Well I will not belabour the above: analog compressor, 4 rglages:

- Level

- Tone

- Attack (which rgle the attack time before the start of compression, you turn left you activate the faster compression and gums more you attack, you turn right and you let the breath attack your rating)

- Sustain (the compression ratio I think)

UTILIZATION

No manual with mine bought secondhand, I do not know if one exists.

it's not complicated to find a sound, rglages are quite intuitive, not really need to know how a compressor (even if using a) fairly well seen.

SOUND QUALITY

I find the rglages too extreme, the compression is really mistaken, and mean and really feel the effect of compression playing.

I found for myself that this musical rglages cantonns gear are in the ranges of low rglages "sustain", and letting it breathe attack.

I use it mainly on my guitar, a little on my bass, this pedal works with honntement 2.

I like him or her in a clear derrire wha, in agreements, in arpges, what a little while, either saturated with little gain, was used to obtain a more prcis and have a nice sustain on solos rock.

Some accuse him of adding breath ... mouais is a compressor, the addition of steam is intrinsque the same effect him, not having nanmoins other essay I would not allow me to say it is less or noisier than another.

OVERALL OPINION

I use it for a few months, this is a compressor which makes his job, without more, it does not color the sound (a can be an advantage).

Given the prices in secondhand has remained a good investment, but do not esprer miracles.

I do it again this choice that price, without problem.