A Designs KGB-II The A Designs KGB-II and KGB-Itf are instrument preamplifiers that supply +4 dB line level balanced outputs. The KGB-II is a dual-mono (stereo) unit while the KGB-Itf is a single channel version with a useful three-band, high/mid/low, fixed frequency tone control with up to 12 dB of cut/boost.The KGB Series uses discrete [...]