SPEAKER BOX CALCULATOR SOFTWARE SERIES

The woofer capabilities were greatly expanded over time, to the point where you could actually measure something in the nearfield and it matched the simulation! Perhaps the biggest difference: woofers roll off at the top end. LEAP was developed by Chris Strahm (RIP to a really cool guy, 2016 ) and it was to my knowledge the first really available thing that could take in actual measured frequency, phase, and complex impedance data and let you accurately calculate crossover response-and closer simulations of woofers in boxes. Deviations of several hertz or a couple of decibels or 0.1 of Q are simply not within the limits of such simulation.Īt the other extreme, you have proprietary programs at large manufacturers like JBL, KEF, etc, and LEAP. Use these programs all you like, understanding that you should NOT use them to obsess over small changes in box volume or response (like I did back in the day before I knew better! ). Another difficulty is that IIRC Dick Small approximated the high frequency impedance rise as and inductance 'Le' however it is more like a semi-inductance. One difficulty is that different measurement methods will give you different numbers for those parameters.and the parameters change depending on the volume level. This is way better than nothing, but should be understood as an approximation, real speakers do NOT match those predictions. There are various programs that take those parameters and predict frequency response by calculating electrical filters. Richard Small came along and in his voluminous thesis (my copy is literally 3' thick) made the correlation from physical speaker parts and measurements to filters friendlier and more explicit.

SPEAKER BOX CALCULATOR SOFTWARE SERIES

Here's the deal: long ago when the dinosaurs roamed the Earth, a fellow named Neville Thiele realized that you could model a speaker like an electrical filter, publishing about this in a series of extremely mathematical articles in Amalgamated Wireless Australia.

Click to expand.Ah, but you may get what you pay for.

Speaker box calculator software