The single op-amp differential amplifier shown in Figure 1 is often used as an audio balanced line receiver. Obtaining high common-mode rejection is a critical requirement that requires four ...

A few summers of my misspent youth found me working at an outdoor concert venue on the local crew. The local crew helps the show’s technicians — don’t call them roadies; they hate that — put up the ...

Hardcore audiophiles are generally immune to sticker shock for high-end audio gear like $50,000 speaker-based rigs. But now you can get the same level of sound for a lot less if you build a sound ...

As a result of my most recent Touchstone Semiconductor blog post last month and exchanges with the “Guru of Grounding” (a.k.a, Bill Whitlock of Jensen Transformers – thank you, Bill), it got me ...

Pro-Ject Audio Systems has expanded its home audio line with the high-end X8 turntable and two new phono stages, the Phono Box SB3 and the Phono Box DS3B. Both Phono Box models have electronics that ...