SB Combo w/ extension Cabs / Impedence

[soundbee]

Hi

So, I'm really digging my new SmallBox! ...and have a couple of extension cabs that I could use with it. Just wonder if I keep the internal speaker connected (16 Ohms) what settings should I use for the following:

a) Friedman PT 1x12 (16 Ohms)
- I think this would be the 8 Ohm setting

b) Marshall HW 2x12 (8 Ohms)
- I understand correctly this would calculate out to around 10-11 Ohms

Is there any component danger involved with the 3 speaker setup (transformers, etc...)?

Thanks in advance!
- kevin

 

[RACKSYSTEMS]

I would set both at 8 ohms.