One Control Blackberry Bass OD

It's an overdrive unit designed to fit the requirements of todays demanding Bass players. A palette of distorted sounds can be employed at foot-switch. It has mid and bass controls in place of the tone knob on the BlueBerry.

This circuit is the result of suggestions from leading bassists who have shared their thoughts on how they'd want a bass overdrive to work with the designer.
Distortion in bass amps has made some skid marks in music history from Everly Brothers (along with a few other Country and Western artists) through John Entwistle of The WHO, through Lemmy of Motörhead, Bootsy Collins of P Funk. Each showing different uses of distortion.

These are the key features that are the basis of the BlackBerry BOD design:

• As flat as possible frequency response, and as far possible, make it sound integral to amplifier.
  
• Wide range of distortions: from light transient clipping to massive compressed bass fuzz.
  
• Dynamic feel at low to medium settings with diffuse clipping knee, id est. ability to travel through different shades of distortions.
• Heavy duty design for reliability.
  
• Battery monitor built in - when battery runs low LED-lights gets dim.
  
• Low current draw for added battery-life.
  
• Security: the unit must compile with standards set for this intended use.
  
• Boost capability for additional overdrive from the amplifier used.
  
  
• A tone-control for the sensitive low-end - use less bass for higher settings of DRIVE for better Clarity in chord play. Use full bass even at full DRIVE for a bass synth effect
• A nice colour: this one's the colour of mashed blue berries.
  
• Complete bypass - something almost mandatory these days.
  
• Original Circuit.