I have a Peavey Delta Blues 115 which runs 16 ohm speaker. The ext. speaker jack is also designed for 16 ohm cabinet. I only have a 110/8 ohm cabinet. My question is this. Can I add a resistor to make it act like a 16 ohm cabinet? I never run it at high volume so I'm not too worried about adding as is, but I realize it's not ideal. The transformers are never really being pushed.