hifisonix

Tag: NE5532

  • Very Simple, Accurate RIAA Phono EQ Amp

    Very High Quality Silk Screened PCB’s for this project are available from Jim’s Audio here:- Hifisonix RIAA Amplifier Here is a simple no-nonsense, accurate RIAA equalizer amp you can easily build.  The design uses an all-active topology and is based around an NE5534A low noise opamp. I make no claims for originality but you wont…

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  • Small Signal Audio Line Stage Buffer/Headphone Amplifier

    This design, which I completed in 2010, takes an LM4562 and marries it to a hefty single ended class A output stage, which can be biased up for either 50 mA or 110 mA. The output stage is included in the global feedback network and can achieve 1 ppm at 20 kHz  into 600 Ohms…

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