I already have a Berg EX112 (which I love even as is) that I would like to grow into a mini stack. Here are my two options and the questions on them: 1 - (the most expensive option) Get an IP112. If I do that, I get 1000W at 4 ohms and have heard great things about the combination. What are the best tube pre amps for that setup? 2 - Get either another EX112 or a HT112ER. I don't really care for tweeters in general and love the EX112 just as is, so even though the "classic" Berg mini rig is the HT112 + EX112, I can't think of any reason why I wouldn't be just as happy with EX112 + EX112..can you? So, with that, I would simply use my existing Eden WT-1000 in bridged mono for 1000W at 4 ohms and my WT-300 as the pre amp. Please feel free to comment on which of the two systems you'd op for. Think "money is no object" and then also, "money is an issue and I already have the above mentioned amps." Thanks!