A small battery-powered headphone amp is a useful item to keep in your tool bag or remote kit. It can provide additional monitoring options when the headphone jack on your mixer is already taken or ...

If you asked [Hans_Daniel] what he learned by building a tube audio amplifier with a dozen tubes that he found, the answer might just be, “don’t wind your own transformers.” We were impressed, though, ...

[Ynze] has built an audio amplifier that looks and sounds great. His amplifier uses a National Instruments (now TI) LM3886 Overture series 68 Watt power amp. The LM3886 places [Ynze’s] amp squarely in ...

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You can use three discrete transistors to build an operational amplifier with an open-loop gain greater than 1 million (Figure 1). You bias the output at approximately one-half the supply voltage ...

Depending on your budget, the $499 NAD C 316BEE V2 might be the ideal stereo integrated amplifier to build a hi-fi system around. Our traffic over the past three years has told a very interesting ...

Integrated amplifiers have become very popular again with audiophiles for a few reasons and we think it’s fair to say that expensive separates are becoming less relevant. Build quality matters.