3XO is an older model with somewhat higher efficiency than most OHM Walshes.
With a 80X+ high current SS amp or better, bass extension should be very good in the price range these typically go for used, near full range class, better than most any monitor type speaker.
Overall sound refinement may not be quite up to snuff with the better modern speaker designs, including OHMs, but 3XO should offer good value overall used and a different kind of sound from most box designs that most either take to for good or not.
With a 80X+ high current SS amp or better, bass extension should be very good in the price range these typically go for used, near full range class, better than most any monitor type speaker.
Overall sound refinement may not be quite up to snuff with the better modern speaker designs, including OHMs, but 3XO should offer good value overall used and a different kind of sound from most box designs that most either take to for good or not.