2. Reece bass (KOAN sound, noisia etc)
Take some saw waves and detune them.
Then mess them up using FX (different kinds of distortion, chorus are the most common ones). Then filter them (automated EQ notches or bandpass) and compress them (multiband compression too). Repeat as many times as you feel is necessary: 3 or 4 times isn't unheard of, but you don't always have to go that far.
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You can make a reece bass out of two detuned saw waves, but you can also use other wave types to achieve similar results.
For the FX part, I think the best way is to take the input signal and split it into at least three bands (low, mid, highs), and applying maybe a few saturation to the lows, and use chorus, reverb, phasing and any other FX on the mids and highs. Then you compress it, render to wav, reload it into project and repeat the steps (resampling). You can do this as many ways as you want/feel necessary. There are people who resample just once, and I heard of people resampling like 15 times. It's your call.
Keep in mind that all FX applied to a reece bass need to be subtle (specially when you're resampling) as things get nasty real quick with these kind of bass.
Also, reeces need movement: automated filters (notch, bandpass), specially when you are'nt using saw waves to make the bass sound.
Search for Black Sun Empire's tutorial on their youtube channel (you have two of them, one for dnb drums, and the other for reece and pluck basses), and SeamlessR channel as well (he uses FL Studio and Harmor).