“Instead, ’Smokestack Lightnin’ was reproduced with astonishing clarity, precisely between the SP1s, as if emanating from a single speaker placed directly in front of me.” - Doug Schneider, Soundstage
"The SP1s imaged like gangbusters, rendered depth like there’s no tomorrow, and “disappeared” so completely into the soundstage that they seemed not to be there at all. The top-to-bottom sound of the drivers was as cohesive and focused as the best non-hybrid floorstanders such as KEF’s Reference 3 or Revel’s Ultima2 Salon2.