And their drivers, although they are 6ohms nominal whereas the original Vifa drivers are 8ohms. You can also buy replacement foam surrounds from Audio Note too when the originals wear out. I had exchanged a few emails with Peter Qvortrup when I was deciding on what direction to go, but decided to replace the woofers with OEM parts from Atomic Hifi. Replacing the tweeters was more challenging but was able to get some assistance with OEM diaphragms from a gentleman I met on Audiokarma. Some say you shouldn't touch a Snell crossover as they were factory matched, but the electrolytics in the crossovers had drifted very, very far off of spec in thirty years. Also I found I had two different tweeter models and the HF response was way out of balance in the two speakers, so I threw the crossover matching out the window LOL. This pair was made in 1992 I believe, the last year of manufacture of the J/II, this was the last iteration of the Snell J to be overseen by Snell himself before his death in 1984. I measured all of the components and matched them to the best of my ability.
Here is one of the crossovers. I used film caps, Mills MRA wirewounds. The speakers sound great!