Boss VF-1 is a multi effect 24bit A / D (digital)
It also has an internal 30 bit processor
Midi IN / OUT, Line separate channels, mono or stereo output or Digital.
Control pedal input single or full expression Anyway .........

UTILIZATION

The manual is explicit in every respect and above all it gives us a little note on the use of the south.
Handling of internal module is all that is simpler
The effects are creatable and scalable to 200%
In short in an hour and a bit of logic, the VF-1 is ready !!!!!!

SOUND QUALITY

All effects are simply superb (some residual hum, however deplorable effects on some but there's no loss of life)
Tested on bass, piano and vocals, The VF-1 escaped handily nay splendidly, restored the sound is superb
On guitar, the effects are simply awesome and disto provided enjoyment (provided they are set in advance, but nothing too serious)

OVERALL OPINION

I use it in the studio, rehearsed and live for 3 months and so far no complaints, more than the control via a MIDI board makes it even more formidable.
Although still expensive to buy, the VF-1 is essential crew for my taste (still to have the stuff to make it sound)

So no regrets for the purchase (the net or country near the price drops significantly ed)