SUM7: 7-way summing mixer (3HP)
2 in stock.
A 7-channel summing mixer.
Think of it as a reverse mult - whereas a mult will take a single input and duplicate it n times, this mixer takes n inputs and sums them together at a single output.
The inputs are resistively coupled, so although it'll handle both audio signals and control voltages the output is AC coupled meaning that any DC offset in the mixed signal is removed. If this bothers you, you can remove the offending capacitor and replace it with a zero-ohm link or wire bridge.
As supplied, the mixer is set up to have unity gain (ie. what goes in, comes out) by default - there are a couple of trimpots on the board which you can fiddle with if you want to increase (or decrease) the overall gain.
3HP wide, 37mm deep (excl. power cable)