Phono Preamp Recommendations

Al,
 Since you endorse it so strongly and repeatedly, I have no doubt that the Herron phono stage is truly excellent. All I can find out about the circuit is that it is headed by a 12AX7 input tube.  That by itself is not a standout feature. So, do you have any insight into the circuit topology that would explain why it is so unique in its excellence? From the outside it looks to be just another 12AX7-based MM phono stage, of which there are dozens, old and new, but I’m sure I’m wrong.

Hi Lew,

First, to be sure it’s clear the input stage of the Herron for LOMCs is FET-based, and does not use a 12AX7 or any other tube. I believe you are correct that the MM input stage uses a 12AX7, and I assume that stage is in the signal path for LOMCs as well.

Essentially all I know about its design characteristics, though, is what is stated in the description and the manual that can be seen at the website. Among other features, undoubtedly passive RIAA equalization, absence of any feedback, use of "high quality very low dielectric absorption film type" capacitors in the signal path, "four levels of high voltage regulation," use of "hand-picked components," and internal star-grounding are significant contributors to its performance.

Fundamentally, though, I believe that the most significant contributor to its performance is simply Keith Herron’s combination of technical expertise, musical sensitivity, and dedication to excellence.

Best regards,
-- Al

Thanks, Al. Most of those other features are common to the better tube phono stages that are available for sale, so I would have to agree that the excellence of the product must owe to Keith Herron's skills and care.  Some chicken soup is just better than other chicken soup. 

I love my Audio Research PH8 - can be had for around $3500 on the used market.

Quicksilver phono stage.