Stein Music



Shift up to the next higher gear and give your hi-fi system a huge boost.
With the H2-PLUS package you will push the boundaries of your listening room and at the same time give more energy to the music as a whole. Give the stage more size and individual musicians significantly more plasticity, and experience a significant increase in power over the entire spectrum of frequencies. Incl. 2 Black Stones and 2 wall brackets.
color: black or white

The SteinMusic H2 System


The basis for the transmission of sound waves is a medium that can transport them. When playing music, this medium is basically air. Air is known to have many properties: Pressure, compressibility, temperature, humidity, oxygen content, odorous or other suspended matter. Above all, however, air has one thing: mass, and at 1.3 kg per m³ not too little. The air mass in the passenger compartment of a passenger car is between 3 and 5 kg, depending on its size. A small room of 30 square meters and normal ceiling height comes thereby on approximately 100 kg air mass, a concert hall with 1800 places and 15 000m³ volume on 20 tons. On the other hand, diaphragm weights of less than 1 gram for tweeters to over 100 grams in the bass range are used to excite these air volumes with sound.

Oscillating parts of instruments have a wider range with respect to their mass. Just think of a harmonica or a concert grand piano. First experiences that crystals have an influence on the acoustics we found out rather by chance: After a new decoration of one of our studios where rose quartz was also used, we had the impression that something had changed in sound. These were little things, but it turned out that everything was exactly the same after we removed these crystals. These changes were also reproducible for other people and over a longer period of time.

Further development

Now the question arose as to how far this principle can be used to achieve a lasting positive influence on room acoustics. This was a rocky road, because many of the ideas that were then processed in a structured manner achieved changes, but unfortunately none that we found positive. In the end, however, we still found two ways of activating crystals, which proved to be extremely positive when used properly: One by electronic means, and a second by quantum physics.

Practical implementation

Over the years, we have developed an all-round harmonious systemfrom this. This system consists of two active H2s as well as the passive Blue Diamonds and Blue Suns. Herewith you can acoustically optimize every room individually. For mobile applications there is a smaller model, the H1. Its compact design makes it easy to use anywhere. There are also smaller passive elements, the Blue Stars.

Practical application

In rooms it is recommended to place one H2 in each corner of the room, always in pairs. In larger rooms, correspondingly more pairs can be used in symmetrical arrangement. These include the passive elements, Blue Diamonds, Blue Suns, Blue Stars.
In a car the harmonizers can be placed in the center console. A second one in the back of the interior improves the effect, but is not absolutely necessary. Fixation of the passive elements with plasticine from the automotive sector.

Easy handling

Harmonizers and Blue Suns must be positioned in the right place for optimal effect. For the H2 there are matching stands and wall brackets. H2 are available in black and white, and can even be placed behind curtains or integrated into furniture. This also applies to the passive elements that are allowed to hang behind a canvas, for example, and which can also be color matched. H2 are current-free through battery operation. Batteries last more than 2 (alkaline) or 8 (lithium) years in continuous operation. In the car the placement of the H1i n the side pockets of the doors is ideal. Here too, the battery life is extremely long with 3 years of continuous operation. When using the SteinMusic H2 system, experience shows thattwo phenomena occurFirst, the air “carries” the sound better, which also leads to the common statement of musicians that it is easier for them to play or sing their instrument. The direct feedback of one’s own actions via the auditory system is more direct, as is the perception of this by the audience. On the other hand, the reflection behavior at the interfaces changes. Small rooms or automobiles are thus acoustically perceived to be much larger when using the H2 System. This is also very beneficial to general well-being.


Positive Feedback Brutus Award 2012

Dynamics, clarity, palpable presence, excitement, definition, air, decay, extension, articulation, less distortion, louder, quieter, 3D soundstage, natural, rich, texture, warm, fast, transmission, timbre, immersion, space, tactile, engagement, propulsion, ease, etc… everything is there in abundance… everything is here. And in a very good way.
-Dave Clark Blue Note Award 2012

The best piece of equipment I've reviewed this year is actually …the Stein H2 Harmonizers”
-Dr. Bill Gaw

Stereotimes Most wanted Components Reviewer’s Choice Award

The Harmonizers impart a soul-satisfying sense of dimensionality and body.”
-Mike Silverton

To achieve the perfect sound, SteinMusic places great emphasis on precise craftsmanship and careful development. Each product is made in Germany by experienced craftsmen and technicians who use their extensive know-how to achieve the highest sound quality in our products.

Through a combination of advanced technology and traditional craftsmanship, we strive to provide the best possible listening experience. Our commitment to quality and detail-oriented manufacturing is central to our philosophy of creating audiophile products that meet the highest standards.

Handmade in Germany SteinMusic

Worldwide Shipping: We ship our products worldwide.

  • Germany:
    • Express: 1-2 business days.
    • Standard: 2-4 business days.
  • Europe:
    • Express: 1-4 business days.
    • Standard: 2-8 business days.
  • Rest of the World:
    • Express: 2-5 business days.
    • Standard: 5-13 business days

Shipping costs

The shipping cost for your region will be displayed in the checkout process. Please note that additional duties or import fees may apply and are the responsibility of the customer.

Return Policy

You have 14 days after receiving the goods to test the product and return it if necessary.

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