I've had a pair of Quicksilver Mid Mono amps for about three years and have had them paired with several speakers . With Revel M106 at 87 dB sens they sounded great with 40 watts at moderate levels but crank it up and they lost their composure fast. Same speakers with a McCormack DNA 125 and they would play loud without strain.
Klipsch Heresy III with 40 watts is amazing, dynamic and effortless at all volumes. I have used them with a B&K 2140 and they sounded ok, but no contest to how the first few watts of EL34 goodness sounds.
Klipsch Heresy III with 40 watts is amazing, dynamic and effortless at all volumes. I have used them with a B&K 2140 and they sounded ok, but no contest to how the first few watts of EL34 goodness sounds.