by 20to20 » Sun Jun 02, 2013 9:52 am
I think the goal is to make something that is small, ...bigger.
If the power transformer doesn't provide the requested (power to the outputs) because the driver signal is too big for its rating, then no amount of added filtering is going to improve the quality of the output signal. The transformer is underrated and can't provide the power, period.
If the power transformer can supply all the needs because it is rated large enough, then if adding more first filter capacity improves the sound quality, that indicates that there wasn't enough filtering there in the original design. Sound quality improvement defined by how much closer the output wave form shape is to the original input wave form. If your drive signal asks for more power than the filter can supply, then you need more filter, or less input. No mystery.
If you ask the rectifier to carry more current than it is rated for (capable of providing), then your output wave form will suffer. No amount of added filtering will compenste for that either.
Each amp's qualities are a case by case situation. If the small thing we want larger looks like crap, it's because the power supply design was lacking in the first place.
Saying that any particular rectifier sounds better than any other, is just more phoolery that doesn't keep the bigger picture in proper perspective.
20
Headed for Tishomingo to sing in a can...