Hi, Has anyone here used an Ampeg VT22 for bass? Any idea what mods would be needed to make it more suited to bass? Also, if I have an old tube amp with only a speaker output (no line out), what is the best way to run that amp's sound to a mixing board? I know there are boxes out there like the THD Hotplate, but I haven't tried them and I've heard conflicting reviews. What the best box or mod for getting a line level output from (or bypassing) a speaker output? Thanks!