Something to consider before you buy a preamp are the specs of the pre in relation to the amp. The output impedance of the preamp must be in a range that matches the input impedance of the amp (Parasound is 33 kohms). This amp will match well with any SS preamp, but many tube pre outputs will be higher than SS.
It's important to check the specs of the preamp. One more thing to remember.
It's important to check the specs of the preamp. One more thing to remember.