In general there is a dimishing value of returns. to almost any pursuit of perfection.
I was one of the only ones on the emotiva xpr 2 thread, that actually owned an xpr 2. Everyone liked to call it overengineering and a waste of money. Fact is well built amplifiers such as this one and many others, are not just a good amplifier for audio perfection, but in my case. the value actually near doubled from new. While most waste their money on junk, and never see a return from their audio purchases, I have managed to build a system, that has paid me more than it cost in the long run.
I continue to own many high fidelity amplifiers from Yamaha, that not only keep working.......... but 35 years later sell for more than they charged in 1985. Cheap buyers of course , get more experience, listening to 5 to 10 junk amplifiers in the same time frame.
In general power supplies of amplifiers all have a PSRR. And larger supplies with less ripple, will provide a much better output signal. Many different designs result in many different aspects of amplifers, that do in fact alter the output signal. This is most evident in varying 3 db down points on the low and high frequency, differing ripple from power supplys with more or less reserve capacitance, as well as proper application of design to avoid noise. A perfect amplifier will simply amplify the input signal and output the same signal exactly................... except that this is a dream world............ and most cheap amplifiers simply do not have the design specifications to accomplish this task.
It certainly is a nice benefit when the audio track stops , while listening to anywhere up to 120 db audio,,,,,,, and hear absolute nothingness, until the next track starts. Further, because most amplifiers are underpowered,,,,,,, they lack the ability to reproduce the dynamic range accordingly, making the music less dramatic, and giving it a lifeless sense. One could go on forever........., The reality is cheap buy cheap, and claim it is high fidelity.
AVSCIENCE.COM. topic = 459.60
A Good amplifier requires a adequate power supply, It does not matter what the amplifier is capable of if the power supply will not provide the power required. Most amplifiers have under rated power supplies. It is up to you to make sure you get the ones that are least under rated if at all.
Last edited by johnplayerson; 06-08-2020 at 10:43 PM.