I like to hear 'good' music (see Music tips) in very good quality.
As this is not easy with a limited budget I'm engaged with loudspeaker development as a hobby (see also My background).
Besides tips & tricks for loudspeaker development that turned out during the years I also provide self-written software for loudspeaker measurement and calculation (see Download) that support me during development. For each level of knowledge there is something for you: