Originally Posted by
YNWaN
CE certification for small electronics companies isn't particularly arduous. As above, self certification is quite legal and easy to do. However, that's not to say there aren't many other hidden costs.
A 'quiet' phonostage, in that it adds very little noise of its own, is an absolute must as far as I am concerned - otherwise a genuinely wide dynamic range is impossible. This is particularly difficult to achieve with MC valve stages and the primary problem I encountered when I tried one of Alan's designs.