An audio transducer (A100) comprising: a diaphragm (A101); a transducer base structure (A102); a diaphragm suspension system (A107a, A107b) configured to rotatably mount the diaphragm (A101) relative to the transducer base structure (A102) to enable rotation of the diaphragm (A101) relative to the transducer base structure (A102) and having a first axis of rotation (A103) associated therewith, a transducing mechanism (A205, A106) operatively coupled to the diaphragm (A101) and configured to impart mechanical force(s) on, or exhibit mechanical force(s) from, the diaphragm (A101) during operation to transduce between audio signals and rotation of the diaphragm (A101); wherein the diaphragm (A101) comprises a single diaphragm body (A207) extending radially along a radial axis (A211a) from the first axis of rotation (A103); and characterised in that the diaphragm suspension system (A107a, A107b) is located such that the first axis of rotation (A103) is substantially contained in a first imaginary plane (A213) that: substantially contains a node axis (A104) associated with the diaphragm (A101), and is substantially perpendicular to a second imaginary plane (A211) containing the radial axis (A211a) of the diaphragm body (A207); the node axis (A104) being a second axis of rotation about which the diaphragm (A101) would rotate relative to the transducer base structure (A102) if: the diaphragm (A101) is effectively substantially unsupported by the diaphragm suspension system (A107a, A107b), and the diaphragm (A101) is subjected to the mechanical force(s) associated with the transducing mechanism (A205, A106), in-use. a diaphragm (A101); a transducer base structure (A102); a diaphragm suspension system (A107a, A107b) configured to rotatably mount the diaphragm (A101) relative to the transducer base structure (A102) to enable rotation of the diaphragm (A101) relative to the transducer base structure (A102) and having a first axis of rotation (A103) associated therewith, a transducing mechanism (A205, A106) operatively coupled to the diaphragm (A101) and configured to impart mechanical force(s) on, or exhibit mechanical force(s) from, the diaphragm (A101) during operation to transduce between audio signals and rotation of the diaphragm (A101); wherein the diaphragm (A101) comprises a single diaphragm body (A207) extending radially along a radial axis (A211a) from the first axis of rotation (A103); and characterised in that the diaphragm suspension system (A107a, A107b) is located such that the first axis of rotation (A103) is substantially contained in a first imaginary plane (A213) that: substantially contains a node axis (A104) associated with the diaphragm (A101), and is substantially perpendicular to a second imaginary plane (A211) containing the radial axis (A211a) of the diaphragm body (A207); the node axis (A104) being a second axis of rotation about which the diaphragm (A101) would rotate relative to the transducer base structure (A102) if: the diaphragm (A101) is effectively substantially unsupported by the diaphragm suspension system (A107a, A107b), and the diaphragm (A101) is subjected to the mechanical force(s) associated with the transducing mechanism (A205, A106), in-use. the diaphragm (A101) is effectively substantially unsupported by the diaphragm suspension system (A107a, A107b), and the diaphragm (A101) is subjected to the mechanical force(s) associated with the transducing mechanism (A205, A106), in-use. <EOS>