OD/booster pedal all analog powered with a JRC4558 (still a reference in OD)

UTILIZATION

So here we get our usual Volume Tone Gain and on/off from the tubescreamer.
The originality is that the pedal manage to have a boost switch, the extra pot called boost help up setting up that boost, it is just an another feedback loop setting but it also add mediums, Yummy!!
The tone is special, it more working like a presence control.
a 3 way switch is there to, giving Vintage/FM/No comp settings, meaning full med bump for vintage, Flat mids, and no comp (no cap/resistor/diode in the feedback) this mod is loud as hell, a great booster, very convincing.

SOUND QUALITY

I got a older model before the Mosfet mod, it is even better, no too brite, the sound is very solid, very rawring on a OD channel

OVERALL OPINION

The best OD out there!