48. David Hafler DH-110 Preamplifier from 1985.

I just got this preamp and hooked it up to my rebuilt and modified Dynaco ST-70 (also designed by David Hafler). Available as a kit, it was and continues to be popular due to it's upgradability and quality. It may be the best preamp available for under $200 in the used market today. I think it retailed for about $450, Anyway, I am very please! I can't wait to upgrade the phono section. It is now in my main rig. Here's a picture: