Years ago, only car stereo makers would advertise “2,000 Watts Of Earthshaking Power!” But with the recent shift to switching power supply amplifier topology, we’re now seeing this with many pro-oriented products.
What’s behind the hype? And what about properly matching power amplifiers and loudspeakers? Answers start by focusing on the fundamental unit of measure in audio, the watt.
In ” The Power Amplifier-Loudspeaker Relationship,” Chapter 2 of the new PSW Expert Series on the essentials of audio amplification, author John Murray clearly defines wattage and what it means in terms of powering professional loudspeakers. Topics he covers include:
- Meaningful calculation of watts (Ohm’s Law)
- Power handling capacity
- Headroom standards
- Short-term (instantaneous-peak) versus long-term ratings
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Author John Murray is a 35-year industry veteran who has worked for several leading manufacturers and has also presented two published AES papers as well as chaired numerous SynAudCon workshops. He is currently the principal of Optimum System Solutions, a consulting firm based in Colorado.
The ProSoundWeb Expert Series on Power Amplifiers is presented by Dynacord and features top authors from ProSoundWeb and Live Sound International magazine. All future chapters will be available for free download on PSW.