Rebbi,
Regarding David's comments, it isn't surprising. He may believe his carefully chosen parts yield the best sound and he may be right. Builders vary in their opinion on "upgrade" parts. He seems to suggest that aspect has been covered via listening/testing process. Speculation is all you have until you can personally listen. Mdemaio was certainly impressed and that's all we have to go by at this point. The 1000.00 cost difference(AN vs Audio Nirvana) represents established vs the new upstar factor. I get the sense David's amp "might" be more of an all out assault than the Bottlehead (only a gut feeling, nothing more).
Regarding David's comments, it isn't surprising. He may believe his carefully chosen parts yield the best sound and he may be right. Builders vary in their opinion on "upgrade" parts. He seems to suggest that aspect has been covered via listening/testing process. Speculation is all you have until you can personally listen. Mdemaio was certainly impressed and that's all we have to go by at this point. The 1000.00 cost difference(AN vs Audio Nirvana) represents established vs the new upstar factor. I get the sense David's amp "might" be more of an all out assault than the Bottlehead (only a gut feeling, nothing more).