The FL9 has four knobs to control: Speed, Width, Regeneration, and Delay Time. It is a very good flanger. It's a bit noisy. The sound is rich and creamy but for subtle,gentle things it sounds incredibly warm,watery with sweeps to super silly swirls. Sweet whooshing effects and wicked jet plane type sounds are possible,as well as a light chorus sound.
It spretty typical of a flanger and does that plastic tube thing but can be less extreme.
For some reason it causes feedback in my signal chain, particularly in my DIY reverb tank setup. Thats not a bad thing at all.
I haven't fiured out why, and really I don't care cos its cool.
Not overly warm or cool sounding, it just sits well in my signal chain right after the delay.
Good Points: Easy to use, sounds better than a few other flangers I've tried, especially in regard to noise like the EHX and DOD flangers.
Bad Points: I think one of the pots is a bit dodgy as there's almost no difference in LFO speed til the last 20%
Good Points: Nice tones and range. I use it on vocal effects as well as guitar after a Big Muff. Sounds rad on either.
Bad Points: Can suck volume out if in a certain place in chain, but for me not a problem.
Good Points: sturdy box, highly tweekable, can sometimes be found cheap
Bad Points: mine has a faulty switch. sometimes when you press it down the pedal doesn't work. it's probably a minor fix.



