By process of elimination, while attempting to pull in 670 am WSCR Chicago, I believe I pulled in 50,000 WWFE 670 am Miami last night (April 21 0130z). There were two OM's talking in Spanish followed by Latin music. Doing a search this morning, it is the only Spanish station on said frequency on the East Coast. The next nearest Spanish station on 670 am is in Argentina. That being the case, it is the most distant station, by 100 miles (KMOX), that I have received in my current abode. Unfortunately, I could not decipher call letters or location, maybe I'll try again tonight. The north-south reception overwhelmed the east-west reception last night.
WWFE does not have streaming on their web page so I couldn't compare audio.