SM-9 Pro+ Super Metal

It offers a flexible saturation circuit capable of producing a wide range of high-gain guitar tones, from classic NWOBHM crunch to modern drop-tuned metal sounds. The pedal features Gain, Level, Scoop, and Edge controls, allowing users to sculpt brutal, beefy guitar tones while retaining note clarity and definition.

The Scoop control is a mid-band elimination filter with a range from 200 Hz – 2 KHz, while the Edge control is a Hi-cut shelving filter continuously variable between 2-15 kHz. These controls are highly interactive and work like a parametric equalizer, enabling users to find the perfect mix of brutality and clarity.

The Gain control adjusts the degree of saturation the pedal provides and simultaneously boosts the upper midrange band by up to 20 dB at 1 kHz. The pedal also offers switchable 9- or 18-volt operation, providing extended headroom, frequency range, and dynamic response.

Technical Specifications:
- Input Impedance: 500K Ohms
- Output Impedance: 10K Ohms or less
- Maximum Gain: 52.5dB (4 kHz)
- Equivalent Input Noise: -60dB or less (IHF-A)
- Control: GAIN, SCOOP, LEVEL, EDGE
- Switch: Bypass/Effect, Voltage Switch (9V/18V)
- Indicator: Bypass/Effect LED, 9V LED, 18V LED
- Internal Circuit Voltage: 9VDC / 18VDC (DC / DC Converter)
- Power Consumption: 12mA/9VDC, 42mA/18VDC
- Dimensions: 74 (W) x 124 (D) x 54 (H) mm
- Weight: 600g (including battery, excluding AC adaptor)
- Power Supply: 6F22 / 6LR6 9V battery x 1 or Maxon AC adaptor
- Battery life:
- 9VDC manganese battery: 27 hours @ 25 degrees C
- 9VDC alkaline battery: 50 hours @ 25 degrees C
- 18VDC manganese battery: 1.3 hours @ 25 degrees C
- 18VDC alkaline battery: 6 hours @ 25 degrees C

The SM-9 Pro+ features Mechanical True Bypass switching via a Fujisoku 4PDT switch and requires a high inrush current of approximately 2000 mA upon startup. It is recommended to power the pedal with a high current power jack or leave a battery in the pedal if using a power brick with lower current capacity.

The Maxon SM-9 Pro+ Super Metal is a versatile tool for achieving high-gain amp stack tones in a compact pedal format, making it suitable for both professional metal guitarists and enthusiasts seeking powerful metal distortion effects.