I assume that your source has enough output to directly drive your amplifier. If your source has the ability to control it's output level why not scrap the passive preamp and go directly to the power amp. You will eliminate any unwanted coloration or noise and certainly save yourself a few dollars. After all, a passive preamp is only an attenuator.
Best Sounding Passive Preamp
What is the best sounding inexpensive passive preamp? I may have to send my preamp in for repair which could take a while and I don't want to be without music. My top priority is sound, but I don't want to spent a lot of money as I will be putting my preamp back in system upon return. Help please.