All I can offer is that having read reviews comparing the ML 39 to the Wadia 830 and finding that both had their areas of superiority you would think the Wadia 301 would be better than the 39. Right, well maybe, but when I listened to the 301, and was lucky enough to hear a ML 390s, it was like chalk and cheese. In the UK, that means the difference between day and night. You decide - I already have - the ML 390s rocks!
