[Dane] built this excellent home theater pre-amplifier. He used [Mark Hennesy]’s pre-amp design to start with, and added selectable XLR, RCA, SPDIF and even USB audio inputs. Discrete inputs ...

and the passive preamplifier's role is only to supply that part of the circuitry that allows it to transform the amplifier into an integrated amplifier. It must be stated clearly that, in the case of ...

DIY is another way that many audiophiles engage more closely ... But this was my first foray into separate pre and power amps so I had no preamp to use with it and only a tiny budget to play with. I ...

For this year’s Hackaday Prize, [skrodahl] is building a beautiful tube preamp. It’s a masterpiece of glass and free electrons, it already works, and it sounds great. This circuit is a ...

This circuit, shown in Figure 1, interfaces an analog microelectromechanical systems (MEMS) microphone to a microphone preamplifier (preamp). The ADMP504 consists of a MEMS microphone element and an ...

The STM is based on concept of quantum tunneling effect. This type of microscope works in two operating modes: The STM preamplifier is based on op-amp OPA124. This op-amp works nonlinear, unstable in ...

McIntosh Laboratory, Inc., possibly one of the oldest and most venerable names in U.S. hi-fi has announced the launch of its latest preamplifiers in the form of the C55 Solid State Preamplifier ...

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