hello out there, just discovered this great forum. I have a iriver ihp 120 (the old model) which records in compressed and uncompressed formats. Its not too bad considering its just an extra feature on the mp3 player. Anyways, I am about to buy these mini binaural mics. I was wondering if binaural mics require a preamp with phantom power or if i can plug them right into the line in (iriver has a special line in for mics). The binaural mini mic im considering is the 139 dollar model on soundprofessionals.com. Im not sure what they are technically called. I am looking mostly to record acoustic performances on the go (ensembles (chamber quartets etc) and acoustic guitar/vocals live. I know it will not be very good quality but it doesnt need to be. Thanks in advance.