I was discussing some of my recent vintage amp pickups the other day with someone and we got to talking about WPC ratings. This person's position was that the older amps that only put out 20-25 wpc damage speakers because of their low output. It is my contention that might be true if I were not using them to power older speakers from roughly the same era because those speakers were designed at a time where 20-25 wpc was the norm. He countered that the older speakers may have been more efficient but that drivers are drivers and even vintage speakers benefit from more power. He stated that all things being equal an amp with 50-60 wpc will produce better sound than an amp with 20-25 wpc driving the same speakers assuming that they are both maintain their power levels. Any thoughts??