I'm looking for a nice small loadbox for my Torpedo CAB so I can plug in some of my tube amps. What loadbox would you recommend? Smaller the size, the better!
You will find some not so big loadbox at Palmer or SPL. There are not too expensive and should be working well. I have to say I never tried the recent models.
I use a Weber Mini-Mass (turned down to zero for load) with my CAB if I want to use my amp head instead of my preamp. The Min-Mass has a reactive load, but Weber also makes a power dump that is passive. These aren't exactly pedal size as they are probably 4 or 5 inches high and wide and probably 6 inches deep, but they aren't a rack mount size either. The Weber stuff works well and it fairly affordable so although it doesn't meet your pedal size spec they may be worth looking in to.