audioXpress July 2021 PDF

Volume 52
Issue 7
July 2021

FROM THE EDITOR’S DESK—Multiple Ways to Amplify, by J. Martins, p. 4
Nuheara IQbuds2 MAX Hearing-Assist Earphones: Digitally Enhanced Hearing Devices, by Brent Butterworth, p. 8
NAD Electronics M33 Masters BluOS Streaming DAC Amplifier: The Complete Wireless Package for a Wireless Life, by Stuart Yaniger, p. 16
MARKET UPDATE—The Multiple Faces of Amplification Evolution,
by J. Martins, p. 24
MARKET UPDATE—Professional Power Amplifiers: A Market in Recovery,
by James Kirby, p. 38
The DH-220C MOSFET Power Amplifier (Part 1): The Circuit,
by Bob Cordell and Rick Savas, p. 40
A New Type of Amplifier for Direct Driving Loudspeakers (Part 1): Theory Behind the Design, by Paul Marchese, p. 50
Low-Distortion Voltage-Controlled Floating Resistor, by Dimitri Danyuk, p. 56
HOLLOW-STATE ELECTRONICS—Negative Feedback Amplifier Circuits,
by Richard Honeycutt, p. 62

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