A low frequency transducer arrangement comprising: a pole piece; a substantially cylindrical structure surrounding the pole piece, the pole piece and the substantially cylindrical structure defining a substantially cylindrical air gap therebetween, two opposite ends of the air gap both being open to air flow therethrough and separated from each other in an axial direction, a first magnet being disposed in either the pole piece or the substantially cylindrical structure, a second magnet being separated in the axial direction from the first magnet by a middle magnetic gap, the second magnet being disposed in either the pole piece or the substantially cylindrical structure, the first and second magnets (436; 437) providing flux in a same direction in the middle magnetic gap, a top magnetic gap being disposed axially adjacent the first magnet and opposite the middle magnetic gap, a bottom magnetic gap being disposed axially adjacent the second magnet and opposite the middle magnetic gap; and a voice coil at least partially disposed in the air gap and configured to operate in the middle magnetic gap; characterized in that two opposite ends of the air gap both being open to air flow therethrough and separated from each other in an axial direction; and the first magnet is disposed in the substantially cylindrical structure and the second magnet is disposed in the pole piece, the pole piece including a plurality of laterally-oriented air passageways at a substantially same vertical level as the first magnet, the substantially cylindrical structure including a plurality of laterally-oriented air passageways at a substantially same vertical level as the second magnet. a pole piece; a substantially cylindrical structure surrounding the pole piece, the pole piece and the substantially cylindrical structure defining a substantially cylindrical air gap therebetween, two opposite ends of the air gap both being open to air flow therethrough and separated from each other in an axial direction, a first magnet being disposed in either the pole piece or the substantially cylindrical structure, a second magnet being separated in the axial direction from the first magnet by a middle magnetic gap, the second magnet being disposed in either the pole piece or the substantially cylindrical structure, the first and second magnets (436; 437) providing flux in a same direction in the middle magnetic gap, a top magnetic gap being disposed axially adjacent the first magnet and opposite the middle magnetic gap, a bottom magnetic gap being disposed axially adjacent the second magnet and opposite the middle magnetic gap; and a voice coil at least partially disposed in the air gap and configured to operate in the middle magnetic gap; characterized in that two opposite ends of the air gap both being open to air flow therethrough and separated from each other in an axial direction; and the first magnet is disposed in the substantially cylindrical structure and the second magnet is disposed in the pole piece, the pole piece including a plurality of laterally-oriented air passageways at a substantially same vertical level as the first magnet, the substantially cylindrical structure including a plurality of laterally-oriented air passageways at a substantially same vertical level as the second magnet.