Thanks for the responses. I had read in the owners manual that Mesa's aren't very sensitive to mismatching the ohms and they actually encourage trying it for different tones. I just wanted to hear from users that had tried it. Thanks again.
Would it be a problem to run one 8ohm cab and one 16ohm cab at the same time on my Heartbreaker head? The Heartbreaker has one 16ohm speaker jack, two 8ohms and two 4ohms. Of course I would plug the 16ohm cab into the single 16ohm jack and the 8 ohm cab into one of the 8ohm jacks. Will that...