Here is the amp that started it all, the 300B driven with a 6AN4 tube in the DRD configuration. Building this amp with all Electra-Print iron will give you results that will please you. Extended frequency response and very low distortion are its hallmarks. Advanced test equipment is suggested to tune this amplifier for best performance. All designs are the sole property of Electra-Print Audio Company with all rights reserved worldwide. Licensing is available for commercial use.