1. A method for identifying an output transducer of a hearing instrument, the method comprising: applying a pseudo-random signal to the output transducer; receiving a response signal indicative of the impedance of the output transducer; computing a cross-correlation of the response signal and the pseudo-random signal; computing a Fourier transform of the computed cross-correlation; comparing the computed Fourier transform with one or more reference models; and identifying the output transducer based on the comparison.