jafant, they are actually the 20/20's. The upgraded Pearls. These have the Graphene Mid-Range, and he tweaked the Crossover. I think these speakers will compete with others that are twice or more the price. They do everything right! I'm pushing them with Gryphon Mephisto, Gryphon Pandora Pre, Emm Labs DV2 Dac and NS1 Streamer, all Cardas Cabling, Furutech Power Cables, all Dedicated Furutech NFC Circuits/outlets. (rhodium) I have a Pair of Rel Carbon Specials on the way. I have a few more tweaks in the future, any major future changes would be (if I completely loose it) sell my Mephisto Stereo and go with the Solo's! If I didn't have such a huge room I wouldn't even consider doing it. 30 X 26 X 26H. This Mephisto Stereo with the Pandora is a beautiful thing! Slam, detail, grip, and a whole lot more. The Mephisto will be 1 year old in November. World Class Amp.