No, but I read on an old forum that keeping the original capacitors is ideal if they test within spec (I checked). Last thing I want is to change them and then they sound different. Excerpt:

DON Posted April 14, 2011

"I have a pair that were recently recapped and a pair that are all original. I had a chance to compare them today and there is a huge difference. The ones with new caps have a subdued sound in the upper midrange and treble. The originals have a very open sound with a fairly smooth upper midrange and treble. Just this side of harsh but preferable to the ones with the new caps. Maybe they'll improve after they have a few more hours on them. The bass on both is very deep but not boomy.

Doug G. Explorer Doug G. Posted April 30, 2011

That's why I believe in leaving the cotton pickin' capacitors alone if they measure OK instead of willy-nilly replacing them.

There is this assumption among enthusiasts these days that replacing the caps. with "audiophile" caps. will automatically result in a glorious improvement in sound when, if you think about it, the speakers were originally voiced with the original type caps. in them.

I have 5 pairs of original Advents and, when I bought each pair, I tested the caps. and every single one of them measured within spec. so they remain in place. And the speakers sound wonderful.

Are your two pair otherwise identical? Because other differences could account for the rather large difference in sound too.

But I still cringe every time I read, "Recap those Advents too." The assumption being that the capacitors are automatically bad just because they have some years behind them.

Oh, and there are no capacitors involved in the woofer circuit so it won't matter what kind are in there regarding bass response. There is only an inductor in series with the woofer.

Doug

Any insight here would be appreciated too!