The characteristics of a pipe organ
Our hybracoustic sound-radiating system became a reality by looking at the nature itself: We united the principals of sound-waves with the characteristics of an organ pipe, so that air-columns in our system of tubes are moved with the same power and speed as is known from the organ pipe, so to make air-born vibrations that cause the acoustic living sound, when several tones are played simultaneously – contrary to an ordinary loudspeaker which emits all the energy in one direction.An organ pipe has a sound spread at the cut-up of approx. 120 degrees, and at the top (from an open pipe) the sound is spread in all directions. This combination of sound-waves will of course create undulations in the surroundings and thereby make the sound come alive.
Therefore, each unit of our hybracoustic system is built up in the same manner with the two sound spreads: 120 degrees in one end and 360 degrees in the other.
This, combined with the effect of physically pumping an air-column out in the local surroundings, does result in that very living organ sound.
Basis of comparison
Most pipe organs are today build with electronic components for function control, e.g. voltage stabilization of the electric air supply, stop controls, computer based stop devices etc. therefore the electronic age of the organ should be seen as a reality!
The hybracoustic church organ may often due to their high degree of flexibility be adapted even to difficult church rooms, where a traditional pipe organ due to limitations of space and weight can not be placed
It is a fact that many Danish church organs will have to be renovated or even replaced within a time period of 25 to 30 years, causing considerably costs.
The price for a Danish developed hybracoustic church organ is in most cases only 25-30 % of the price for a pipe organ of the same size. The costs for maintenance will also be considerably lower.
Durability
A church organ will have to be functional and durable for several years and it is relevant to raise a query of durability. As we are using the highest degree of workmanship, the question can be cramped to focus on the electronic part of the instrument only.
We have through lots of considerations reached the following minimum requirements:
The electronic parts should be perfectly functioning in spite of large differences in air humidity and temperature without the organ getting out of tune.
The components in use must be of a quality, that they in principle demand no maintenance.
The make up of the components should make it easy to replace with new electronic parts, which may be developed in the future.
Getting proof that the components in the new designed organ are available as spare parts for a period of at least 20 years from the inauguration of the instrument.
All units should be modular, allowing them to be replaced by more modern and economic technology