Pro II - two passive pickups, series/parallel switching
Pro IE - one active pickup, pick attack switch, low-mid boost switch
Pro IIE - two active pickups, pick attack switch, low-mid boost switch for neck pickup, upper-mid boost/bass cut switch
Controls: Master volume control (Pro II and Pro IIE), individual volume and tone controls for each pickup. Chrome hardware with optional XLR output, pickup selector switch (Pro II and Pro IIE).
Courtesy: A HISTORY OF WAL BASSES: Pro Bass series
Pro IE - one active pickup, pick attack switch, low-mid boost switch
Pro IIE - two active pickups, pick attack switch, low-mid boost switch for neck pickup, upper-mid boost/bass cut switch
Controls: Master volume control (Pro II and Pro IIE), individual volume and tone controls for each pickup. Chrome hardware with optional XLR output, pickup selector switch (Pro II and Pro IIE).
Courtesy: A HISTORY OF WAL BASSES: Pro Bass series
