In order to obtain a good audio reproduction at different listening levels, a different tone-controls setting should be necessary to suit the well known behavior of the human ear. In fact, the human ear sensitivity... [more]
circuit from:http://www.extremecircuits.net/2010/02/automatic-loudness-control-circuti.html
This circuit could be used for replacing your manual volume control in a stereo amplifier. In this circuit, push-to-on switch SW1 controls the forward (volume increase) operation of both channels while a similar switch SW2... [more]
circuit from:http://www.extremecircuits.net/2009/07/digital-volume-control.html
This unique property makes the ‘paraphase’ configuration of interest if only treble or bass needs to be adjusted - it is not possible to adjust both at the same time! Essentially, it’s the difference in... [more]
circuit from:http://www.extremecircuits.net/2010/05/paraphase-tone-controller.html
Circuit of a digital volume control using six discrete ICs, including a 5V regulator, is presented. [more]
With graphic equalizer we make selective cutting off or boost, of selected departments of acoustic spectrum. With this way we can adapt the musical reproduction, in the characteristics of space where we hear. This can... [more]
Circuit with electronic symmetrical input, with possibility of regulation of the gain from the pontesometer RV1 and the level of signal with the RV2. The quality of pontesometer RV1 (as other material), should be very... [more]