Ideas, Focus, and Innovation, Available with audioXpress November 2017

Discover some outstanding speaker designs in the Midwest Audiofest 2017 Speaker Competition with audioXpress November 2017. In this edition, audioXpress also features one of the most eagerly awaited reviews: the OPPO Digital UDP-205 4K Ultra HD Audiophile Blu-ray Disc Player. Focusing on audio processing, we discuss active noise control for headphones, and we address "Measurement of Audio Devices" that use automatic gain control (AGC). In our "You Can DIY!" article, Dan Joffe describes a 1 kHz oscillator with less than 2 PPM distortion. And much more...