Im recording a demo with a Jackson V with EMG 85 active pickup at the bridge, a Mesa Boogie Roadking through the 1st Channel in FAT Mode and using a Boss Metalzone, and recording it to a Tascam 424 MK3. I keep getting this high hiss on all my tapes that wont seem to go away no matter how much i eq it. The DBX seems to help but i would rather eliminate this high end monster from the source. Any suggestions????