Speaker placement is more important than many realize. You can’t just drop speakers on a table or shove them against a wall; you have to find the right spot in the room and the right position in the area where you plan to leave them. Acoustics Are Weird When you place speakers, remember that sound […]
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Lay cone face down on table topput top of voice coil onto voice coil opening of coneuse marker and drawer circle around outside of voice coil(you can also mark the inside of the voice coil)use a strait edge blade and cut cone inside the outer marked circle (if you marked inside and outside of voice coil, cut […]
A loudspeaker, or simply speaker, is an electromechanical transducer which converts an electrical signal into sound. The term loudspeaker is used to refer to both the device itself, and a complete system consisting of one or more loudspeaker drivers (as the individual units are often called) in an enclosure. One problem with loudspeakers is that the […]
The Ohm model “F” speakers invented by Lincoln Walsh feature a single driver mounted vertically as though it were firing downwards into the top of the cabinet, but instead of the normal almost flat cone, having a very-much extended cone entirely exposed at the top of the speaker. This turned normal speaker driver design problems on their head; whereas […]
Piezoelectric transducers, frequently used as beepers in watches etc., are often used as tweeters in cheap speaker systems. Computer speakers and portable radios are common examples. Piezos have several advantages over conventional loudspeakers when applied to such purposes:
Actual digital speaker driver technology not only exists, but is quite mature, having been experimented with extensively by Bell Labs as far back as the 1920s. The design of these is disarmingly simple; the least significant bit drives a tiny speaker driver, of whatever physical design seems appropriate; a value of “1” causes this driver to be […]
A transducer can be made to project a narrow beam of ultrasound that is powerful enough, (100 to 110 dBSPL) to change the speed of sound in the air that it passes through. The ultrasound is modulated– it consists of an audible signal mixed with an ultrasonic frequency. The air within the beam behaves in a nonlinear […]
Knowing Cone Drivers: How They Work, Understanding Key Data & Specs What’s really going on with woofers, and what are the important factors in how they perform as well as how they impact the performance of loudspeaker systems (Editor’s Note: Eminence Speaker LLC also contributed to this report.) Cone drivers (also referred to as woofers and transducers in this article) […]
The key working components of a loudspeaker are shown in the diagram below. When an electricalcurrent passes through a wire coil (the voice coil) in a magnetic field, it produces a force which varies with the current applied. The cone, connected to the voice coil, moves in and out, creating waves of high and low air pressure. The coil […]
