I have a 2 Channel H head and 16 ohm 1x12 cab and i just picked up another vcab but its 8 ohm where do I set the impedence
8 ohm or 4 ohm when using both cabs?
You are going to have different amount of power being sent to the 2 different cabs. EM7 has explained this in detail on both this and the VR forum...I'd do a search for his posts.
When you mix an 8ohm cab and 16ohm cab, the actual Impediance Load would be 5.3 Ohms. so if you had to do that i would set the switch to 4 Ohms... the best thing to do is try to swap your 8ohm speaker to someone who has a 16ohm version...
what type of speaker is it?
Guitars: 1994 PRS Artist II; 1995 PRS Custom (24); 1997 PRS Santana I, PRS Custom 24 Custom Zebra Stripes, 2009 25th McCarty NF, 2013 PRS HBII
Amps: PRS Original Sewell 50 watt #43 with Paisley 2x12 cab; PRS Pre-Prod 2 Channel C with 2x12 DB Cabinet, PRS Custom 10 watt Combo