A few years ago I copied the following statement from these bulletin boards and saved it:
Lon,
I voiced the new EL34 Mono amps with a somewhat dry bass with the most head room possible. This works real well with rooms or speakers that are a touch bass heavy. I've been wondering all along if this is the best signature. I can remember back when I first did the Select amp, I voiced it exactly the same way and later changed it. The change gave it considerably more bass with less overall head room.
     If you want to send both amps back I'll install a bypass cap on the cathode resistor for the output tubes similar to the select. It should open things up with better depth and have plenty of bass. This would be something that you could easily remove if you didn't like it. If you like it, I would be interested to know if the tradeoff in head room was worth it in your opinion.
Thanks, Steve

I think that is what you mean.