An output volume control gives adjustment of output volume levels. Low frequency accuracy maintained to get clear unmuddled bass sounds onto digital recorders. Q' at 600Hz approx 1.2 . At 3.5KHz approx 2.5. 18dB lift and cut at the shelving frequency of 100Hz.
Power supply is internal.
Power consumption is 5 watts. MID' changes the audio amplification of middle frequencies, its main purpose being to 'pull forward' or 'push back' sound. The control at the center gives unity gain to the equalizer. There is a range of 12dB gain or attenuation to allow for changes in overall level when the equalizer controls are operated. The second is to use the 'to insert' socket.