.
Hologramm-X has 95 dB efficiency, so they should correctly  play even with a not too strong tube amp. However, in Warsaw a heavy artillery was used in the form of M204 MSB monoblocks. Realism, purity and the color of the musical message turned out to be amazing. Glass screens played with very high resolution, so they showed even subtle differences between recordings. They reproduced with child's ease any repertoire, including those rhythmically and dynamic tracks. The apparent sources were like a scalpel, precisely defined, also on the vertical axis. Big surprise and without a doubt, a place on the podium.
                                                                                  Munich Hifi Deluxe 2018

HiFi Pig:

"Total DAC, the awesome SoulSonic Hologramm-X loudspeakers all wired with Tellurium Q’s latest cables, Statement…expect a review in early Autumn. The sound in this room was something else, displaying effortless power and a concert hall-like experience. We first came across these in Warsaw and once again they did not disappoint."

SoundRebels:

"TOTAL DAC, HOLTON PRECISION AUDIO, SOULSONIC, TELLURIUM Q - But one thing to justify such monstrous speakers can be said - they played phenomenally, that is, full of concert swinging sound."
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