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APG to exhibit at CEDIA 2006
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APG stand at CEDIA 2005 |
Audio Products Group is pleased to announce that we will once again be exhibiting at the annual CEDIA (Custom Electronics Design and Installation Association) EXPO, taking place on the Gold Coast in Queensland July 27-29, 2006.
CEDIA Australasian Trade EXPO 2006 is in its 12th year and has the largest audience of businesses looking for products and services in custom electronic design, home networking, home theatre, home automation and connected home.
This year, APG will again be displaying products from Niles and Escient, and for the first time at this event we will be showcasing select products from Aiphone, TOA, Biamp and Signature Wire.
For more information please visit www.audioproducts.com.au or www.cedia.com.au.
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www.audioproducts.com.au
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Helpful Hints
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Headphones impedance
The two important electrical specifications for a pair of headphones are the impedance of the phone transducer itself and its on-the-ear sensitivity. So-called low impedance headphones may vary from 75 ohms up to about 150 ohms. Phones in this impedance range may be directly plugged into the headphone jack routinely found on recording and playback equipment. Higher impedances, such as 600 ohms, are more useful in studio installations where many units may be wired in parallel for studio monitoring applications. Headphone sensitivity is usually stated as the in-the-ear sound pressure level produced by one milliwatt (mW) of audio input. Typical sensitivity ratings of AKG headphones run from 88 dB per mW to 105 dB per mW. You can see that very little power is needed to drive a stereo headphone pair to very high listening levels.
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