I've had a lot of physics explained to me over the past 2 days, one of them being, you only need a 100 watt amp to drive a 500 watt speaker however, my cube as it turn out is only 28watt RMS, meaning it's not actually 100watt, it's just a really efficiant 30watt amp. If i were to want to use the 1000watt behringer cab without blowing it up or using it inefficiantly i would need a 200watt amp, behringers ultrabass head is 409 watt RMS meaning your stack would need to be a minimum of 2020watts combined to be running, this is apparently because of the safety room required to avoid blowing up valuable equipment, the reviews are mixed, but can i trust them anyway? i don't know what people have tried them with, if they were using the correct impedance or too powerfull an amp for their stack at full volume constantly. was the rig up a against the wall and unable to get enough air to areas that required it for cooling? was the room very very dusty? I've decided that i'm going to do this properly. i'm using the cube, and a 100watt amp then i'm going to get a new 500watt amp, why not second hand? simply because i want to try everything straight from the factory and if stuff goes wrong to have a garrantee to fall back on, i'm not after appreciation of value, if i was i would buy a house (not in britian however with it's iminent price crash that all politicians are denying) this project is officially on hold untill i get some money together.