The Boulevard Phaser BPH-10 is an easy to use phaser that has a lot of sonic possibilites.
Three controls let you manipulate the effected sound.
-  RATE - controls the speed/rate of the LFO wave that controls the effect 
-  RES - sets the amount of effected signal fed back into the effect (for a stronger effect) 
-  DEPTH - controls the depth/amplitude of the modulation (the size of the range in which the effect sweeps) 
The enclosure is heavy-duty plastic and has a metal bottom with a battery door.
    
    
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