At the Hot Club of New York, patrons revisit the music’s past by spinning shellac 78 RPM discs of recordings made in the ...

Abstract: Bionic implants for the deaf require wide-dynamic-range low-power microphone preamplifiers with good wide-band rejection of the supply noise. Widely used low-cost implementations of such ...

This is an audio A/B selector with gain control. The project uses op-amps and resistors to smoothly switch between microphone and line inputs.

The ATH-ADX7000 is the Japanese hi-fi manufacturer’s newest flagship pair of open-back audiophile headphones. According to ...

Abstract: This paper describes the design of a front-end circuit consisting of an integrated preamplifier with a Sallen-Key Butterworth filter for very-high-frequency ultrasonic transducers and a ...

The A8 APEX and A10 APEX use the high-quality ESS9018 DAC, while the flagship A12 APEX features the ESS9039 DAC for enhanced ...