Measurement and Optimization

Audio FIR Filtering

Although not a new technology, manufacturers are increasingly including FIR filtering in loudspeaker processors and DSP based amplifiers due to the significant increase in performance-versus-cost of microprocessors and DSP hardware. The advantages of FIR filtering include more arbitrary and fine control of a filter’s magnitude and phase characteristics, independent control …
Power

Power Distribution Part 3 – Branch Circuit Distros

As the size of the event increases, so usually do the power requirements. [URL=”http://soundforums.net/content/2886-Power-Distribution-Part-2-The-Poor-Man-s-Distro”]The Poor Man’s Distro concept[/URL] can help manage up to about 4 circuits sourced from around the room – assuming you can find that many, but that’s about it. Even finding two or three circuits may require long …
Power

Understanding Power Consumption, Part 2

[B]This is the second half of the article, split due to post length limits. The first part is here: [/B][URL=”https://soundforums.net/entries/1191-Understanding-Power-Consumption-Part-1″]Understanding Power Consumption, Part 1[/URL][B] Case study: Allen & Heath GLD80 mixing console[/B] A&H’s datasheet lists the maximum power consumption of the GLD80 surface at 95w, and the AR-2412 stage box …