Aside from the obvious (glows beautifully in the dark), this integrated amp sounds marvelous...smooth, lush, full-bodied, and is extremely dynamic and detailed. His '94 Klipsch KG 3.2s are more than efficient enough (94dB @ 1W/1M) to be driven by this 12 watt amp, and imaging and soundstage are breathtaking. Not bad for a brand new $317 tube amp!