I recently decided to go with this combination, but I'm a little confused regarding Ohms/Wattage. Super beginner question, I know. Anyway here are the specs on the cab:

Speakers: 4 Celestion G12T-75
Power: 300 watts
Mono/Stereo selectable
Stereo Impedance: 8 ohm
Mono Impedance: 16/4 ohm

On the back of the Bogner, there are three outs:

B (2 outs): Connect 8 Ohm pair OR 4 Ohm single
A (1 out): 8 Ohm out (16 Ohm OK)

I understand the very basics of impedance, resistance, and wattage, but the way this should be connected is a little confusing to me -- should I connect the head's two B outs to the cab's L/R inputs set at stereo?

Lastly, will the head being 40W and the cab being 300W pose any problems? I've read that using an amp with a lower wattage than the cabinet is fine, but I just want to be sure.

Thanks for your help!
Last edited by charles? at Dec 4, 2012,
Connect the Mono impedance (4ohm) of your cab to the B 4ohm out of your amp. No problems at all with wattage.

Mesa Royal Atlantic
Marshall Class 5C
Emperor 4x12 Silver Bells
Yamaha THR10
LTD Viper 500 with Duncans