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Musical Staircase Powered By Proel Amplifiers At Piazza Duomo
Proel Amplifiers carried the day for this major installation.
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Proel Amplifiers were chosen by Hollywood Service, responsible for the outfitting of a real piano keyboard built on the stairs leading out of Milan’s subway station of Piazza Duomo for “LiveMi”.

LiveMi is a major initiative aimed at relaunching Italian emergent music, under the artistic direction of Italian Music TV personality Red Ronnie and supported by the Municipality of Milan and by ATM (Milan’s public transportation company).

LiveMi offers artists and bands having their own repertoire a series of important and free opportunities for their career.

The musical staircase was installed last December for the inauguration of LiveMi; passengers going up and down the stairs of the subway station of Piazza Duomo have the opportunity to press the keys of a giant piano made up by the steps of the staircase, each of which is associated to one or two musical notes.

Built in just one night, thanks to Hollywood Service, with the technical supervision of Mario Di Cola, conceived and designed by Francesco Penolazzi, the huge piano staircase is powered by two Proel HPD3000 amplifiers, running at full operation 24 hours a day.

Musical Staircase At Piazza Duomo

“The HPD3000 amplifiers are exceptionally reliable”, explains Francesco Penolazzi.

“It’s exactly this feature that convinced us to choose them, considering the wheather conditions and the context in which they have to operate: from the cold of winter to the warmth of spring, under the staircase of a subway station.”

“I can absolutely affirm that they performed wonderfully…”

Further information about the installation is available at Video of the staircase is embedded below,


Proel Amplifiers Website

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