The three-way switch lets you choose between 59 Tweed, 60's Blackface, and 60's British amp head style eq. The Barb EQ features a very interactive midrange control that gives a very wide range of adjustment and also features a push/pull pot that changes over to simulate the Bright input of the old tweed and british amps.
The Barb EQ accepts a 9 volts battery or can be powered by a 9 volt DC negative tip supply. Please do not use a supply over 9 volts DC, damage will result.
