If you are thinking about single-driver loudspeaker, requiring little power with (no crossover, amplifier connects directly to driver), here is a PAIR for sale. See the review from 6 moons //www.6moons.com/audioreviews/zigmahornet/zigmahornet.html
The write up is very accurate. They are absolutely transparent and revealing of upstream gear. Will pair well with a good analog front end, or digital that leans organic. A very pure flea-watt amp (Decware or Bottlehead tubed) or good class A SS would be ideal. 5w is plenty in a reasonable room. If you are concerned about replacements, the Merrill DCA4 drivers are still available at diyparadise.com. Cabinet dimensions are 60" X 4 3/4" X 4".
If you check out the 6 Moons review, these are the same, but much nicer cabinetry as you can see from the picture. They are very protectively packed in a custom made box and ready to go. $520 for the pair. The cost of the box and shipping to a buyer in the 48 contiguous U.S. States is $115 for the pair, so $635 complete. I pay my PayPal fee. Amazingly musical pair of speakers for the $ investment. Thanks for looking! Local Pickup OKAY.