I have a Mesa Boogie Dual Rectifier Solo Head (three times fast). How should I set it up to record direct, without the speaker sound? I want to record late at night and reamp when I can make some noise. I know you shouldn't use it without a load on the speaker output (I almost blew it up while accidently trying it, but it's ok now). So should I solder 4 ohm resistors in series and wire them to half a guitar cable in a loop? I can use the jack labelled "Slave Out - to Power Amp In" on my head for the direct box, so all I want to do is eliminate the speakers from the amp. Is this the correct way?