Send in your Dunlop DVP4 Mini Volume Pedal for us to Install a high quality Class A buffer that will preserve your guitar signal without any tone loss. 
 
After the instalation of the buffer all other functions of the volume pedal such as Expression and Tuner out will work just like on a standard pedal. 
 
The power jack to the buffer is installed on the left side of the pedal and the power requirements for the buffer are  9V - 18V
 
Turn around time to install the buffer is 1-2 days after reveiving the volume pedal. 
 
Once you place the order for the buffer mod, we will email you the shipping address where to ship in your pedal.