Question: must have effects for bass?
Answer: DigiTech Luxe Polyphonic Detuner. Not a chorus fan? ...  MXR M82 Bass Envelope Filter. ...  Aguilar Chorusaurus Bass Chorus. ...  EarthQuaker Devices Spatial Delivery Envelope Filter. ...  Electro-Harmonix Bass Micro Synth. ...  EarthQuaker Devices Hoof Fuzz V2. ...  Darkglass Alpha Omega Bass Preamp/Overdrive. ...  DigiTech Whammy Ricochet Pitch Shifter.