Ok... so basically I'm trying to escape from amp simulator world. I have a Laney Pro-Tube 30w and a Marshall JCM900-SLX 50w that I'd really like to use for recording with and I figure that getting a loadbox to use with the impulses I have will give me a way to get better sounds from my recordings. I've never used one of these things before so could use some advice. I'd like something able to handle a pretty comprehensive range of power ratings as I'll probably get new valve amps in the near future. I don't really care about having a speaker output, volume control or whatever but a DI out would obviously be useful so I can run it straight through my interface and into an impulse without having to take a line out of the effects loop or whatever. The main thing I'm not familiar with is how reactive vs. resistive fits into this context. I don't want my gear getting damaged for sure and I've read that reactive loads are more suited to valve amps. Does a reactive load offer that significant an advantage and can anybody recommend some products that fit the criteria mentioned above and don't cost £££££££? Thanks.