In the $500 range the black cube is the way to go. There is a deluxe on eBay for less than $500 right now. the other preamps will give you a taste and some promise to move forward the black cube will get you there at under $500. It may be all the preamp you will need moving forward the others give a taste and entre into "what do I buy to replace this preamp". So, do yourself a favor and buy right the first time.