The Lehle Dual SGoS is a high-quality, programmable switcher designed for guitarists using multiple amps and effects. It allows you to seamlessly switch between two amplifiers individually or simultaneously, with the added benefit of a tuner output. The unit eliminates hum and ground loops, ensuring a clean and pristine signal path. Its MIDI capabilities and intuitive controls offer flexible and versatile amp switching, making it an indispensable tool for professional guitarists.