REFERENCE DESIGN: GS-EVB-AUD-AMP12V-GS 12V High-Efficiency Class D Audio Reference Designs These reference designs are intended to operate with or independent of the GaN Systems reference design bundle kit GS-EVB-AUD-BUNDLE1-GS to accommodate a Single-Rail Power Supply configuration. This reference design, GS-EVB-AUD-AMP12V-GS supports both a ‘direct’ +12V to +18V Single-Rail Power Supply, and a ‘boosted’ +12V