Sonance 260X3, this is one of the best values in amplifiers. This has been my back up amp for years. 2 ohm stable, can power three sets of speakers and has speaker selector switch for all three. Excellent second zone amp and built like a tank. Great sounding amp, I am only selling due to me having a pair of Elan D401 amplifiers. A steal at $75, hands down the best watt per dollar you are going to find. I have used this amp with $2000 preamps and ipods both with good results. Thank you for looking, Nick