The Fostex FD4 is a hard disk multitracker without a hard disk. Pardon? You'll have to read on for the detail, but I'll say at the outset that the FD4 isn't weighed down with features (as some hard disk recorders are) and that Fostex seem to have struck a happy balance between features and usability in their new machine — they appear to have remembered that most potential purchasers will probably be complete novices in the recording arts.

This is a great tool for anybody who wants to minimize feedback in a live situation. Can be used in Auto Mode to identify frequencies that cause the feedback and eliminate it. Or there is a Manual Mode which allows you to dial in up to 24 frequencies and tweak the bandwidth and gain yourself.