The only effect that isn’t dynamic is the Filter Section of the Bubble  Tron Dynamic Flanger Phaser. With the Filter, you can control the  different ramps or random nature of the pedal with the Shape Control.  The very exciting part of this pedal is the Sensitivity Control which is  actual like a vintage synth style bandpass filter control. It shapes  the bandpass filter on the filter and gives you some incredible keyboard  like sounds.Robert Keeley and his crew are fans of Zappa. Rabid Fans. This pedal  explores some of the famous, but very hard to find sounds of the past.  Keeley Engineering has created another batch of Neo-Vintage effects that  never were. This time Keeley has made the Flanger and Phaser in dynamic  with your pick attack and strength. Then add the Random Stepped Filter  with the new “M-Style Synth” bandpass shaping feature, and you have a  lead guitarist’s dream tool. Yeah, you play this thing like an extension  of your mind and fingers.

The Keeley Bubble Tron Dynamic Flanger Phaser and Random Synth Filter has three modes of operation.

The Flanger section of the pedal draws on inspiration from the MicMix  DynaFlanger. This incredible piece of gear was used by FZ to create many  of the sounds in the late '70s to mid-'80s where a dynamic flanger was  used to get envelope based flanging in his solos. A dynamic flanger is  one that starts and stops based on your pick attack or envelope. The  word envelope is used because if you were to measure the “weight” of  your guitar signal and put it in a storage container (the “envelope” is  an imaginary capacitor) it can then be used to control another part of  the circuit. The Bubble Tron uses your playing to start and stop the  flanger. Most flangers just cycle around and around and you can hear  that swooshing in the background. Not in this case, it only cycles as  you play. Many flangers offer only positive or negative feedback. This  one allows you to try either with the FDBK Control. The negative  feedback sounds more vocal like and hollow while the positive feedback  is more conventional and has a thicker, smoother sound. The Sensitivity  Control allows you to set how delicately you want to play and have the  flanger go fully crazy on you. You can set for crazy silverback gorilla  flange or easy flangin’ on Sunday morning. The Depth Control is just  that, how deep you want the flanging to be.

The DynaMoPhase  section of the Bubble Tron is actually two phasers. One has an LFO that  you set the speed of with the Rate Control (while it’s depth is  dynamically controlled) and the other is a true Dynamic Phaser. It  starts and stops based on your pick attack. Again, you can set the Depth  and and Sensitivity of this phaser to give you a very watery sound that  is all based on your guitar’s signal. You can turn off the standard  phaser and just run it DynaPhase by turning the Rate Control off.

The White Zone is for Loading and Unloading Only.

Features

• DynaFlange,      DynaMoPhase and Random Filter effects
• Classic      experimental and progressive sounds of the past
• Simple,      easy-to-use control layout
• Rate,      Sensitivity, Depth and Level controls
• Filter,      Phase and Flange toggle switch