SW1X Audio Design™ AMP I “Genie” Performance Level 1/2 Integrated Amplifier   AMP I is essentially a 2 gain stage Power Amplifier coupled with a High Quality Pre-amplifier. EL84 power pentodes are known for their energetic and musical qualities being a very popular tubes due to their usage in the guitar amplifers and radious in … Continue reading SW1X AMP I “Genie” Integrated Amplifier