From our most advanced evolution of the Stingray, expect even more coherent bass definition and solid brawn from the larger high voltage energy storage. The EL84 output stage can be switched between 20 Watts of TRIODE power or 40 Watts of Ultra-Linear mode push-pull operation. The headphone output takes advantage of the entire amplifier and every ounce of attention to detail we have poured into this fantastic design. RF remote control included.