Review on Enhance Outdoor Audio Experience with Theater Solutions OVCDG Outdoor Speaker Volume Control - Weatherproof Gray Dial Switch by Sarah Riekhof

Unbeatable price. I found the jumper setting instructions to be very clear. You simply match your amplifier's output impedance against the table, the number of speakers installed and their impedance. If you're not sure what your amp is rated for, go for 8 ohms. If you are using more than one pair I suggest you use 14 gauge speaker wire and use a junction box to connect the pairs together. With more than one pair of wires in the volume control itself, it would be very cramped. Using a separate junction box greatly simplifies the connection of many pairs. The only thing that bothers me is the lid seal. It's made of silicone, which is best for caulking, but difficult to keep in place. A small drop of spray adhesive did the trick. I highly recommend this volume control.