"Choose Maxon for distortion." People often said that for the legendary overdrive OD880 swept the music scene in 1977 - 1980’s. OSD9 is an updated version of original Maxon OD880 Overdrive/Soft Distortion.

OSD9 has two controls like OD880. Creates natural, soft and warm distortion like the sound of a tube amplifier. Original UA741 op-amp installed for overdrive circuit offers low-noise overdrive sound. OSD9 has a passive type distortion circuit which differs from OD808/OD9. Original UA741 op-amp installed for overdrive circuit offers low-noise overdrive sound. OSD9 has a passive type distortion circuit which differs from OD808/OD9.

True Bypass Switching with 4PDT mechanical switch. No tone changes when switching bypass and effect. Two-way power operation, using 9V alkaline battery or optional AC adaptor.(9V alkaline battery: more than 34 hours, 9V manganese battery: more than 17 hours) Easy-access, tool-free battery compartment. A stabilized DC to DC converter constantly provides stable DC9V power. Battery voltage drop and fluctuation of AC power source do not affect the tone and function.

MPN: OSD9
UPC: 840433000402

- 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: 14mA/DC.9V 14mA/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 17 hours, 25deg C / 77deg F (Panasonic 6F22NB)
- Alkaline dry battery 34 hours, 25deg C / 77deg F (Panasonic 6LR61G)