USER MANUAL Optical Compressor & Clean Boost ®
OB.1 - optical compressor & clean boost User Manual ® Front Panel BOOST LEVEL: Varies the amount of boost when the clean boost circuit is active. TIP: Turn to maximum to engage soft clipping. OUTPUT: Controls the overall output level. Attenuation is possible at low settings as well as overall boost at higher settings. 9VDC OUT + COMP: Sets the threshold of the optical compressor circuit. Set below 50% for more transparent settings and above 50% for more sonically apparent compression.
OB.1 - optical compressor & clean boost User Manual ® Rear & Bottom Panels High impedance mono input. Low impedance mono output. Standard 9V DC center negative power input. Only 20mA available current required. The bottom plate can also be removed to access the battery and internal DIP switch. The DIP switch can be set to alter the frequency response of of the treble and mid boost functions. It’s operation is explained on the next page.
OB.1 - optical compressor & clean boost User Manual ® In Depth: Boost EQ Curves & DIP switch configuration DIP SWITCH: The internal DIP switch can be accessed by removing the back cover of OB.1 and is located on the PCB near the output jack. treble boost frequency response +20 +15 Set SW1 to ON for a lower treble boost corner frequency. +10 +5 dBr +0 Set SW1 to OFF for a higher treble boost corner frequency.
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OB.1 - optical compressor & clean boost User Manual ® Strymon Non-Transferrable Limited Warranty Warranty Strymon warrants the product to be free from defects in material and workmanship for a period of one (1) year from the original date of purchase. If the product fails within the warranty period, Strymon will repair or, at our discretion, replace the product at no cost to the original purchaser.
