-The Od/Boost Module-
The OD section of the OD/Boost Module consists of Drive, Level, and Edge
controls. Edge gives you control over the high-end bite when OD is
engaged. The independent Boost Preset adjusts fatness/volume of the
signal and includes a push/pull mid-boost. Properly adjusted, the amp
can cascade from clean, to blooming/singing overdrive, to all-out war.
The OD/Boost Module uses 2 footswitched relays with an isolated power
supply for reliability and low noise.