Hey I got a Mesa DR and I'm looking for an attenuator. I've researched some liek the THD HotPlate but my question is more or less about the other ones like Weber. Is it true you need a 200w attenuator for a 100w amp? Why is that I just dont understand. Also what are some good attenuators out there that dont suck tone and can be used safely on a 100w amp. Thanks!