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RE: Addendum

Posted by Lew on April 27, 2012 at 12:14:02:
When I installed the 100:1 treble transformers in my friend's U2PXs (formerly my own U2s), I inserted an 8uF film and foil polystyrene capacitor in series with it, which in conjunction with the 70-ohm impedance I measured at 300Hz (across the 100:1 transformer in isolation from the bass transformer) was intended to create a hi-pass filter at that frequency. Based on what you say, I will de-install it next time I get a chance. I was only following recommendations from Rob.