| Home | Hifi speakers | Pro speakers | Library | Designer's notebook | Sales | FAQ | About us | User group | Designer's notebook Overview Personal notes Introduction Although loudspeakers look simple - and of course, in essence they are - the Harbeth-standard of performance requires meticulous attention to detail right through the design. Having a clear, documented design trail enables each generation of Harbeths to build on the engineering of previous generations and projects can be re-visited in the future when technology advances. In these sections I'm attempting to convey important milestones in the development and evaluation process in the hope that they are both thought provoking and accessible. In particular, if you are interested in the reason why loudspeakers have characters (or as speaker people say, 'colourations') please take a careful look at Chapter 7. Chapters and content overview In this section we can take an overview of the decision tree facing the designer when contemplating a new model. Impedance compensation and correction circuits in crossover design. Some notes from a very early log-book. Interpreting frequency response curves and how easily you can be fooled. The unique Harbeth RADIAL™ cone project - from polypropylene to the new material. RADIAL gives the cleaners clearest tone colours which is 'the Harbeth sound'. The four key functions of the "crossover network" inside a Harbeth cabinet. Surprising how many functions are simultaneously enacted by the crossover? How to measure the frequency response of a speaker - without a chamber? (Under development: this section not yet written)   Listening to loudspeakers. This chapter is of critical importance. It explains what characteristics to listen out for in a loudspeaker, and why so many modern speakers are fatiguing. Comprehensive 3D pictograms explain this visually. Coming soon...   Coming soon...       Harbeth Audio Ltd., 3 Enterprise Park, Lindfield, Haywards Heath, W. Sussex, RH16 2LH, UK This entire website is Copyright © 2007 HAL, England. All rights reserved. HARBETH is a Trade Mark/Registered Trade Mark. Site designed by Moose Web Design.