Rockville VOL70100 100 Watt 70v Black Wall Volume Control Zone Controller Box

Delivery time good

Straight- forward instructions, well- built. Functions as advertised. My use was to reduce the volume of 70v ceiling speakers in the restrooms of a restaurant. The speakers were not on their own zone, so the volume to the dining room was also the volume to the small quiet bathrooms. Way too loud, with the speakers set to their lowest tap setting of 7.5v. Putting this controller in the run from the amp to the bathrooms was the answer. Running it at the 6th detent, out of 10. My only request would be to make the position indicator dent on the knob easier to see. It's effectively invisible in a dimly-lit environment.

so the concept here is great but functionally this thing is garbage. The volume levels of the different points is way off. So first of all it’s not an adjustable volume knob like you would expect, it’s preset volume points that you click through. Common sense says each level should increase equally but you would be wrong. There is only a minor difference between all but the top level. The top level is like 1000% louder than all the other levels. Definitely wouldn’t buy again.