POD 2.0 - Piezo Recording

[SoutherlyBuster]

I have an old POD 2.0 bought circa year 2000 which was purchased for recording on my electric guitar (magnetic coil pickups). Doing some research for when I get my self an electric violin which will have a passive piezo pickup. I understand that compared to the magnetic coil pick-ups which act as a low pass filter, for piezo pick-ups the capacitance adds a high pass filter creating a band-pass filter. So now the question is whether my POD 2.0 will be suitable for passive piezo pickup gear for violin, could not see any thing in the manual mentioning piezo pickups. I also have an acoustic guitar and blues harp which could be connected to a separate passive piezo pickup. For the violin do not want to loose the lower frequencies, the lowest string is G at 196 Hz. Also want to ensure the signal is not weak requiring the POD Output Level to be turned all the way up, leaving little room for adjustment. The outputs from the POD would either go to ear phones or the stereo line in on my iMac. Or is a Pre-Amp needed for the piezo before connecting to the POD, see that there are a number of Pre-amps available from other manufactures that specifically say they are for piezo pickups and violins.