Volume: Controls the overall volume of the unit. There is a lot of it, so be careful not overload input of your amp.
Bass: Controls the low end of the unit.
Treble: Controls the highs of the unit.
Mid: Controls the mid-structure of the unit. This is a very sensitive and shaping control. The heart of the type of tone that you get out of the unit. On the original VH140C, it is called “Ultra Mid.” This is an accurate description because the unit has an underlying mid-structure, which is tailored to suit by this control. It doesn’t really remove or add mids, it just changes the point on the EQ Spectrum, which is being focused on.
Gain: Controls the overall gain of the unit.
Since this circuit stays as true to the original preamp as possible, it can be used either in front of an amplifier’s preamp section, plugged directly into a power amp, OR inserted into an amplifier’s power section. If used directly into a preamp, use extreme caution with the volume control, since there is plenty of volume on tap.
Like all PLX FX pedals, this pedal is a true bypass, so there is no coloration to your sound when it’s turned off. It utilizes a standard 9v 2.1mm power adapter and NO battery snap.