This circuit uses two quad op-amps to form an eight LED audio level meter. The op-amp used in this particular circuit is the LM324. It is a popular IC and should be available from many parts stores.

Digital and analog worlds continue to collide as Cambridge Audio announced that it has extended the retro-cool digital VU meter update that its Evo streaming amplifiers are getting today to its ...

An analog VU (volume unit) meter is a splendid moving-coil measuring instrument. It is a passive electromechanical device displaying a representation of the signal level in an audio equipment. Even ...

A new consumer audio brand has launched this morning. Meters Music is the offspring of Ashdown Engineering, which makes amplifiers for some of the world's most popular musical acts, including Foo ...

British audio experts Meters Music’s new Cubed speaker system is unashamedly cool, due not just to the minimalist design, but mainly because of the working volume unit (VU) meter built into the body ...

Forbes contributors publish independent expert analyses and insights. Technology journalist specializing in audio, computing and Apple Macs. One thing teenagers love is playing loud music. Another ...

Given its appearance in one form or another in all but the cheapest audio gear produced in the last 70 years or so, you’d be forgiven for thinking that the ubiquitous VU meter is just one of those ...

It's the brainchild of Ashdown Engineering, which makes amplifiers for some of the world's biggest musicians. When you purchase through links on our site, we may earn an affiliate commission. Here’s ...

VFD displays are beloved for their eerie glow that sits somewhere just off what you’d call blue. [mircemk] used one of these displays to create an old-school VU meter that looks straight out of a ...