This Is a Serious Set of Speakers
Kirt's Cogitations™ #10

RF Cafe University "Factoids," "Kirt's Cogitations," and "Tech Topics Smorgasbord" are all manifestations of my ranting on various subjects relevant (usually) to the overall RF Cafe theme. All may be accessed on these pages:

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This Is a Serious Set of Speakers

Think your Yamaha or Bose speakers put out the power? Well, Wyle Laboratories has a 165 dB speaker, the WAS3000, that will melt you ear wax - literally. For comparison, a food blender is about 9 dB. A 747 jet spooled up for takeoff is 130 dB. The Space Shuttle generates 150 dB. The threshold of pain for most people is around 125 dB. 150 dB can stop your heart. This technology is being explored to use in Active Noise Cancellation for around airports, where these speakers would generate sound 180° out-of-phase with aircraft noise to help dampen the level in surrounding areas.

ConductRF Precision RF Test Cables MAESTRO - RF Cafe

RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The World Wide Web (Internet) was largely an unknown entity at the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps while tying up your telephone line, and a lady's voice announced "You've Got Mail" when a new message arrived...