PO Box 716, Amherst, NH 03031-0716
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PO Box 716, Amherst, NH 03031-0716 |
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Acoustic Devices |
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To order, click the ITEM NUMBER to add to your shopping cart.
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These devices are intended to allow the user to hear sounds at a distance that would be inaudible to the unaided ear. The parabolic mikes are excellent for nature listening, especially for birds. Law enforcement uses these devices for surveillance.
Parabolic mics use a large area to gather sound energy and then focus it to a sensitive mike element and amplifier to further enhance performance. Parabolic mics gather roughly 3 times more sound than shotgun mics, but they also cover a wider area and therefore capture more background noise and aren't as good at isolating sounds from a noisy background. Shotgun mics are more directional and are often used for sound gathering in action movies. They also are used for surveillance by law enforcement. Shotgun mics use a sensitive amplifier with a series of resonant tubes or a single tube with baffles. |
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Directional device allows you to hear and pin point mechanical and electrical sounds such as leaking gases, air, corona, motor frictional noises etc.
Hear bats, insects and other sounds of mother nature - even beading water!
View/Download Free Instructions (Adobe PDF) HT9
- Plans (By Download - $4.00) .................................................$10.00
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Great Low Cost Hearing Aid!
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Enhances Normal Hearing 3 To 4 Times
Use for courtesy lowering of TV volume, etc.. Detect rattles, mechanical abnormalies, leaking gases, air, electrical corona. Excellent safety aid for lab or shop.
This is not FDA apparoved as a hearing aid. CYBEREAR - Ready to Use ......................$19.95 |
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TURBO - Ready to Use ................$19.95 |
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Flashlight sized electronics is interfaced with a 12" lightweight plastic parabolic reflector providing over 30 db of pick up gain! Includes headsets.
BIOEAR10 - Ready to use .....................$159.95
20" Parabolic MicrophoneHunters, trackers, nature enthusiasts, and special events!Hear conversations up to 300 yards! Use satellite technology to focus distant sounds to an ultra high gain/low noise amplifier with voice enhancement system includes separate volume high performance headphones.
PM60 - Assembled ..................................................$459.95 PM60 - Rental ...........................................................$459.95 ($75 rental / 30 days) |
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WM5K - Kit/Plans .......................................................$49.95
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The advantage of shotgun microphones is their ability to "hone in" on a sound source and reduce the amount of background noise. Many variables effect the transmission of sound at long distances -- whether the source is facing you, the air density and temperature, the amount of background noise, and of course the source volume. The ability to hear your target can be greatly effected by any one of these. |
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Best Performance
SMAT815R - Best Shotgun Mic .............................$499.95 |
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Build Your Own
Experimental device, when properly constructed allows sounds to be heard through windows, pick out whispers in a crowd, etc.
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Noise Curtain GeneratorNeat little circuit plugs into existing stereo, radio recorder and produces a band of noise containing a wide spectrum of frequencies [white noise]. Jams microphones - Provides a soothing relaxing sound.NC4 - Plans (By Download - $3.00) ....$5.00
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Please direct inquiries and technical questions/assistance through email; you should get a response within 1 business day.
But before you do this, read the item description completely. Chances are good that you'll find the answers there.
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PO Box 716, Amherst, NH 03031-0716 |
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