Nice story @doyle3433. I have heard an IPC horn setup, also mono, and it sounded great for sure. I can understand your enthusiasm!
Count me among the vintage fans. My speakers have horns from the late 1940s, drivers from the 50s and 60s, and crossover caps from the 50s and 60s. And my main amplifiers are a copy of a Western Electric design from the 40s. Just the system to play my 1950s jazz LPs!