Providing convenient compatibility between the new and the old, the GKC-DA Digital to Analog Converter from BOSS is a way to bridge the older DIN 13-pin GK signaling system with the new serial 1/4" connection used on the GM-800 Guitar Synthesizer and related products. Use this desktop converter to connect your newer 1/4" enabled GK divided guitar pickup, such as the GK-5 or GK-5B, or the GM-800 synth module to older Roland and BOSS guitar synthesizer modules, footswitches, and controllers equipped with 13-pin connectors.

This converter box sports a Hi-Z guitar input for direct conversion of instrument signals into the 13-pin digital standard and a micro-USB port for updating internal software and data. The GKC-DA includes an AC power adapter.