The Boss SD-2 Dual Overdrive, first introduced in 1991, is a unique overdrive pedal that combines two distinct overdrive modes into one unit, providing a wide range of tonal possibilities. The SD-2 features a "Blues" mode for smooth, warm overdrive and a "Rock" mode for more aggressive, high-gain distortion. This dual-functionality allows guitarists to switch between a classic, vintage overdrive and a more modern, heavier distortion, making it perfect for a variety of musical styles, including blues, rock, and metal. Its versatile tone controls and dual channels make it a highly adaptable and reliable choice for any pedalboard. Looking to sell? Simply fill in our Sell Your Gear Form for a fast & free, no-obligation quote and turn your gear into cash or part exchange today!