A regular Hack A Day reader sent in a tip about an LM386 stero amplifier with digital volume control. The resulting build is very professional and could easily be adapted into a slick iPod dock build.

The Philips Semiconductors TDA8551 is a small audio amplifier with an integrated volume control. When operated from +5 V, it delivers a nominal output power of more than one watt into 8 ohms. It can ...

Once updated via the StreamMagic app, the AXN10 and MXN10 now have pre-amp functionality, allowing you to control volume from within that app. Cambridge Audio’s AXN10 and compact MXN10 network players ...

I have my MacBook Pro connected via thunderbolt to my Dell monitor. The Dell monitor has a line out port to my powered speakers. Unfortunately, my speakers have independent volume controls in the back ...

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 ...

Normally, if you want to control the gain of an amplifier, you’ll use a variable resistor. You know, like a volume control. But what if you want to control the amplifier’s gain with a voltage?