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Network of loudspeakers connected using transformers
Constant-voltage speaker systems refer to networks of loudspeakers which are connected to an audio amplifier using step-up and step-down transformers to
Constant-voltage speaker system
Constant-voltage_speaker_system
Topics referred to by the same term
Constant voltage may refer to: Constant-voltage speaker system, a distributed speaker system Voltage source, electrical power source that regulate voltage
Constant_voltage
Electronics component
long runs of wire to interconnect speakers and amplifiers, a constant-voltage speaker system may be used to reduce losses in the wiring. Thicker wires reduce
Speaker_wire
Converts an electrical audio signal into a corresponding sound
loudspeaker (commonly referred to as a speaker or, more fully, a speaker system) is a combination of one or more speaker drivers, an enclosure, and electrical
Loudspeaker
Types of electrical transformer
loudspeaker voltages. This application is common in public address applications. Such circuits are commonly referred to as constant-voltage speaker systems. Such
Transformer_types
American audio equipment manufacturer
breakthrough product by commercial sound system contractors seeking to power their constant-voltage speaker systems without the frequency response limitations
Crown_International
Impedance matching circuit element
impedance matching. A speaker L pad is a special configuration of rheostats used to control volume while maintaining a constant load impedance on the
L_pad
Electronic component
where τ0 = RC is the time constant of the system. As the capacitor reaches equilibrium with the source voltage, the voltages across the resistor and the
Capacitor
Sound playback device
operation, the diaphragm must operate with a constant charge on its surface, rather than with a constant voltage. This is accomplished by either or both of
Electrostatic_loudspeaker
Representation of a signal as a rectangular wave with varying duty cycle
has been used to play back PCM digital sound on the PC speaker, which is driven by only two voltage levels, typically 0 and 5 V. By carefully timing the
Pulse-width_modulation
Audio amplifier based on switching
interference, resulting in the final analog output current and voltage to be sent to the speaker. Switching amplifier circuits corresponding to what is now
Class-D_amplifier
Manufacturing styles of an electronic device
^{-t/\tau _{\mathrm {s} }},} With stored DC voltage U 0 {\displaystyle U_{0}} and self-discharge constant τ s = R i n s ⋅ C {\displaystyle \tau _{\mathrm
Capacitor_types
High-capacity electrochemical capacitor
capacitor. The voltage has to be applied and after the constant current/constant voltage power supply has achieved the rated voltage, the capacitor must
Supercapacitor
Constant-voltage speaker system Installation Europe: Klotz Digital equipment installed at Frankfurt Airport T1 Installation Europe: Landmark system sale
Varizone
Pictogram used to represent various electrical and electronic devices or functions
Solar (photovoltaic) cell DC voltage source Controlled DC voltage source Current source Controlled current source AC voltage source It is very common for
Electronic_symbol
System for digital control of model railways
standard, and the Märklin Digital proprietary system. The US Rail-Lynx system provides power with a fixed voltage to the rails while commands are sent digitally
Digital_Command_Control
Low frequency audio feedback
frequency (squegging) due to the power supply voltage sagging as oscillations build up (the long time constant coming from the power supply reservoir capacitor)
Motorboating_(electronics)
Electronic device/component that increases the strength of a signal
electronic device that can increase the magnitude of a signal (a time-varying voltage or current). It is a two-port electronic circuit that uses electric power
Amplifier
Two-terminal electronic component
equation given above, it might appear that the voltage has a positive temperature coefficient (at a constant current), but usually the variation of the reverse
Diode
Electrical configuration allowing electricity to cross between grounded devices
the system's speakers. In digital systems, which commonly transmit data serially (RS-232, RS-485, USB, FireWire, DVI, HDMI etc.) the signal voltage is
Ground_loop_(electricity)
Peak divided by the Root mean square (RMS) of the waveform
"The standard deviation of a Gaussian noise voltage is the root-mean-square or rms value of the voltage." Noise: Frequently Asked Questions - "Noise
Crest_factor
Type of electrical transformer
applications, tapped autotransformers are used to adapt speakers to constant-voltage audio distribution systems, and for impedance matching such as between a low-impedance
Autotransformer
Adjusting input/output impedances of an electrical circuit for some purpose
or voltage bridging is often used. In older audio systems (reliant on transformers and passive filter networks, and based on the telephone system), the
