A bone conduction device (100, 200), comprising: an electromagnetic actuator including: a bobbin assembly, including a bobbin and a coil wrapped around a core of the bobbin, configured to generate a dynamic magnetic flux when energized by an electric current, and a counterweight assembly configured to generate a static magnetic flux (580, 584); wherein the assemblies (354, 355) are constructed and arranged such that two axial air gaps are located between the bobbin assembly and the counterweight assembly such that the dynamic magnetic flux flows through the bobbin and counterweight assemblies (354, 355) via the two axial air gaps (470a, 470b), whereby during operation of the bone conduction device (100, 200) the dynamic magnetic flux and the static magnetic flux (580, 584) interact in the axial air gaps to generate a net magnetic force in an axial direction and cause relative movement between the bobbin assembly and the counterweight assembly, wherein the assemblies (354, 355) are further constructed and arranged such that: (i) at least two radial air gaps (472a, 472b) are located between the bobbin assembly and the counterweight assembly, (ii) the radial air gaps (472a, 472b) extend in a plane normal to the direction of relative movement between the bobbin assembly and the counterweight assembly, (iii) the static magnetic flux (580, 584) flows through the radial air gaps (472a, 472b), and (iv) no substantial amount of the dynamic magnetic flux flows through the radial air gaps (472a, 472b) during operation of the bone conduction device (100, 200), wherein the assemblies (354, 355) are constructed and arranged such that the static magnetic flux (580, 584) flows through the bobbin and counterweight assemblies (354, 355) via the radial air gaps (472a, 472b) and the axial air gaps (470a, 470b). an electromagnetic actuator including: a bobbin assembly, including a bobbin and a coil wrapped around a core of the bobbin, configured to generate a dynamic magnetic flux when energized by an electric current, and a counterweight assembly configured to generate a static magnetic flux (580, 584); a bobbin assembly, including a bobbin and a coil wrapped around a core of the bobbin, configured to generate a dynamic magnetic flux when energized by an electric current, and a counterweight assembly configured to generate a static magnetic flux (580, 584); wherein the assemblies (354, 355) are constructed and arranged such that two axial air gaps are located between the bobbin assembly and the counterweight assembly such that the dynamic magnetic flux flows through the bobbin and counterweight assemblies (354, 355) via the two axial air gaps (470a, 470b), whereby during operation of the bone conduction device (100, 200) the dynamic magnetic flux and the static magnetic flux (580, 584) interact in the axial air gaps to generate a net magnetic force in an axial direction and cause relative movement between the bobbin assembly and the counterweight assembly, wherein the assemblies (354, 355) are further constructed and arranged such that: (i) at least two radial air gaps (472a, 472b) are located between the bobbin assembly and the counterweight assembly, (ii) the radial air gaps (472a, 472b) extend in a plane normal to the direction of relative movement between the bobbin assembly and the counterweight assembly, (iii) the static magnetic flux (580, 584) flows through the radial air gaps (472a, 472b), and (iv) no substantial amount of the dynamic magnetic flux flows through the radial air gaps (472a, 472b) during operation of the bone conduction device (100, 200), (i) at least two radial air gaps (472a, 472b) are located between the bobbin assembly and the counterweight assembly, (ii) the radial air gaps (472a, 472b) extend in a plane normal to the direction of relative movement between the bobbin assembly and the counterweight assembly, (iii) the static magnetic flux (580, 584) flows through the radial air gaps (472a, 472b), and (iv) no substantial amount of the dynamic magnetic flux flows through the radial air gaps (472a, 472b) during operation of the bone conduction device (100, 200), wherein the assemblies (354, 355) are constructed and arranged such that the static magnetic flux (580, 584) flows through the bobbin and counterweight assemblies (354, 355) via the radial air gaps (472a, 472b) and the axial air gaps (470a, 470b).