A nice panoramic view at the hooded Tubas and the mechanical action for the Récit Expressif and the Grand-Choeur. Also the first windchest of the Récit Expressif and some reservoirs can been seen. The lowest 12 resonators of the Tuba Magna 16' are made at 8'-length. From middle c the Tuba Mirabilis and the Cor Harmonique are harmonic.
Behind the tubas the some small foundation stops and the mutation stops of the Pédale.
Instruments | St. Eustache, Paris | Tubas