The EHX 44 Magnum Guitar Power Amp head delivers 44 watts of clean and natural power but can also deliver a true amplifier overdrive at the turn of a knob. From your pocket to the stage, the 44 Magnum is the perfect gigging and practice solution. Despite being described as a âguitar headâ the 44 has the character and control to work with any electric instrument. Flip the brightness switch for a more defined top end. The sweet tone with an extra power edge that can sit in any backline.