I've had a look at the porta 02 manual. A couple of questions - is the hiss there when you're listening to a tape playing or when you're recording (or monitoring the inputs without actually recording). If it's when you're playing a tape, does it stop when you stop the tape? If it's on record, does it reduce when you turn the trim controls to the left, away from mic toward line. If you connect the powered monitor to the line out, is the hiss still there? Sorry for the detailed questions. I'm sure this will get to the bottom of the problem. (The inputs are dual purpose mic/line inputs suitable for high impedance microphones (50Kohm input impedance) or instruments. Mitch
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