A thought just occured to me. If you are using Sound Forge XP or GoldWave for editing, you can filter out the hiss using either program. This may eliminate your problem.
Good Luck,
Gary
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PSR-S950, TC Helicon Harmony-M, Digitech VR, Samson Q7, Sennheiser E855, Custom Console, and lots of other silly stuff!
K+E=W (Knowledge Plus Experience = Wisdom.)