TONE
LEVEL
DRIVE
IN
OUT
4
OD9 Overdrive
FEATURES AND CONTROLS
●Identical to the original circuit and featuring the JRC4558 IC chip, the OD9  
produces natural overdrive of a tube amp that smoothly responds to input 
signal level (playing dynamics).
●Easy-access, no tools battery compartment.
●AC jack to connect optional AC adaptor for long hours of continuous use.
①IN (input jack)
Input jack to connect to the output of 
guitar,other effects or related equipment. 
The product automatically turns on when 
a plug is inserted into this jack. When not 
in use, disconnect plug from input jack to 
preserve battery life.
* When an external AC adaptor supplies 
DC power to this product, the power is 
always on and battery is preserved 
regardless of input jack connection.
②OUT (output jack)
Output jack to connect to input of 
amplifier or other effects.
③DRIVE 
This controls overdrive level. Turn it 
clockwise for more overdrive.