1)   TurboBass Express 5.01
All you need is a technical data sheet from the manufacturer of the mid range, woofer or sub woofer. You will only need 3 of the parameters to calculate the desired cabinet needed. Comprehensive instructions included.

 2)   WinMLS 2000 3
Perform audio, acoustical and vibrational measurements user-friendly, accurate and flexible using a sound card. WinMLS2000 is widely used by pros. Now low-cost versions allow the amateur to perform professional loudspeaker and room measurements.

 3)   Sample Champion 3.6
Powerful real-time software tool designed for high precision acoustic measurements. Impulse Response of a room measurement, loudspeaker Frequency Response analysis. Designed for acoustical technicians, sound engineers, scientists and students.