First I pulled the horns out and damped them with Dynamat xtreme. It made a difference and was worth the money. I think I paid $50 for 4 sheets but only used 2 that were 3 square feet each (plenty left over to damp my turntable). Then we pulled out the crossovers. I used a Russian PIO for the 4 mfd, didn't particularly care what I used for the 10.5. I replaced the 3.5mh inductors with ones from PartsExpress. On the advice of Zilch at the Lansing Heritage site I used an air gapped one for the high frequencies and an iron core for the low. Instead of replacing the pot and resistor with better ones, also on the advice of Zilch, I used a 16 ohm L-pad to replace them both. Anyway, to say I was pleased with the results would be an understatement. And it was nice to have Grainger there who also seemed to be fairly stunned at how well things turned out as well. I didn't think there was as much room for improvement as what I got. Two concerns, I have only listened a few hours since, so you never know what I may come to feel in a month or so. Second, some concern as to what the real value of the stock inductors is. Also, keep in mind that some have said that you should replace the crossover with a model 19 crossover. No idea, just mention it as something you could read up on.
Oh yea, I also replaced the fiberglass insulation with some acoustic eggshell stuff also from PartsExpress. What difference that made I couldn't say because we did it at the same time as the crossovers.
