I have had a chance to listen using Totem Model One monitors. The sp3 at low volumes is definately a steal at the $550.00 that Underwood HIFI sells them for. I have not listened to anything that will come close in that price range or even 2X the price! The Rogue Cronus is a definate step up from the Onix though. The sp3 shines on simple music, such as small string Quartets and Acoustic/folk, but when things get complicated and fast instraments start to blend and the detail isn't as precise. The Rogue stays focused, the sound stage and imaging is more like like at higher volumes and the midd to upper bass notes are tighter. When the mallet hits the kettle drums or hands make contact with the skin of a djembe, you can hear the actual contact of the two coming together. The same sounds are not present with the sp3. The sp3 just moves the air and does not have the speed of the Cronus in the lower frequencies. I would like to her others commentswho have had a chance to hear either of the two with other speakers!
Grizz