Hamburg City,
Speaking of my own experience, I have a deep respect for the 402...I much prefer it to the 300-watt version. I prefer my Gryphon Antileon to both, and find it mates better to my ear in my system which is CJ Act 2 and SF Strads with Zanden DAC. I find the 402 to have tremendous reserves, dynamic punch, and relative to many SS amps, the sound is quite well refined. However, to my ears, I found the Gryphon more refined, more relaxed/organic, more understated and more than a match in dynamics and soundstage. Again, just one person's experience. Hope that helps.