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FROM THE EDITOR’S DESK—Ten Years More of Everything, by J. Martins, p. 4
MARKET UPDATE—Multiroom Audio: From Wired to Wireless, by J. Martins, p. 8
Improving GaN with Digital Control: Axign Class-D Audio Amplifier PWM Controller Demonstration Board, by Stuart Yaniger, p. 22
New Ways to Measure Noise Cancelling, Transparency, and Other Modes in Headphones and Earphones, by Brent Butterworth, p. 28
SOUND CONTROL—Conference Room Acoustics, by Richard Honeycutt, p. 36
Optimizing Variable-Frequency Tone Controls, by Douglas Self, p. 40
JFETs in the Variable-Resistance Mode and Their Application in Audio Circuits, by Dimitri Danyuk, p. 46
eDD—A Direct-Drive Amplifier for Electrostatic Speakers, by Jan Didden, p. 54
HOLLOW-STATE ELECTRONICS—Tubes, BJTs, JFETs, MOSFETs, or ICs?, by Richard Honeycutt, p. 61

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