Set of four matched Winged "C" EL34 tubes. Considered by many as the best EL34 power tubes available, SED are the original Svetalana tubes. They have superior performance and reliability under overload conditions (i.e. guitar amps!). The high end is smoth and the harmonic content is rich. This tube has a smooth transition from clean to breakup and is the ultimate tube for that British classic rock sound.
Whether you are replacing old tubes or just want to improve your stock amp, you owe it to yourself to try the SED brand of tubes. They will cost you a little more but they will give you the best that new tubes can give.