Overdrive ultra simple: input, output, level, tone and the drive must
power supply by 9V battery or transformer.

UTILIZATION

Using ultra-intuitive.
Fawn found any sound in any positron adquate of knobs.
The manual is history that we need a manual in the box.

SOUND QUALITY

I plugged into the clean channel of my amp (transistor) and it becomes a miracle tube amp (almost). Azro the drive was the clear sound that saturates and trs crmeux ds that attack the strings. Position five is heaven for fans of the great POPA CHUBBY and any good blues.
I hate to have an all-tube amp, "nirvana".
This pedals is the sound at the end of the feet (even if I put on my amp)

OVERALL OPINION

It's been ten years since I use it, but before I used it as a boost in saturation, but now it is clear that channel I prfre (ah the blues ...).
I bought it because it CHRE not silent and the more I knew nothing yet has the music.
Today I do not regret it and I do not even sell all the gold in the world.