Baltimore Sonic Research Institute GFZ - Used batch003 ’57-style parchment pickguard and “ashtray”

’57-style parchment pickguard and “ashtray” bridge cover

Two ‘60s Jazz Bass single-coil pickups

Waverly Relic Nickel tuners and antique white binding

The GLXD24/BETA58A Handheld Wireless System is part of the GLX-D wireless systems family

Baltimore Sonic Research Institute GFZ - Used batch003 ’57-style parchment pickguard and “ashtray”The BSRI GFZ blurs the lines of distortion and fuzz. The circuitry uses complementary metal oxide semiconductor (CMOS) inverters to produce a wide range of distorted textures. The controls interact with each other to create wildly unpredictable sonic results. This Baltimore Sonic Research Institute GFZ is in very good condition and is fully functional. There is Velcro on the back plate.