What started out seeking the warm overdrive of the 808 but precision tone shaping of the ST9 to create anything from tight modern metal to fat blues grit resulted in the GRIM overdrive. Mix the versatile range of tone shaping controls with additional headroom from the internal charge pump and it's off to riff city.
CONTROLS
Name / Location / Description
Impedance / Internal (trim) / The variable impedance buffer is set to 1M by default and won't matter for players using active pickups or buffered pedals in front. There is a significant impact for single coil pickups. Decreasing impedance and loading the down the pickups will attenuate the top end and smooth out the high-end grit. Pushing the impedance (default) the top end and pickup attack are more defined. Default: 1M
Level / External / More on tap than the stock 808. This is your standard volume attenuator that allows you to set from unity or below unity, or crank it up for a boosted signal.
Tight / External / Pre-gain high pass to tighten up the low end.
LPF / Internal (trim )/ Smooth out the high end of the gain output. Default: 9/10, Almost fully CW.
Low / External / Cut/boost the bass frequencies.
High External / Cut/boost the high frequencies.
Blend / External / Mix between 100% buffered dry signal and 100% wet signal. Full CCW for buffered dry.
Clean Boost / Internal (trim) / Adjust from unity buffer to clean boost on the 100% dry side of the Blend. Default: 3/4 CW
Mid / Internal (trim) / Adjust the amount of mid hump. This is the classic Tone control and it alters the tone before going into the 2 band EQ. Default: 8/10 CW
Bite / External / The mid boost control contours the frequency peak from low mids (counterclockwise) to high mids (clockwise). Start at noon.
Gain / External / More on tap than the stock 808. This works in conjunction with the toggle switch.
Clip / Internal [DIP] / Allows for symmetrical LED (high gain punch, compressed)[on,off], Diode Lift / None (clean boost) [off,off] or asymmetrical silicon (dynamic) [off,on] clipping options
Default: Left up (LED), Right down
Bypass LED Brightness / Internal / Adjust overall brightness of front LED. Default setting at minimum (full CCW).
POWER 9VDC ONLY - CENTER NEGATIVE
This product contains internal circuitry to increase the 9VDC supply to higher voltages for additional headroom.
This product contains THE overvoltage circuit for 9v input only.
CONSUMPTION 41mA
