Somebody here questioned the Yamaha P5000S amplifier. The link that I posted to the smaller P3500S showed that that is a perfectly neutral amplifier that measured exceptionally well. Frequency response is perfectly flat, even well above the range of human hearing, and distortion was vanishingly low, even at levels below 1 watt. I bought the 2x250 watt P2500S for my son, and I can testify that it sounds fine: completely neutral and not a tinge of hardness. The more powerful P5000S admittedly has one difference: it has a switch mode power supply to reduce weight and volume. I think that was a perfectly rational decision on the part of Yamaha. I know there are plenty of audiophiles who believe that switch mode power supplies are evil, but I am truly convinced they are just imagining things (do they have measurements to back up their claims, or controlled listening tests?). Big companies like Yamaha, with their huge engineering staffs, know what they are doing, and so do their pro audio customers.
On a more general note, I think those interested in high end audio would do well to stop worrying about electronics, and focus on what really matters: speakers and the room.
On a more general note, I think those interested in high end audio would do well to stop worrying about electronics, and focus on what really matters: speakers and the room.
