Bass-Horns (2017)
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Materials: steel, copper
Weight:
Dimensions: width 200cm [=6,6 ft.] x length 140cm [=4.6 ft.] x height 120cm [=3.9 ft.]

Tenor-Horns (2017)
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Materials: steel, copper
Weight:
Dimensions: length 220cm [=7.2 feet] x width 80cm [=2.6 feet] x height 140cm [=4.6 feet]

D-Pfeifen (2010)
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There are two groups, consisting of sixteen rectangular pipes, each of which are served by a valve-block. The compressed air is released through a nozzle into the open pipe. The overtones can be achieved by subtle variations in air pressure and direction. A compressor serves as a wind machine.

Materials: rectangular pipes, nozzles, valve island
Weight: 30 kg
Dimensions: height 220cm [=7.2 ft.] x width 40cm [=1.3 ft.]

Copper-Horns (2010)
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A horn group consists of 64 horns, small, modified ship’s horns. 32 horns have copper bells whose sound color is reminiscent of trumpets. Each wind machine is powered by a portable air compressor of the type used in road construction with a minimum pressure of 7 bar or 100 psi (pounds per square inch) and an air flow capacity of 1.000 to 2000 CFM (cubic feet per minute), These units have an operating dBA as low as 64 db which significantly reduces the incidence of unwanted noise. The ship’s horns are tuned diatonically and are controlled by a computer.

Materials: steel, copper
Weight:
Dimensions: length 220cm [=7.2 feet] x width 80cm [=2.6 feet] x height 140cm [=4.6 feet]

EPX-Horns (2007)
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A horn group consists of 64 horns, small, modified ship’s horns. 32 horns have glass fiber and synthetic resin bells whose sound color is reminiscent of English horns. The ship’s horns are tuned diatonically and are controlled by a computer.

Materials: steel, copper, glass fiber synthetic
Weight: 150 kg
Dimensions: height 400cm [=13.1 ft.] x width 200cm [=6.6 ft.]

Helix-Horns (1989)
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The development of the sound generator for the Helix Horns took several attempts, the last and best solution was the “Zetfon,” the sound generator for a classic ship’s horn produced by the Zöllner Company and which was adapted for the Helix Horn.

There are eight Helix Horns in different sizes and fundamental notes, each fitted with its own electrical pneumatic sound generator. A specially constructed MIDI-control allows each Helix Horn to play several notes and their overtones.

Materials: steel sheets which galvanized in a silvery sheen
Weight: 110 kg
Dimensions: several sizes; the more slender design is 3.50 meters [=11.5 ft.] high, has a total length of 12 meters.