
Youngstown State University Department of Electrical - mh
... systems because of the requirements to produce electrical arcing. However, these devices offer a unique audio experience that is very desirable and would be marketable if cost and circuit complexity could be reduced. Some sources estimate up $300 dollars in parts if you were to construct the device ...
... systems because of the requirements to produce electrical arcing. However, these devices offer a unique audio experience that is very desirable and would be marketable if cost and circuit complexity could be reduced. Some sources estimate up $300 dollars in parts if you were to construct the device ...
Current Source Driving High-Efficiency / Full Range - DIY
... generates the highest amount of force (acceleration) for a given amount of electrical current. In other words, we need an expensive motor. \ The other half of the equation is the cone assembly attached to the voice coil. In contrast to the fine motor engineering, here we start seeing more of the bla ...
... generates the highest amount of force (acceleration) for a given amount of electrical current. In other words, we need an expensive motor. \ The other half of the equation is the cone assembly attached to the voice coil. In contrast to the fine motor engineering, here we start seeing more of the bla ...
Current Source Driving High-Efficiency / Full Range Loudspeakers
... generates the highest amount of force (acceleration) for a given amount of electrical current. In other words, we need an expensive motor. \ The other half of the equation is the cone assembly attached to the voice coil. In contrast to the fine motor engineering, here we start seeing more of the bla ...
... generates the highest amount of force (acceleration) for a given amount of electrical current. In other words, we need an expensive motor. \ The other half of the equation is the cone assembly attached to the voice coil. In contrast to the fine motor engineering, here we start seeing more of the bla ...
firecom acm-32
... activated, the LED will illuminate “white” if no source is connected or the color of the source with the highest priority. In AND mode the LED will be OFF if all speakers of that group are inactive. Also, in AND mode the LED will illuminate with the source color if and only if all speakers of that g ...
... activated, the LED will illuminate “white” if no source is connected or the color of the source with the highest priority. In AND mode the LED will be OFF if all speakers of that group are inactive. Also, in AND mode the LED will illuminate with the source color if and only if all speakers of that g ...
The Case for Active Speakers - Precision Transducer Engineering
... two amplifiers. I note here that there will be much less intermodulation distortion in the active speaker’s amplifiers. The standard test of 60 Hz and 7 kHz will produce virtually no distortion because the crossover filters will not allow both frequencies to enter either amplifier simultaneously. An ...
... two amplifiers. I note here that there will be much less intermodulation distortion in the active speaker’s amplifiers. The standard test of 60 Hz and 7 kHz will produce virtually no distortion because the crossover filters will not allow both frequencies to enter either amplifier simultaneously. An ...
XM-N1004 4/3/2 Channel 1000W Amplifier
... Other amps thermal protection circuits will simply shut down until they're cool. Sony's Automatic Thermal Control circuit actually lowers the output levels to reduce amplifier temperature so your music continues to play. ...
... Other amps thermal protection circuits will simply shut down until they're cool. Sony's Automatic Thermal Control circuit actually lowers the output levels to reduce amplifier temperature so your music continues to play. ...
350W Subwoofer Amplifier
... Thanks for purchasing this 250W Subwoofer Amplifier. The amplifier is designed for home theater application. It features an extension (or rumble) filter set at 12hz with Q=0.7. In addition, the amplifier is packed with other standard features such as both speaker level and line level inputs, high-pa ...
... Thanks for purchasing this 250W Subwoofer Amplifier. The amplifier is designed for home theater application. It features an extension (or rumble) filter set at 12hz with Q=0.7. In addition, the amplifier is packed with other standard features such as both speaker level and line level inputs, high-pa ...
Issue 4 - Mapletree Audio Design
... particular speaker driver) which feed separate power amplifiers which in turn feed individual speakers in a two or threeway speaker system. The advantages are that you can precisely control the signal to each driver in terms of crossover frequencies and slopes and tailor the characteristics of each ...
... particular speaker driver) which feed separate power amplifiers which in turn feed individual speakers in a two or threeway speaker system. The advantages are that you can precisely control the signal to each driver in terms of crossover frequencies and slopes and tailor the characteristics of each ...
ALIGNMENT DATA T/S vs
... continuous current and the ETL™ loading the driver at constant pressure. The slight peak at box resonance on the red graph indicates a slight impedance change due to increased port resistance at box resonance. Below this small peak the impedance remains resistive and with the driver isolated from th ...
... continuous current and the ETL™ loading the driver at constant pressure. The slight peak at box resonance on the red graph indicates a slight impedance change due to increased port resistance at box resonance. Below this small peak the impedance remains resistive and with the driver isolated from th ...
