Simble Predriver

The Simble Predriver by Mad Professor is a versatile effects unit that functions as a preamp, booster, compressor, and upper harmonic enhancer. It offers a wide range of tonal control and is designed to be easily adjustable using only the picking attack and guitar volume knob. The pedal features a Hot/Cool selector switch that provides additional boost control.

Technical Specifications:
- Controls: Hot/Cool selector switch to match instrument pickups and personal taste
- Electrical Specifications:
- Power: 9V DC (negative terminal at DC-jack tip)
- Power consumption: 2.5 mA pedal ON / 0.1 mA pedal OFF at 9V DC
- Input impedance: > 2 Mohm
- Output impedance: < 50 kohm
- Using DC-power jack removes the battery from the circuit
- Power Requirements: 6F22 9V battery or DC eliminator 2.1 mm plug center negative and positive sleeve. When the LED dims, it is time to change the battery.

Additional Information:
- The Simble Predriver's special circuitry uses a low-noise transistor with high input impedance (over 2 Mohm), allowing it to boost even piezo pickups without tone loss.
- The output impedance of 50 Kohm enables it to work effectively even in front of fuzz pedals.
- The pedal has very low power consumption, allowing it to be used with a 9V battery for several years if the input jack is removed when not in use.