Impedance_matching
Electronic filter circuitry used in loudspeakers
components capable of good performance at the high currents and voltages at which speaker systems are driven are hard to make. Inexpensive consumer electronics
Audio_crossover
Type of electronic circuit or optical filter
circuit which removes frequency components from a signal (time-varying voltage or current) applied to its input port. A high-pass filter attenuates frequency
High-pass_filter
Electronic amplifier that converts weak signal into strong signal
current is drawn from the output there is minimal change in the output voltage). It is used to boost the signal strength to drive the cable to the main
Preamplifier
System allowing audio playback across many rooms
impedance-matching transformers, or by using constant-voltage transformers (often, 70 volts). These systems are commonly employed in retail environments
Multi-room_audio
First production electrostatic loudspeaker
at substantially lower voltages – operating voltages are specified as 6 KV for the bass and 1.5 KV for the treble. The speaker needs to be plugged into
Quad Electrostatic Loudspeaker
Quad_Electrostatic_Loudspeaker
Device to couple energy between circuits
the induced voltage effect in any coil due to a changing magnetic flux encircled by the coil. Transformers are used to change AC voltage levels, such
Transformer
Vacuum tube used to display images
anode voltage and the electron beam current and in practise the latter is constant, while the former is controlled by varying the difference in voltage between
Cathode_ray_tube
Characteristic quality of sounds from vacuum tube amplifiers
(it cannot keep its output voltage perfectly constant when the speaker load varies) and because the phase of the speaker load can change the stability
Tube_sound
Technical specifications and detailed information on the valve audio amplifier
operating as a common grid and thus acting as a voltage regulator, providing a nearly constant anode voltage to the other, which operates as a common cathode
Valve audio amplifier technical specification
Valve_audio_amplifier_technical_specification
Device used to simulate an electrical load
electronic loads supply several operating modes, in most cases constant current, voltage, power and resistance. Nowadays, the equipment may be controlled
Dummy_load
Device for receiving radio transmissions
volume of the sound from the speaker would vary drastically. Without an automatic system to handle it, in an AM receiver, constant adjustment of the volume
Radio_receiver
Loop that increases an initial effect
in public address systems: the microphone picks up sound from its own loudspeakers, amplifies it, and sends it through the speakers again. Positive feedback
Positive_feedback
Devices used to warn pedestrians and drivers of incoming trains at level crossings
connecting a constant-current alternating current source to the rails, and measuring the voltage which results. By Ohm's law, the voltage measured will
Level_crossing_signals
Component used for magnetic tape playback and recording
moves at a constant speed over an electromagnet. Since the moving tape is carrying a changing magnetic field with it, it induces a varying voltage across
Tape_head
Fixed-value capacitor using ceramic
^{-t/\tau _{\mathrm {s} }},} With the stored DC voltage U 0 {\displaystyle U_{0}} and the self-discharge constant τ s = R i n s ⋅ C {\displaystyle \tau _{\mathrm
Ceramic_capacitor
Type of loudspeaker
electrostatic speaker without a transformer is to connect the plates of a push-pull vacuum tube amplifier directly to the stators, and the high voltage supply
Tweeter
Smart material systems
inflated with a constant volume of air, then the stiffness of the elastomer can be varied by applying electrical load; hence resulting in voltage-controlled
Dielectric_elastomers
Device that converts sound into an electrical signal
is practically constant and the voltage across the capacitor changes instantaneously to reflect the change in capacitance. The voltage across the capacitor
Microphone
Device for electrically amplifying the power of an electrical radio frequency signal
{\displaystyle k_{B}TB} , where kB is the Boltzmann constant and B the bandwidth. Correspondingly, the voltage noise of a resistance R into an open circuit is
Valve_RF_amplifier
Uses of capacitors in daily life
or in a large utility electrical substation. In high-voltage direct current transmission systems, power factor correction capacitors may have tuning inductors
Applications_of_capacitors
Measure of change in a periodic variable
choosing rectifiers for power supplies, or when estimating the maximum voltage that insulation must withstand. Some common voltmeters are calibrated for
Amplitude
consoles and gradually specialized in car hi-fi speakers, amplifiers, audio-video equipment, security systems and related accessories. Phonocar products are
Phonocar
Set of electromechanical parameters
