Hi Guys, As Beetle mentioned, I have a system for identifying cabinet misbehavior that permits real-time experimentation and amelioration. I use Chladni Patterns in my acoustic guitar design, I love the method, and will summarize here as applied to enclosures. On each panel in sequence, sprinkle glitter (etc), drive the cabinet with variable sine wave, stop when glitter bounces. The physical resonance patterns are mapped via glitter bouncing off the moving anti-nodal areas and accumulating in the still nodes. A seismic map! Take a photo. Increase signal frequency and repeat. Do all the panels.
One neat part is that correlations are easy to make on all panels, allowing a 3-D visualization and suggesting direct intervention strategies. This method is low-tech and enormously informative.
I have identified some modes on my CS2 2s, which are easily addressed. We can quiet down all the cabinets.
On other fronts, good progress is being made. Parts are on order for Beetle's 2.4SEs and my PowerPoint 1.2s.