140 watts are more than enough for 92db speakers
I took the plunge - PS Audio Stellar DAC and S300
I should get them tomorrow as beta test units. Current speakers are first gen. Klipsch Reference RF-3s from high school. I will be referencing the units through a Grace 905 monitor controller. I know the speakers are the weak link but I've had them for almost 20 years and I know them well and have gone through 4 amp/preamp setups. Excited to see what I notice!