There are many ways to convert electrical energy into physical motion, and therefore into sound. Voice coils and magnets work well, as we know. Electrostatic hi-fi speakers that work on resistance are considered outstanding for smoothness and detail. Tweeters based on capacitive motion have many advantages, among them extreme ruggedness.
Frequently Asked Questions
A25 - A rear firing tweeter for the PHOENIX would increase the speaker's high frequency 4p acoustic output by 3 dB for an even more uniform power response. In earlier designs I actually used such a tweeter. Because of the physical size and separation of the two tweeters - in terms of wavelength - it is impossible to obtain a simple cos(a) polar response.
Sounds Sweet Frequently Asked Questions
Nope. No tweeter is needed or desired. Tweeters reproduce hiss. Radio signals often have hiss. Sounds Sweet speakers do not reproduce hiss.
HUMAN Speakers: Frequently Asked Questions
Yes. While it maintains the original "feel" of the original concave dome, its extended frequency response and lower distortion make it a bit sweeter, and contribute to more of what they call "air" in the high end sound. I don't usually push them aggressively when people are replacing their woofers since they are already spending a bunch of money to fix their speakers. I figure they can always upgrade their tweeters later.
CarlssonPlanet.com • FAQ - Frequently asked questions
This is not a big problem. All tweeters are still available on the market except for the Peerless MT 20 HFC and MT 24 HFC that were used in OA-4, OA-5, OA-6, OD-11, OA-12, OA-14, OA-116, OA-2212, the Pop-box and the Coal scuttle. Regarding these we recommend using the Peerless CT62 instead which is a recommended upgrade anyhow. In all other cases replacing the tweeters with new ones is possible but you should consider upgrading your speakers. No we don’t.
Point of Sale Touchscreen Technologies and LCD Touchscreens ...
A Capacitive Touch screen consists of a glass panel with a charge storing or "capacitive" material coating its surface. Circuits located at corners of the screen measure the capacitance of a person touching the overlay. Frequency changes are measured to determine the X and Y coordinates of the touch command. Capacitive type touch screens are very durable and have high clarity.
The What, How and Why?
No. It is often claimed that super-tweeters improve detail and definition. For a conventional system this might possibly be true. However, the exceptional detail and phase coherency provided by JORDAN Wide Band Single Cone drivers could only be impaired the intrusion of a spatially displaced high frequency radiator having characteristics totally incompatible with those of a wide band cone driver.
touchscreen monitors faq
Those types of touch screens cannot be activated by sharp object, not even the fingernails. Therefore, there is much less chance to get scratched by the users. However, they still can be scratched, and once that happens, the screens will no longer function correctly.
Those types of touch screens cannot be activated by hard object, not even the fingernails. Therefore, there is much less chance of being scratched by the users. However, they still can be scratched, and once that happens, the screens will no longer function correctly.
Pericom - Frequently Asked Questions (FAQs) - By Product Fam...
When the capacitive load is heavy, higher than 50pf, the RC effect generated by the driver's output impedance, and the capacitive load will override the transmission line effect causing slow edges but will also help to absorb or averaging the overshoot and undershoot. Therefore reduce or even cancel the series termination resistance at the output of the driver from its matching value is essential for faster system time.
touchcomputer.net - Touchcomputers Frequently Asked Question...
Resistive - it is pressure sensitive and requires a only a soft touch to active a touch point. It has two sheets of hardened acrylic plastic separated by invisible spacer bubbles which compress upon contact. See the "How does Touchscreen systems work?" question.