I currently have paradigm monitor 7, cc370, titans, hsu vtf2-mk2 with a kenwood vr705 receiver and was wondering if I should get a new receiver such as yamaha 1500, or whether a preamp would be better? I really know very little about preamps and how to set them up, but would be willing to get one instead of a new receiver if that is a better option! Thanks for any information you have Derek