Marshall ST20H | Studio Series JTM 20W Head

The Marshall ST20H Studio Series JTM 20W Head brings the legendary sound of the iconic JTM45 to your fingertips in a more compact, versatile format. Designed to deliver the warm, harmonically rich tones that defined rock and blues, this all-valve amp head is perfect for stage, studio, or home use. With modern updates like power reduction and an effects loop, the ST20H delivers vintage tone with the flexibility today’s players demand. Whether you're after smooth cleans or thick, crunchy overdrive, the ST20H has you covered. The 20W output can be reduced to 5W, making it perfect for quieter environments while maintaining its classic tone. Classic Valve TonePowered by three ECC83 preamp valves and two 5881 power amp valves, the ST20H recreates the unmistakable sound of the JTM45 with incredible accuracy. From shimmering cleans to creamy overdrive, this amp is a versatile tone machine. Built for Modern PlayersWhile paying homage to its legendary predecessor, the ST20H incorporates modern f