The NXT technology based sound panels use a small coil driven exciter fixed to the panel to bend the surface which creates the sound waves. The much acclaimed ‘SurfaceSound’  and SoundVu now commercially developed creates a loudspeaker with impressive fidelity.

Refining the system parameters by optimising the magnetic path and its interaction with the current carrying coil has been achieved using OPERA simulation software from Vector Fields of Kidlington, Oxford. This enables the designer to maximise drive forces, and minimise flux losses using minimal magnetic material, thus reducing production costs.

The software, in which models can be built up from geometric modules, provides flux density patterns and predicts electrical parameters, from which it also derives current, power and overall performance. Predicted results have an impressive record of correlation with measured component performance. Having proved successful on panels using just one exciter, OPERA simulation has been used where up to six exciters generate quite complex patterns.

NXT speakers not only perform well but occupy much less room than conventional speakers, typically less than 1 inch in depth and the technology requires fewer component parts than conventional pistonic speakers with the associated benefits of reduced costs. NXT continue to develop the technology offering licence to audio equipment manufacturers. Vector Fields simulation software is also advancing, with regular up-dates from the wish-lists of user-group companies such as NXT .

NXT technology can be found on www.nxtsound.com or from NXT at Cygnet House, Hinchingbrooke Business Park, Huntingdon, Cambs. PE29 6FW 0480 846 100 Fax. 01480 846 190