Many of you recall from my post titled "AR-9 / AR-90 Crossover Re-capping Adventure" that I had a heck of time trying to find the proper combination of the attenuation resistor switches to achieve acceptable results.   People probably thought I was crazy or losing my hearing.   The culprit was the 24uF Solen MKP 400V capacitor installed inline with the Upper Mid Range (UMR.)   It was all over the place depending on program material.  It sounded anywhere from great to shrill and exhibited the unc