12-29-2020, 08:40 PM
Tim, yes I'd experiment with some larger values. Remember you're not actually increasing bass but bypassing some of the highs so the lows will seem more pronounced. You're going to be limited by the size (and condition) of your speaker. I'd replace the tone control before futzing around too much with the capacitance since both will effect the tone.
John KK4ZLF
Lexington, KY
"illegitimis non carborundum"