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Products from Liberty Instruments

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Liberty -praxis-

Measurement system for audio electronics, loudspeakers, transducers, and acoustics.  Easily portable between Windows-based computers for field, laboratory, and office use.

For more Information click HERE.

Free software download and manual now available!  

Often Asked Questions about Praxis 


LspCAD Std

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a powerful yet economical Windows-based loudspeaker box, crossover and room placement design/modeling package from Sweden. LspCAD can utilize measured data from LAUD as it simulates the effects of crossover circuitry and placement in the listening room.

Click here for more information and to get a FREE LspCAD demo!

LSPCAD USERS TAKE NOTE!: You can update to the latest version by going to Ingemar Johansson's web site.

Also Available: LspCAD Pro -- more features, with ability to actually audition your crossover using your PC soundcard before building!  See Ordering for a limited time deal if you buy LspCAD Pro with Praxis.

Systems, Microphones, Probes, accessories... click here for a listing of our current offerings