4 knob, with names too hard to understand as volume or tone ... It's simple, it's Boss. I have never seen the manual, y'en not need all fawn.
Config is: Fender Fat TARS -> DF-2 -> various pedals -> Mesa studio preamp
Washburn WI64 -> DF-2 -> various pedals -> Marshall JMP-1
Feedback is very musical when it is used with another distortion APRS, noisy solos for the Sonic Youth.
Used alone, the distortion is yucky and draft, a sense be derived from the DS-1, it does not happen ankle, she eats the treble and the dynamics and produces a breath really irritating.
Nirvana sound ... Mouai Ok but then on the worst pirate lives saved in voice recorder. I would love to try a "Made in Japan" to compare.
7 for the feedback, 3 for the distortion: 5 verdict.
I bought it in 2003, qualitprix good value, I like feedback with 0 at the disto RULES Tone 2 hours.
Since I manufactured a clone of Sonic Annihilation, which is a real feedback and does not really the same rsultat (the DF-2 is easier to grate, but sounds more synth. I would do the same choice since it is the only pedals in its class.