Seymour Duncan Pickups — It's All About the Tone! Think of the SCR-1 Cool Rails as the cleaner, brighter brother of the Hot Rails. The SCR-1 Cool Rails are wound to have a more dynamic sound, and are perfect for players who need a louder, punchier, single-coil sound with plenty of fatness. The same twin-coil design like that found in the Hot Rails is used, so these single-coil-sized beauties are true humbuckers. Guitarists of every genre have utilized the SCR-1 Cool Rails as the key to their tone!Cool sound The SCR-1 Cool Rails are smooth and bluesy single-coil-sized "rails" humbuckers, recommended for blues, classic rock, jazz-rock fusion, heavy rock, and aggressive instrumental rock. Created by popular demand, Cool Rails use the same twin coil design as the Hot Rails, but are wound to produce a clearer, brighter, and more dynamic sound. Hotter and louder than both the Vintage Staggered (SSL-1)