setting gains

Hey everyone, its been a while since I've been on the forum, but I've been thinking about this for a while and was wondering what others had to say. I've had my BitTen D for going on 8 or so years now, and it has been transplanted into three cars since I bought it, along with my two "ol'...

OMG my brain is about to explode, lol. no seriously though I've been reading and searching and reading some more about dummy load resistors. Im planning on buying an o-scope to set my gains I already have a dmm now all I need is dummy loads for my set up but Im so confused about these. Can I buy...