Hi all, I have an SVT 2 Pro on hold for a trade-in on my Mesa head, and when I went to try it the salesman asked if I'd like to hook my cab up to it. I said I didn't think I could because the 2x15 is an 8 ohm cab. He said that as long as the impedance switch was set to 4 ohms it would be ok because you can run DOWN TO 4 ohms with the switch set to 4 ohms. I thought I had heard differently...anyhoo Is this ok to do? or not? I did hook it up and all and it did sound like the amp of gods and titans. Will prolonged use like this shorten tube life or hurt something more in the head over time?? I hope it's ok, this amp sounded soooo much better than my Mesa...and was soooo much heavier :scowl: Thanks in advance people!!