Stein Music

Harmonizer system

Product #: Harmonizer system

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New Series of the Award winning Harmonizer System

The award winning Harmonizer System is now available in a further improved version. The internal Harmonizer Modules were redesigned for an even smoother tone and a better distribution of their effect. Harmonizers are available now in black and also in white color. There is a separate compartment for the battery case which is easy to open with one screw only. The batteries are in here pretty tight, so that you may ship the Harmonizers without batteries getting loose. Harmonizers do not have an external power supply anymore, they use 4 AA batteries which are easily available all over the world. Modern Alkaline AA batteries last more than two years with the Harmonizers on all time (while the LED is off), Lithium batteries even 8 years. This makes it much easier to place them in the room rather than using an external power supply.

Harmonizers now also have an integrated thread in the bottom plate, where you may directly mount stands or wall brackets. Stands have been completely redesigned, using a 12mm round polished metal bar and a black lacquered 20mm MDF base with rubber feet that are fine for all kind of floors.

Harmonizers come in sets of two, which include:
1x H2a
1x H2b
2x Wall brackets
2x Black Stones
and as an option:
2x Stands

Two sets is the most commonly used variant, however you may also start with one set or further improve the system using three sets. For best results we recommend using the Harmonizers together with Steinmusic Blue Suns.


The Harmonizer H2a and H2b are two identical-looking cubes with similar technology. However they are completely different regarding of the internal structure, and so also have significantly different effects that in the sum complement each other. We recommend using harmonizer in pairs, one H2a together with one H2b.

Black Stones

Black Stones assist the Harmonizers in evenly distributing their effect within the listening space. The Black Stones' operation is essentially based on the same, if less potent, principle as that of the Harmonizers. The Black Stones consist of a carbon-filled epoxy resin form within which the three active elements are contained in a precisely balanced ratio. Although their effect is noticeable when used independently, they are designed to be most effective in combination with the Harmonizer system.

Black Diamonds

Black Diamonds differ from the Stones primarily with respect to activation. Here we use techniques based on quantum physics that operate at a higher intensity than do the Stones. Their application within the Harmonizer system is best applied in conjunction with Stones. Four to five pieces in the right places will work quite effectively. Skilled placement impacts image size in all three dimensions. Like the Stones, the Diamonds are made of a carbon-filled epoxy resin and six active elements in an exactly balanced ratio.

Blue Diamonds

Steinmusic Blue Diamonds are a further development of the Black Diamonds. Here we have increased effectiveness by a factor of three. Blue Diamonds can be used in place of Black Diamonds for a more realistic effect. Again, the Blue Diamonds are made of carbon-filled epoxy resin with nine active elements in an exactly balanced ratio. Used independently, they are capable of achieving an excellent result.

Blue Suns

While developing the Blue Suns our initial intention was to build something for the use in concert halls. The result in the end was a smooth sounding top class device, which you directly hear and do not want to miss any more. The soundstage gets 3- dimensional, not only at the listening place but all over the room. Musicians become a presence unknown before and appear in your room stunningly real.

We recommend the use of the stands that are specially made for the Harmonizer system. With these you have the perfect height, and may also easily find the optimal place in your room.

Read the reviews of Clement Perry (The Stereo Times), Dan Secula (The Stereo Times), Ron Cook (The Stereo Times), Wayne Donnelly ( and others:
Harmonizer System Reviews

Analogue Audio Association
The Stereo Times – Publisher's Choice 2010
The Stereo Times – Publisher's Choice 2011 – Best of 2011 Award
Audiophile – Best Of The Year 2011/2012