Download T3000 Datasheet
... The T3000 Frequency Relay is designed for frequency monitoring on generators, bus bars or other distribution systems. The T3000 consists of two circuits, one circuit for over frequency and one for under frequency monitoring. Each circuit has individual settings for frequency levels and time delays. ...
... The T3000 Frequency Relay is designed for frequency monitoring on generators, bus bars or other distribution systems. The T3000 consists of two circuits, one circuit for over frequency and one for under frequency monitoring. Each circuit has individual settings for frequency levels and time delays. ...
1 Components of a medium size PA
... Another popular type of microphone is the condenser, this uses a pair of small foil plates one fixed to the body of the microphone and the other free to move in response to sound waves, using a small piece of electronics a charge is placed on the plates and the resulting voltage across the plates me ...
... Another popular type of microphone is the condenser, this uses a pair of small foil plates one fixed to the body of the microphone and the other free to move in response to sound waves, using a small piece of electronics a charge is placed on the plates and the resulting voltage across the plates me ...
10m 10 100G 1u 1M 10f 1p 100 10M
... 4) You have biased the amplifier below with a particular input overdrive voltage Vov. Both devices are in saturation, and the quadratic model is appropriate. The low frequency gain is 1000. Cgs1=1pF, Cgd1=0.1pF. ...
... 4) You have biased the amplifier below with a particular input overdrive voltage Vov. Both devices are in saturation, and the quadratic model is appropriate. The low frequency gain is 1000. Cgs1=1pF, Cgd1=0.1pF. ...
Stereo 416 and PAT-5 Bifet Brochure, Page 2
... preamplifier whose performance passed beyond the limits of the (then) current state of the art. It sounded so much better than almost anything else at any price that virtually every other manufacturer has evaluated it. It became the impetus for competitors to go back to their laboratories. Dynaco's ...
... preamplifier whose performance passed beyond the limits of the (then) current state of the art. It sounded so much better than almost anything else at any price that virtually every other manufacturer has evaluated it. It became the impetus for competitors to go back to their laboratories. Dynaco's ...
Speaker Power Requirements
... bass boost, low-frequency feedback, or any combination of these. After a while, the moving parts of the woofer will be so strained that possible misalignment of the voice coil and consequent rubbing could occur. In especially severe cases, the voice coil may be forced out of the gap and hang up on t ...
... bass boost, low-frequency feedback, or any combination of these. After a while, the moving parts of the woofer will be so strained that possible misalignment of the voice coil and consequent rubbing could occur. In especially severe cases, the voice coil may be forced out of the gap and hang up on t ...
Instruction manual
... Thank you for choosing the Citronic QP-series quad power amplifiers as part of your sound reinforcement system. These high output amplifiers are designed to offer high quality, dependable service for mobile and installed systems. Please read this manual fully and follow the instructions to achieve t ...
... Thank you for choosing the Citronic QP-series quad power amplifiers as part of your sound reinforcement system. These high output amplifiers are designed to offer high quality, dependable service for mobile and installed systems. Please read this manual fully and follow the instructions to achieve t ...
TL880P Engineering Data Sheet 575 KB | December 26, 2007
... TL88OP, and is responsible for the higher sensitivity and narrower vertical beamwidth (with the system long axis vertical) relative to similar single-woofer systems. In addition, two TL880P’s can be used side-by-side and their combined performance will be different from that of a single TL880P in th ...
... TL88OP, and is responsible for the higher sensitivity and narrower vertical beamwidth (with the system long axis vertical) relative to similar single-woofer systems. In addition, two TL880P’s can be used side-by-side and their combined performance will be different from that of a single TL880P in th ...
UPA-1P : Compact Wide Coverage Loudspeaker
... power output, low distortion, and consistent polar response in a compact, vented two-way enclosure. The loudspeaker features a 12-inch cone low-frequency driver and a 3-inch-diaphragm compression driver coupled with a 100-degree horizontal by 40-degree vertical constant-Q horn. The versatile UPA-1P ...
... power output, low distortion, and consistent polar response in a compact, vented two-way enclosure. The loudspeaker features a 12-inch cone low-frequency driver and a 3-inch-diaphragm compression driver coupled with a 100-degree horizontal by 40-degree vertical constant-Q horn. The versatile UPA-1P ...
Classic Vitalizer
... when spatially induced differences for each channel need to be taken into consideration. The Surround Processor (used to increase the perceived sense of loudness of a mix while simultaneously enhancing the feeling of space) always works on both channels and is functionally independent of all other e ...
... when spatially induced differences for each channel need to be taken into consideration. The Surround Processor (used to increase the perceived sense of loudness of a mix while simultaneously enhancing the feeling of space) always works on both channels and is functionally independent of all other e ...
