Extensive compressor reviews and FAQ

Tone Factor Pulp Mill: This one is a different approach to the OS circuit, as its "comp" knob is not a bias control, but rather a wet/dry blend. So unless you open up the housing and fiddle around with the trimpots in there, it will be at a bias setting which is on the smoother side rather than the funkier side. It has low noise, and blending your clean bass signal in allows it to have slightly better low end than the Pedal Doctor one, but it will still benefit from a bass mod. The tone is slightly darker than the PD. All in all this one seems designed so you can add just a bit of the OS flavor to your signal, rather than being a "squash box" like the PD and VTP versions. But it works well and sounds nice, if a bit subtle for my tastes. It has the usual modern touches like TBP footswitch and nice components, but the paint job on the box is a bit sloppy.
 

 
 
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