A perfectly optimized circuit

The AMP14 circuitry is meticulously designed and optimized to provide the best possible sonic performance, not to mention the typical Korg Nutube sound.

• Use of the Toshiba 2SK209 field effect transistor as an output buffer for the Nutube module.
• Separate signal and shielding grounds to avoid interference and noise.
• The negative feedback of the amplifier circuit effectively reduces distortion while providing frequency band extension.
• The addition of a dedicated JRC ultra-low noise volume controller provides noise reduction at low volumes, while improving sonic transparency.