Updated version of very first Maxon overdrive, OD880. Overdrive sound from post-integration circuit smoothly changes according to input level, offering highly dynamic response to picking technique. Creates mild and warm overdrive like that of a tube amplifier. Industry-standard op-amp, JRC NJM4558D offers low-noise overdrive sound. Employs a passive type overdrive circuit which differs from OD808/OD9.

OOD9 is most effective with tube amp, using like a booster. True Bypass Switching with 4PDT mechanical switch. No tone changes when switching bypass/effect. Two-way power operation, using 9V alkaline battery or optional AC adaptor. (9V alkaline battery: more than 23 hours, 9V alkaline battery: more than 10.5 hours) Easy-access, tool-free battery compartment.

OOD9 uses a stabilized DC to DC voltage converter to bump up to 9V (plus and minus 4.5V). Battery voltage drop and fluctuation of AC power source do not affect the tone and function.

MPN: OOD9
UPC: 840433000396

- Input Impedance: 500k ohms
- Output Impedance: 10k ohms or less
- Maximum Gain: 41.5dB(700Hz)
- Equivalent Input Noise: -107dB or less (IHF-A)
- Control: DRIVE, LEVEL
- Operating Voltage: 9V
- Power Consumption: 18mA/DC.9V 18mA/DC.10V
- Dimensions: 124mm(D)×74mm(W)×54mm(H)
- Weight: 580g (including battery)
- Battery: 9V battery (6LR61 or 6F22) x 1 or Maxon AC adaptor

Battery life
- Manganese dry battery 10.5 hours, 25deg C / 77deg F (Panasonic 6F22NB)
- Alkaline dry battery 23 hours, 25deg C / 77deg F (Panasonic 6LR61G)