These for sure look like they will overpower the so-called popular cube speakers -- and use to sell/list for $199 a pair -- you can even get 2 pairs for $99 ---- can be mounted horizontal or vertical --- range is stated to be 70 hz to 1700 khz https://www.ebay.com/itm/223056958368?ViewItem=&item=223056958368 https://www.ebay.com/itm/TWO-PAIR-Peachtree-Audio-mB3-Speakers-Stands-NEW-TWO-PAIR-/322871340276?hash=item4b2ca1acf4