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2. Keyboard amplifier - Wikipedia

   en.wikipedia.org/wiki/Keyboard_amplifier

   The 50 KW has 50 watts of power, a 10" woofer and a 3.75" tweeter. It has "2-channel operation", with "Channel 1 optimized for microphones with an XLR and a 1/4" input" and "Channel 2 optimized for line level and keyboard sources with 2 phone jack inputs and 2 RCA inputs" [12] The 50 KW is wedge-shaped, so it can be used as a monitor for a ...

3. CheapTickets - Wikipedia

   en.wikipedia.org/wiki/CheapTickets

   CheapTickets is an online travel services company focusing on the leisure market, offering airline tickets, hotel and vacation rentals, rental cars, customized vacation packages, and cruises. CheapTickets was a wholly owned subsidiary of Orbitz Worldwide, Inc. , and with Expedia Inc. 's purchase of Orbitz, it is now a subsidiary of Expedia Group .

4. Piezoelectric speaker - Wikipedia

   en.wikipedia.org/wiki/Piezoelectric_speaker

   A piezoelectric speaker (also known as a piezo bender due to its mode of operation, and sometimes colloquially called a "piezo", buzzer, crystal loudspeaker or beep speaker) is a loudspeaker that uses the piezoelectric effect for generating sound. The initial mechanical motion is created by applying a voltage to a piezoelectric material, and ...

5. Tweeter - Wikipedia

   en.wikipedia.org/wiki/Tweeter

   Dome tweeter with a membrane with 25 mm diameter made from titanium; from a JBL TI 5000 loudspeaker box, c. 1997. A dome tweeter is constructed by attaching a voice coil to a dome (made of woven fabric, thin metal or other suitable material), which is attached to the magnet or the top plate via a low compliance suspension.

6. Buzzer - Wikipedia

   en.wikipedia.org/wiki/Buzzer

   A buzzer or beeper is an audio signaling device, [1] which may be mechanical, electromechanical, or piezoelectric (piezo for short). Typical uses of buzzers and beepers include alarm devices, timers, train and confirmation of user input such as a mouse click or keystroke.

7. Loudspeaker - Wikipedia

   en.wikipedia.org/wiki/Loudspeaker

   The term loudspeaker may refer to individual transducers (also known as drivers) or to complete speaker systems consisting of an enclosure and one or more drivers.. To adequately and accurately reproduce a wide range of frequencies with even coverage, most loudspeaker systems employ more than one driver, particularly for higher sound pressure level (SPL) or maximum accuracy.