{test}}/I} . A second method is the constant voltage measurement, where the driver is excited by a constant voltage, and the current passing through the
Thiele/Small_parameters
Type of electronic amplifier
feedback is derived below in the case of a voltage amplifier with voltage feedback. Without feedback, the input voltage V′in is applied directly to the amplifier
Negative-feedback_amplifier
American-Canadian electrical engineer
Constant-voltage transmission; a discussion of the use of synchronous motors for eliminating variation in voltage in electric power systems. Wiley. 1915
Herbert_Bristol_Dwight
Device that converts a digital signal into an analog signal
rely on a constant reference voltage or current to create their output value. Alternatively, a multiplying DAC takes a variable input voltage or current
Digital-to-analog_converter
Disturbance in an electrical circuit due to external sources of radio waves
natural sources generate changing electrical currents and voltages that can cause EMI: ignition systems, cellular network of mobile phones, lightning, solar
Electromagnetic_interference
Electronic method of transmitting information with a carrier wave
voltage of the RF amplifier is modulated with the audio signal. The audio power requirement is 50 percent of the RF-carrier power. Heising (constant-current)
Amplitude_modulation
Electric charge generated in certain solids due to mechanical stress
detection of sound, piezoelectric inkjet printing, generation of high voltage electricity, as a clock generator in electronic devices, in microbalances
Piezoelectricity
Diode that emits light from an organic compound
researchers patented a method of preparing electroluminescent cells using high-voltage (500–1500 V) AC-driven (100–3000 Hz) electrically insulated one millimetre
OLED
Home video game console
circumvent the console's authentication system. Most of these companies created circuits that use a voltage spike to temporarily disable the 10NES chip
Nintendo_Entertainment_System
Resistance to magnetic flux
and is analogous to Ohm's law with resistance replaced by reluctance, voltage by MMF and current by magnetic flux. Permeance is the inverse of reluctance:
Magnetic_reluctance
Concept in electrical and audio engineering
handset off-hook etc.). The other end of one coil is connected to a supply voltage and the second coil is connected to ground. A telephone exchange relay
Nominal_impedance
open-circuit voltage about 3.6 volts. Manufacturers may have their own part numbers for IEC standard size cells. The capacity listed is for a constant resistance
List_of_battery_sizes
Type of sensor
dimension. A piezoelectric transducer can be modeled as a voltage source with a filter. The voltage V at the source is directly proportional to the applied
Piezoelectric_sensor
Electrical wire or other conductor made of copper
material from constant expansions and contractions under varying load conditions. This process has adverse effects on electrical systems: terminations
Copper_conductor
Wireless communications systems using radio frequencies
high voltage power supplies were inefficient, and the filaments of the vacuum tubes added to current demands, taxing vehicle electrical systems. Sometimes
Mobile_radio
Model railway control system
With analog systems, fine control of locomotives requires knowledge of the individual characteristics; gradients and curves require constant adjustment
Märklin_Digital
Process performed by firmware or software routines
tests—to verify hardware integrity before enabling actuators, high-voltage systems, or motor drives. Because dedicated user interfaces are often absent
Power-on_self-test
Closed loop path containing a magnetic flux
equivalent of Kirchhoff's voltage law for pure source/resistance circuits. Specifically, whereas KVL states that the voltage excitation applied to a loop
Magnetic_circuit
Device put on or in the ears that plays sound
often interchangeably. As the output voltage (but not power) of a headphone amplifier is essentially constant for most common headphones, dB/mW is often
Headphones
Serial communication bus
bidirectional and pulled up with resistors. Typical voltages used are +5 V or +3.3 V, although systems with other voltages are permitted. The I2C reference design
I2C
Electronic component
current can range from less than a hundred mA at rated voltage up to a few hundred mA at lower voltages. The device can be said to have latching functionality
Resettable_fuse
WWII British balloon attack on Germany
with hydrogen and carrying either a trailing steel wire to damage high-voltage power lines by producing a short circuit, or incendiary devices to start
Operation_Outward
Type of actuator
adverse effects in actuator performance. It is found that for a constant peak-to-peak voltage the maximum velocity produced by the actuator depends directly
Plasma_actuator
Process where information about current status is used to influence future status
the behavior of a system can be altered to meet the needs of an application; systems can be made stable, responsive or held constant. It is shown that
