In the high-fidelity audio landscape, trends often swing like a pendulum. We have seen the rise of mega-watt solid-state monoblocks, the resurgence of Class D switching amplifiers, and the continual refinement of push-pull tube designs. However, there is a quiet, stubborn corner of the audiophile world that refuses to compromise on the purity of the Single-Ended Triode (SET) topology. It is in this rarified air that the Volck Marl 2 resides.