Tubes for base


I have 2 amps - 1 for top end and 1 for base. I'm happy with the top end but I'm always looking for a little more base. I have a Llano Trinity amp which uses 1 tube per side at the output stage. The amp takes a variaty of tubes (too mant to list). What ya got?
ernie00
Tubes wont make a good bases.
I tried to make an amp stand from tubes- not a good base idea.
I have to agree with the subwoofer idea - and I DO hear subs, actually can hear down to 25 hz easily (high end is a different problem).

Having said that, I just replaced some Matsushita's in my Monarchy tube DAC and replaced them with Amperex (Holland) 6DJ8's. I do notice an increase in bass response, and also a slight rolloff of high frequencies. The tubes are new so that may change. My experience is that some tubes do favor bass.