Nothing to add from the previous comment, if not a touch tone system to place the distortion before or after the equalizer, and place the loop where you want to insert between the effects (after the compressor, after distortion after EQ ...)

All analog MXR with sound on all floors

UTILIZATION

Nothing could be simpler
The pedal (required to run the beast) can trigger each effect, each effect has settings simple and effective on the rack
no manual, but what could it serve?

SOUND QUALITY

While there, we wonder where is the progress on the effects since the 80 ...

The sound is amazing, hot, with settings simple and effective

I particularly recommend compression, EQ and ... DELAY, which although a little short, this is natural and

Breath is quite acceptable for an analog machine, even when all effects are switched

OVERALL OPINION

I use it for 2 years and I can no longer listen to digital multi effects without a little grin! good blades copies of "real" effects like the MXR

bought used 265 euros, I would do without hesitation that choice

Only caveat: electronics lived (given its age, it is normal), and I will soon restore some order within (a knob death and bad contacts in the food)