A40 Part Substitutions

Very impressed with the changes to the Pass Labs site. Have been a fan of Nelson since the original Class A 20 Watt .... way back when! Built a version of the A40 which is very pleasing. See attached photos. If you think these are good enough for the gallery I would be honored! Have built a 40W version of the Son Of Zen using a combination of surplus (for power supply and heat sinks) and new components. Melted the original 1500W transformer in the 50W version, so had to do a rebuild recently, finished just last weekend wink Without doubt the best amp I have ever heard! I'll send some pictures in due course. Currently looking at the balanced line stage (which is why I was back at the website and saw the changes) Cheers Mark

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