Electromechanical transducer suitable for generating vibrations to be transmitted to an external mounting wall, comprising: - a housing which includes a base suitable to be solidly connected to said external mounting wall; and, arranged inside said housing at least: - a coil which is fixed to at least said base and devised to be electrically powered; - a magnetic circuit which is movable along a virtual reference axis and comprises at least a lower polar element, an upper polar element, and a magnet interposed between said lower and upper polar elements (21, 24); - at least a first centering element comprising at least a peripheral portion constrained to said housing, a central portion, and at least an elastically deformable intermediate portion which is arranged between and interconnects said peripheral and central portions (32, 34); - a fastening means which is arranged along said reference axis and is fixed to the upper polar element thereby fixing solidly said central portion to an upper surface of a first upper wall of the upper polar element; and - an elastically deformable element having a dome-shaped body which is positioned between said central portion and said fastening means with its own concavity facing towards said central portion, and wherein, following the fixing of said central portion to the surface of the first upper wall by means of said fastening means, the elastically deformable element deforms at least partially with at least one peripheral circular portion thereof which rests on pressing against a corresponding circular surface of the central portion, characterised in that: said upper polar element comprises a cup-shaped body which includes, at a substantially central portion, said first upper wall, a second upper wall, which extends along the peripheral edge of the cup-shaped body, and a recessed area which is provided between the first upper wall and the second upper wall, and wherein, following the fixing of said central portion to the upper surface of the first upper wall by means of said fastening means, said at least one peripheral circular portion rests on pressing against a corresponding circular surface of the central portion which in turn rests on and is pressed against an upper surface of said second upper wall. - a housing which includes a base suitable to be solidly connected to said external mounting wall; and, arranged inside said housing at least: - a coil which is fixed to at least said base and devised to be electrically powered; - a magnetic circuit which is movable along a virtual reference axis and comprises at least a lower polar element, an upper polar element, and a magnet interposed between said lower and upper polar elements (21, 24); - at least a first centering element comprising at least a peripheral portion constrained to said housing, a central portion, and at least an elastically deformable intermediate portion which is arranged between and interconnects said peripheral and central portions (32, 34); - a fastening means which is arranged along said reference axis and is fixed to the upper polar element thereby fixing solidly said central portion to an upper surface of a first upper wall of the upper polar element; and - an elastically deformable element having a dome-shaped body which is positioned between said central portion and said fastening means with its own concavity facing towards said central portion, and wherein, following the fixing of said central portion to the surface of the first upper wall by means of said fastening means, the elastically deformable element deforms at least partially with at least one peripheral circular portion thereof which rests on pressing against a corresponding circular surface of the central portion, characterised in that: said upper polar element comprises a cup-shaped body which includes, at a substantially central portion, said first upper wall, a second upper wall, which extends along the peripheral edge of the cup-shaped body, and a recessed area which is provided between the first upper wall and the second upper wall, and wherein, following the fixing of said central portion to the upper surface of the first upper wall by means of said fastening means, said at least one peripheral circular portion rests on pressing against a corresponding circular surface of the central portion which in turn rests on and is pressed against an upper surface of said second upper wall.