Source Audio Ultrawave Multiband Bass Processor Pedal

This pedal has a learning curve, and you have to be prepared to use the Neuro-App. But if you're willing to put in the time you'll be richly rewarded with an unlimited palette of unique sounds that no other pedal is capable of. Via the Neuro app you can also access the community presets of other users, which I can highly recommend. Besides good sounds, looking at how others use the app to get to these sounds will also help you to gain a better understanding of the unbelievable versatility of this pedal. Reading the manual is also a good idea. (Btw the only difference between the "Bass" version and the regular version are the factory-installed presets. You can easily change these, so the two pedals are really identical apart from the color.)