Wayne Parham Messages: 18783 Registered: January 2001
Illuminati (33rd Degree)
The Pi Alignment Theory describes a method for determining motor cabinet volume and tuning for any woofer. The cabinets it suggests are very similar to Davies' 1981 implementation of Thiele/Small analysis, so this is like asking whether there are some drivers that are more suitable to Thiele/Small analysis than others. In fact, the tuning could be said to be in exact agreement because Pi alignments place it at 0.375Fts/Qts and Davies' is 0.37Fts/Qts. Not much difference. This is an example of two very different methodologies providing two very similar results and it tends to confirm both.
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