Marshall, ED-1 Compressor Pedal
Compression is perhaps one of the most useful and versatile
effects available to any guitarist who is interested in improving
their tone.
The purpose of the Compressor pedal is primarily to allow you
to modify the sustain and attack of your guitar sound. Using
classic variable gain techniques the Compressor will provide
masses of clean sustain, which you can utilise whatever your
style. The Compressor pedal senses the level of the incoming
guitar signal and as the signal level decays the gain of the
internal circuitry is boosted to provide extra level and hence
sustain.
The attack control modifies the dynamic response of the guitar
signal (the effect of plucking a string) and allows you to
achieve a range of effects from rounded and mellow to
percussive and funky.
The Compressor also features an Emphasis control which
allows you to assign compression and target the frequencies
you want to compress. This means that you can, for example,
tighten up or compress your bass notes and let your treble
notes ring out.
The Compressor features a passive bypass for the main signal
path to ensure complete tonal integrity and has a quality of
tone matched only by its versatility.