The Digitech Drop is a polyphonic pitch shifter that can drop your guitar’s tuning from 1 semi-tone (eg: E down to Eb) all the way to a full octave.
It’s a simple feature and while there have been many polyphonic pitch shifters over the years, there’s a reason the Drop has built up such a wide acceptance since it was released: it does the job extremely well.
Of course Digitech has had plenty of experience with pitch shifters thanks to the Digitech Whammy. As a result, the Drop sounds great. Shifting down a few semitones sounds completely natural and it’s only when you start to approach an octave lower when you start to notice your tone change.
When I compare it to other pitch shifters or even high-quality pitch shifters: the Drop does an incredible job.