Velocity-dependent microphones
... Sound makes the diaphragm vibrate and vary the pressure on the carbon granules between the movable carbon dome, which is attached to the diaphragm, and the fixed carbon cup at the back. An increase of pressure squeezes the granules together and reduces their electrical resistance. Reduced pressure i ...
... Sound makes the diaphragm vibrate and vary the pressure on the carbon granules between the movable carbon dome, which is attached to the diaphragm, and the fixed carbon cup at the back. An increase of pressure squeezes the granules together and reduces their electrical resistance. Reduced pressure i ...
Trigonometric functions and sound
... enough to the truth that you can learn from it!) The point is that you can take a sound and think of it in terms of the different frequencies and amplitudes that it is made up of. The graph of a k versus k is called the frequency spectrum of the sound. It shows graphically which frequencies are pre ...
... enough to the truth that you can learn from it!) The point is that you can take a sound and think of it in terms of the different frequencies and amplitudes that it is made up of. The graph of a k versus k is called the frequency spectrum of the sound. It shows graphically which frequencies are pre ...
LM358 100 GAIN OPERATIONAL AMPLIFIER MODULE
... LM358 is a type of operational amplifier. It consists of two independent, highgain, frequency-compensated operational amplifiers designed to operate from a single supply over a wide range of voltages. ...
... LM358 is a type of operational amplifier. It consists of two independent, highgain, frequency-compensated operational amplifiers designed to operate from a single supply over a wide range of voltages. ...
Gauss Coil Gun
... Most are driven off of AC power making portability impossible. DC designs operate at a much reduced power. All have a very low rate of fire Most are dangerous to use All are very fragile Capacitors used are expensive and heavy ...
... Most are driven off of AC power making portability impossible. DC designs operate at a much reduced power. All have a very low rate of fire Most are dangerous to use All are very fragile Capacitors used are expensive and heavy ...
STA-1400 - Amplifier
... small factory building ... it featured many windows, a concrete floor and several tiled surfaces, allowing the high frequencies to show no mercy ... however, with the precise equalizers of the DSM-260, we were able to tame these very quickly ... the unit allows to optimise the sound quickly and intu ...
... small factory building ... it featured many windows, a concrete floor and several tiled surfaces, allowing the high frequencies to show no mercy ... however, with the precise equalizers of the DSM-260, we were able to tame these very quickly ... the unit allows to optimise the sound quickly and intu ...
audio amplifier - Kaushik Science Projects
... This is a very useful and simple circuit diagram for amplifying weak signal from a capacitive condenser microphone. You can use this circuit for sound sensing applications and some automatic robotic sensors. We have already posted an efficient audio amplifier circuit using 6283 IC, it is somewhat co ...
... This is a very useful and simple circuit diagram for amplifying weak signal from a capacitive condenser microphone. You can use this circuit for sound sensing applications and some automatic robotic sensors. We have already posted an efficient audio amplifier circuit using 6283 IC, it is somewhat co ...
Loudspeaker

A loudspeaker (or loud-speaker or speaker) is an electroacoustic transducer; a device which converts an electrical audio signal into a corresponding sound. The first primitive loudspeakers were invented during the development of telephone systems in the late 1800s, but electronic amplification by vacuum tube beginning around 1912 made loudspeakers truly practical. By the 1920s they were used in radios, phonographs, public address systems and theatre sound systems for talking motion pictures.The most widely-used type of speaker today is the dynamic speaker, invented in 1925 by Edward W. Kellogg and Chester W. Rice. The dynamic speaker operates on the same basic principle as a dynamic microphone, but in reverse, to produce sound from an electrical signal. When an alternating current electrical audio signal input is applied through the voice coil, a coil of wire suspended in a circular gap between the poles of a permanent magnet, the coil is forced to move rapidly back and forth due to Faraday's law of induction, which causes a diaphragm (usually conically shaped) attached to the coil to move back and forth, pushing on the air to create sound waves. Besides this most common method, there are several alternative technologies that can be used to convert an electrical signal into sound. The sound source (e.g., a sound recording or a microphone) must be amplified with an amplifier before the signal is sent to the speaker.Speakers are typically housed in an enclosure which is often a rectangular or square box made of wood or sometimes plastic. Where high fidelity reproduction of sound is required, multiple loudspeakers may be mounted in the same enclosure, each reproducing a part of the audible frequency range (picture at right). In this case the individual speakers are referred to as ""drivers"" and the entire unit is called a loudspeaker. Miniature loudspeakers are found in devices such as radio and TV receivers, and many forms of music players. Larger loudspeaker systems are used for music, sound reinforcement in theatres and concerts, and in public address systems.