I purchased the unit from a private party and the original owners manual was not available. Having the ability to download it was extremely helpful and clarified operating the equipment immensely. This is a complicated unit and without the manual I would not have been able to maximize it's potential. Thank you.
Being a user of older radios of many kinds, preferring them over more modern rigs, this manual was invaluable in the programming of my two. I now know for certain what the assorted buttons functions are, and am very grateful to have found this excellent site. Many thanks for your assistance, Tony.
5 star quality on these downloadable manuals. Easy to read and all the information is there. A must when doing a custom install or needing to service your precious old school electronics.
Text excerpt from page 11 (click to view)
Outputting the Direct Sound and Octave Sound Separately
When you connect a plug to DIRECT OUT, only the direct sound is output from the DIRECT OUT jack, and only the octave sound is output from the OUTPUT (MONO) jack. This allows you to add effects separately to the direct sound and the octave sound.
* In this case, sounds are output only from the DIRECT OUT jack when the effect is switched off.
<Connection Example>
Guitar Amplifier Multi Effector etc. Electric Guitar
When the OC-3 is in DRIVE mode (p. 7) while DIRECT OUT is connected, the direct sound (without the distortion applied) is output from DIRECT OUT. Taking sounds with effects added using a multi-effects processor or other such device and the sounds in DRIVE mode and playing them through multiple amps allows you to produce an extremely low sound with greater separation. In such settings, the DIRECT LEVEL knob (p. 6) adjusts the direct sound level.