ABSTRACT
This chapter provides a description of objective tests and examines the subjective views of close-field monitoring. In 1998, Dr Keith Holland began a series of loudspeaker tests, carried out at the Institute of Sound and Vibration Research (ISVR), for the magazine Studio Sound. His format can be followed here in order to present a series of objective measurements in a logical and consistent manner. In the stereo reproduction of music, spaciousness is a highly valued attribute, yet no unit of measurement exists for its quantification. The chapter presents the on-axis pressure amplitude responses and the distortion components up to the fifth harmonic. The harmonic distortion was measured by feeding the loudspeaker with a swept sine wave input. Despite all the money involved in the music, hi-fi and recording worlds, an absolutely extraordinarily small amount is spent on subjective/objective correlation. This is a sad reflection on how the professional industries have been usurped by the business people.
