Erhard Audio vs Decware

I won't be much help with comparisons as I have both the Decware amp and preamp and love them both. The thing that might help you decide is that the current wait time for Decware amps is between 30 and 36 months. If you have read that the wait is 12 to 18 months, that report was from a year ago. Last year, I waited 18 months for my orders. If you wanted to buy something in the near term, you would need to look elsewhere.  

Have you looked at Space-Tech Laboratory in Canada?

I said the same thing years ago.  Things have changed for sure--but that does not mean you can't achieve a good outcome.  Sometimes you do well with scouring the internet for info, other times you just need to take a listen.

Wish I could give you what you are looking for.  But I can say this--picked up a mint used Erhard Ray 6L6 SE integrated.  I love this amp!  It is choked full of excellent parts.  No quirks, quiet as the grave, great output transformers.  If his preamp is anything like this little amp, you will be very happy indeed.

Ah... Bryn Mawr Stereo.