Your speaker requires 5 VPU (Valcom Power Units) to operate properly

I just double checked the Valcom catalog. In one place it lists N/A for power units of the 624B and in another it lists 12 power units. We normally only use a 624B for talk battery, not driving horns. You mileage my vary, but it sounds like your 624B is barely limping along.


Sometimes the thoughts in my head get so bored, they go for a stroll through my mouth. This is rarely a good thing.