9v power supply
between jack and jack output
red LED light to indicate good "on" or "bypass"
Then left-right
A volume slider
1 cursor frequency drives

UTILIZATION

Everything is very clear, anyone can get out in 3 min.

SOUND QUALITY

Cursors very efficient, almost too much, use with caution, and high gain attention ds you push the sliders too.
Fortunately volume slider efficient and convenient for locking / volume of the amp, good musicality of sound in the mix live

OVERALL OPINION

Bought in 2000 for 720 francs, it is robust, efficient and convenient.
quality level is as good as any equalizer, is not the time that the sliders back ...
Obviously can not replace an amp ampeg kind of combat or trace, but does his job and adds a "plus" when we want to emphasize certain passages and / or causing severe beating.
I add that it is almost impossible to find ...