boost. 1 Knob, you turn, it works ...

UTILIZATION

The manual, I did not understand, there were none, I struggled a bit ... There is no arrow indicating which direction you should turn the knob ... I stop going there.
1 Knob = 1 pot.

SOUND QUALITY

There I was a bit more mixed.
Yes it is clever, we do not want to spend too much on (because we do not have much ...) for CAE (hey that reminds me of my TAF) to 98 € ... Bah, so there was not a straight thing.
Yes the lpb-1 colors the sound, so it adds a little distortion, yes it is 39 € ... That being said.
I tested in 2 config. Mine (5150 and boost in the loop) where the volume is very sensitive and the amp of a friend (caliber 50 +) I was super nice sound with the single caliber, then I settled into the lead lpb1 crunch and with the amp before it is passed as lead ... Quick 3 channels now! So, it depends on situations, but I think it stands up very well.

OVERALL OPINION

2 months after having had, at first I hesitated to return, then I said we should give him a chance. I did well.
Unbeatable value for money except DIY (it's not complicated, for that matter ...). Go 9 because his name is LINEAR POWER BOOSTER ... Na.