Hey, I just wanted to share with you what I got from the support. Since I did not find any Info about this I needed to ask. I want to connect 4 2x12 speaker. So I will use all 4 Speaker outputs. Each cab is wired to 8 Ohms. How do I set the Impendance 4, 8 or 16 Ohms?
And the reply was: Yes, you can use all 4 speaker outputs on the 2/90/2. You’ll need to run the amp in stereo mode and since you are connecting two 8-ohm speakers to each channel, you will need to set the impedance switches to 4 ohms for each channel. The speaker output jacks are wired in parallel so when connecting two 8-ohm speakers simultaneously, this creates a 4-ohm load.
