More Computing, electronics and HiFi links:Nus and Volts. Electronics projects and tips
A HiFi page with service and user manuals. Login not required.
Hifiengine. A HiFi page with service and user manuals. Requires login.
Online loudspeaker filter calculator
Qspeakers. Online loudspeaker design software
Online Loudspeaker Enclosure Calculation
Bass Reflex loudspeaker Calculator
Vented loudspeaker Calculator according to W.J.J. Hoge
Sengpielaudio. Room online sound resonance calculator
Amroc room sound resonance calculator
Claredot room sound resonance calculator
Remi's good looking site on historical 80's computers
Dansk Datahistorisk Forening (in Danish)