audioXpress September 2016

Volume 47
Issue 9
September 2016

FROM THE EDITOR’S DESK—Impressive Speaker Designs, by João Martins, p. 4

Room Correction Revisited (Part 3): Serious Tools for Room Correction, by Ron Tipton, p. 8

SOUND CONTROL—Your Ultimate Sound-Measuring Instrument, by Richard Honeycutt, p. 14

Evolution of Compact Deep Bass Subwoofers, by Mike Klasco, p. 18

A Loudspeaker Quest: An Unexpected Journey, by Ward Maas, p. 24

The PVC Bipolar Duo, by Ken Bird, p. 30

The DSP Assisted Reflex System, by Perry Marshall, p. 36

Eliminating Room Reflections in Woofer Measurements (Part 2): Applying the Techniques, by Richard K. Mains, p. 48

QUESTIONS & ANSWERS—Life in a Speaker Workshop: An Interview with David MacPherson, Owner of Studio Electric, by Shannon Becker, p. 54

HOLLOW-STATE ELECTRONICS—Output Transformers for Hollow-State Amplifiers: Design Parameters, by Richard Honeycutt, p. 60