Gerald,
True 20 Hz bass extension is a rare and expensive commodity, especially if you aren't going to use subwoofers. Notice that I stipulated "true" - I know of fairly popular speakers that fall short of their claimed bass extension by nearly an octave.
Are you really sure that's what you need? Very few two-channel recording have content below 27 Hz because there are no common acoustic instruments other than the organ that have fundamentals below 27 Hz. Do you listen to organ music or electronica with ultradeep bass? If so, then trying to approach 20 Hz makes sense.
Anyway, my nomination would be used Gallo Ref 3 or 3.1 with the afterburner bass amp. That will get you into the lower 20's.
Duke
True 20 Hz bass extension is a rare and expensive commodity, especially if you aren't going to use subwoofers. Notice that I stipulated "true" - I know of fairly popular speakers that fall short of their claimed bass extension by nearly an octave.
Are you really sure that's what you need? Very few two-channel recording have content below 27 Hz because there are no common acoustic instruments other than the organ that have fundamentals below 27 Hz. Do you listen to organ music or electronica with ultradeep bass? If so, then trying to approach 20 Hz makes sense.
Anyway, my nomination would be used Gallo Ref 3 or 3.1 with the afterburner bass amp. That will get you into the lower 20's.
Duke