Abstract: A speaker (20) includes a cabinet (21) extending along a longitudinal axis (X) between a first and a second end (21a, 21b). The cabinet (21) includes a side wall surrounding an internal volume and provided with an opening to place the internal volume in communication with an outside environment. The speaker (20) also includes a sound transducer (22) and a connection circuit (23) configured to receive a signal and to transmit the signal to the sound transducer (22). The speaker (20) also includes a first and a second passive resonator (24, 25) each including a vibrating panel (24a, 25a). The vibrating panels (24a, 25a) are positioned in the internal volume, with respective first faces facing each other and respective second faces opposite the first faces. The internal volume includes a first, closed air volume (V1) delimited by an inside surface of the cabinet (21) and by the second faces of the vibrating panels (24a, 25a).

Abstract: A modular speaker (100) includes a main module (200) defining a speaker (20) and including a cabinet (21) extending along a longitudinal axis (X) between a first and a second end (21a, 21b), a sound transducer (22), provided at the first end (21a) of the cabinet (21) and a connection circuit (23), provided at the second end (21b) of the cabinet (21). The modular speaker (100) also includes a rear module (300) selectable from a plurality of rear modules (300) and connectable reversibly to the second end (21b) of the cabinet (21) and a front module (400), defining an acoustic accessory selectable from a plurality of front modules (400) and connectable reversibly to the first end (21a) of the cabinet (21).

Abstract: A sound reproduction system (10) comprises a supporting structure (2) that includes a distribution circuit (23); a loudspeaker box (1) that is removably connected to the supporting structure (2) and includes a cabinet (11) and a sound transducer (12) associated with the cabinet (11); a connection circuit (13), which is connected electrically to the distribution circuit (23) of the supporting structure (2) and is configured to receive a signal from the distribution circuit (23) and to transmit it to the sound transducer (12), the connection circuit (13) of the loudspeaker box (1) being connectable to the distribution circuit (23) of the supporting structure (2) at a plurality of angular positions, rotated relative to each other about the longitudinal axis (A).

Abstract: A modular, acoustic amplification apparatus (100) comprises: a first module (1), including a first casing (11) and an acoustic amplifier (12) positioned inside the first casing (11), wherein the first casing (11) has the shape of a parallelepiped having a first base and a first height (H1), wherein the first base has a first long side (L1) and a first short side (C1); a second module (2) including a second casing (21) and a power supply or an accumulator positioned inside the second casing (21), wherein the second casing (21) has the shape of a parallelepiped having a second base and a second height (H2), wherein the second base has a second long side (L2) and a second short side (C2).

Abstract: An acoustic device (1), comprises: a container (2); a passive resonator, including a suspension (3) connected to the container (2) and a radiator (4) connected to the suspension (3), where the suspension (3) is configured to allow the radiator (4) to vibrate relative to the container (2), a structure (5) having at least a first connecting point (51), where it is connected to the radiator (4), and a second connecting point (52), where it is connected to the container (2), the structure (5) being movable alternately between a first position and a second position, responsive to a vibration of the radiator (4); one or more masses (61, 62), spaced from the radiator (4) and associated with the vibrating structure (5).

Abstract: A control system (1) controls the vibration of a platform (2), the platform is formed by a fixed lower support (2a), an upper support (2b) and a plurality of intermediate bodies (2c). The control system (1) includes at least one vibration generator (3) inside the platform (2) between intermediate bodies (2c) and comprising a stator body (4) and at least one vibrating body (5), made of material that is magnetic and concentric with respect to the stator body (4) and in a position that is radially external around the stator body (4), configured to vibrate the upper support (2b) with respect to the lower support (2a). The control system (1) also includes an electric circuit comprising a coil wound around the stator body (4) and designed to receive an audio and/or video signal to generate a magnetic field by the coil and designed to vibrate the at least one vibrating body (5) of the at least one vibration generator (3) as a function of the audio and/or video signal.

Abstract: A control system (1) controls the vibration of a platform (2), the platform is formed by a fixed lower support (2a), an upper support (2b) and a plurality of intermediate bodies (2c). The control system (1) includes at least one vibration generator (3) inside the platform (2) between intermediate bodies (2c) and comprising a stator body (4) and at least one vibrating body (5), made of material that is magnetic and concentric with respect to the stator body (4) and in a position that is radially external around the stator body (4), configured to vibrate the upper support (2b) with respect to the lower support (2a). The control system (1) also includes an electric circuit comprising a coil wound around the stator body (4) and designed to receive an audio and/or video signal to generate a magnetic field by the coil and designed to vibrate the at least one vibrating body (5) of the at least one vibration generator (3) as a function of the audio and/or video signal.

Abstract: Described is a system (1) for transmitting electrical power comprising a sinusoidal alternating current generator (2) which can be connected to a power supply source and operating at a non-resonant fixed frequency, a transmission circuit (3), of the non-resonant type, connected with the current generator (2) using a closed path and configured to generate a magnetic field and at least one receiver circuit (4), of the resonant type, which can be connected to a user (U) and which can be positioned in a space close to the transmission circuit to be immersed in the magnetic field generated by the transmission circuit (3) in such a way as to generate an induced current for powering the user (U). The receiver circuit (4) is designed to maintain a tuning between the fixed frequency of the current generator (2) and a resonance frequency of the circuit receiver (4).