You have arrived at MurphyBlaster Productions, a site dedicated exclusively to the art and science of amateur loudspeaker design. Although I am an economist with no formal electrical engineering training, I have been an avid builder of speakers for over 20 years. In addition, I'm a semi-professional violinist and violist and know what live music sounds like. I currently use LAud and Praxis as my measurement software, and LSPcad for design work.
Everything on this site is free, including crossover and cabinet descriptions for several designs I have completed during the past two years. The MBOW1 is a heavily revised version of my popular SPCA Special. (The two canine woofers you see here thank all past purchasers of the SPCA Special kit, which generated over $500 in contributions to the SPCA.) Although I have long since sold out of that kit, I have developed a superior version that mates the excellent Hiquphon OW1 tweeter with the GR Research M130 woofer using true 2nd order acoustic slopes. Want a little more bass? I have provided plans for a version using the Seas CA15 midwoofer (the "CAOW1"). I list a source for finished cabinets that will work with either woofer. You will also find a 3-way version of the MBOW1, which incorporates a 10" Peerless woofer in a modular design. And there are crossovers for a number of other woofer-tweeter combinations. Finally, there
are measurements of several classic and current commercial speakers, such as the Acoustic Research AR3a, the NHT Super One, the JMLab Mezzo Utopia, and Tannoy Westminster.