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RE: Cathode bypass cap removed and I like it

Yes, Dave, I am still using the Quad 63s. The reason why I like the sound better without the cap is because of the transparency and faster transients. The overall frequency sounds very even and rich. I listen 95% of the time to chamber music and solo violin/cello. So, richness and tonal purity is important.

Over the past couple of months I have tried the following cathode bypass capacitors:

50uF ASC Oiler
175uF ClarityCap TC
65uF ClarityCap TC
10uF Russian PIO K75
I even tried to bypass these caps with a 0.47 Russian PIO and Jupiter Condenser Copper Foil. The bypassing certainly helped (at least to my ears).

All of these caps imparted its own signature sound, depending upon the listeners one might like a given cap better than the other, but there was no real standout winner. Thus, why I removed the cap completely.

Also, the previous hum in my amp is nearly gone without the bypass cap. Another side benefit.

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