Here is an example with the 4-channel version of this mixer and a few other devices…
This is an eight channel resistance mixer. Eight mono inputs are combined to one mono output with a volume control for each input.
The circuit is completely passive and requires no power. It is housed in a rugged raw aluminum die cast case.
The design is quite versatile and can also be used in reverse as a 8-way splitter. Also the knobs can be pulled off and reorientated effectively moving the inputs to the back or side depending on what works best for your setup.
Shipping to the US is a flat $10, everywhere else is $22 for the first item and $8 for each additional item.
I am away right now. All orders will ship on April 28th. My apologies for the wait.