Hey guys! I'm looking for a good/great preamp to suit my vocals well. In another thread a lot of guys preferred I get a dynamic mic instead of a condenser due to the type of vocals I record; rap. I'm currently looking at the Focusrite ISA One which is about $499.99. Mics that were suggested are: Shure Beta 58A & Sennheiser e835 (plan on getting both). Would this preamp work well with the two? If not? What do you suggest? Whether lower in price or slightly higher?