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Great Talk on Design of Benchmark AHB2 and THX Technology

trl

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#21
You all can band together and fund a $25,000 power cube load anytime you like. :)
You already have a powerful pair of speakers, so an isolation headphones should be enough:

Of course, entire equipment might be required, depending on what you need to test that day. :)
 

typericey

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#23
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#24
Did the THX guy say (25:01) "pianists should wear earplugs because a piano puts out 126dB SPL" ??

That's not right. A piano, from the player's perspective, might reach 100-105dB if played at the absolute loudest levels.

That said, there are real world sources that can reach enormous SPL. For instance, an fff trumpet blast at the bell can reach over 150dB SPL. And today's boom car systems routinely reach 155dB or more of low frequency pulse acoustics, measured inside the vehicle. Thankfully, 155dB of 40Hz pulses won't hurt ears. A 150dB trumpet -- that's a different story.
 
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