The Marshall DSL15H 15W guitar amp head is a no-nonsense, mini-brute. It is identical to the DSL15C except it doesn't feature reverb. It is compact, making it easy easy for the musician on the go. It's an all-tube, 15W head that delivers great tone in a compact "small box" design. Powered by two 6V6 power tubes, with four 12AX7s in the preamp, the DSL15H might be small, but its guts are as serious as its big brother, the DSL100H..