Feedback
AMD computing architecture
An AI engine is the computational core of artificial intelligence systems and is used for AI inference. It can also refer to a specific computing architecture
AI_engine
American audio engineer
Grand was the crown jewel of Bozak speaker systems since its introduction in 1951. This refrigerator-sized speaker system originally contained four B-199
Rudy_Bozak
information manual : (TC AIM). Transport Canada. OCLC 1083332661. "CNS/ATM Systems" (PDF). International Civil Aviation Organization. "FAR/AIM Series". Aviation
List of aviation, avionics, aerospace and aeronautical abbreviations
List_of_aviation,_avionics,_aerospace_and_aeronautical_abbreviations
supply voltage adapters Air conditioning (AC) Audio technology – loudspeakers, speaker drivers, high-fidelity (hi-fi) equipment, public address system, electronic
List_of_MOSFET_applications
Electric organ
name changes, as a Leslie speaker, after its inventor Donald J. Leslie. The typical Leslie system is an integrated speaker/amplifier combination in which
Hammond_organ
Form of electric spacecraft propulsion
series of protruding cusps, or Taylor cones. At a sufficiently high applied voltage, positive ions are extracted from the tips of the cones. The electric field
Ion_thruster
received signal. In repeater systems, the voted signal is retransmitted. In simplex systems, it goes to the console speaker at the base station. Audio from
Diversity_combining
Display that uses the light-modulating properties of liquid crystals
effect of a TN device in the voltage-on state is far less dependent on variations in the device thickness than that in the voltage-off state. Because of this
Liquid-crystal_display
Series of CRT televisions and monitors manufactured by Sony from 1968 to 2008
useful picture. The system was highly dependent on the relative angles of the beams between the three guns, which required constant adjustment by the user
Trinitron
Electrical or optical connectors for carrying audio and video signals
or optical equipment include the types and numbers of wires required, voltages, frequencies, optical intensity, and the physical design of the connectors
Audio and video interfaces and connectors
Audio_and_video_interfaces_and_connectors
Device for acoustic measurements
micropascals. A microphone is distinguishable by the voltage value produced when a known, constant root mean square sound pressure is applied. This is
Sound_level_meter
Transmission of information electromagnetically
Another advantage of digital systems over analogue is that their output is easier to store in memory, i.e., two voltage states (high and low) are easier
Telecommunications
Device that emites acoustic radiation
common sound amplification system with a microphone, amplifier and speaker. When the microphone is in front of the speaker, we hear an annoying whistle
Sound amplification by stimulated emission of radiation
Sound_amplification_by_stimulated_emission_of_radiation
Elapsed fraction of a cycle of a periodic function
quadrature components of a composite signal or even different signals (e.g., voltage and current). If the frequencies are different, the phase difference φ
Phase_(waves)
Type of computer disk storage drive
the performance of the optical pickup system. Because half-height demand much more electrical power and a voltage of 12 V DC, while slim optical drives
Optical_disc_drive
Guitar amplifier series
IIC+ was produced for little more than a year. The Mark series, with its constantly-expanding feature set, maintained its status as Mesa/Boogie's flagship
Mesa/Boogie_Mark_Series
Line of continuous glucose monitors
electrode that reacts with glucose, a reference electrode that maintains a constant voltage, and a counter electrode that completes the electrical circuit. The
Dexcom_CGM
Competition between proprietary formats in the same market
The systems initially ran on direct current (DC) and alternating current (AC), with low-voltage DC used for interior lighting and high-voltage DC and
Format_war
Single, usually cylindrical, flexible strand or bar or rod of metal
High-voltage cable Barbed wire Chicken wire Razor wire Tinsel wire Wollaston wire Swiger Coil Systems. "Edgewound Coils". Swiger Coil Systems, A Wabtec
Wire
Alstom electric multiple unit operated by the Warsaw Metro
main inverter circuit such as an input filter with choke, over-voltage protection system, keys consisting of three IGBT modules connected in parallel,
Alstom_Metropolis_98B
British rock guitarist (born 1948)
Sabbath in 1968, and was the guitarist, leader, main composer, and only constant member during the band's existence for over fifty years, playing guitar
Tony_Iommi
American sitcom (1963–1966)
imperfections, someone like Martin. (Dovima appears as Model.) 27 27 "Danger! High Voltage!" Leslie Goodwins Ben Gershman Bill Freedman April 19, 1964 (1964-04-19)
My_Favorite_Martian
Fast-growing hierarchy Indian numbering system Infinity Large numbers List of numbers Mathematical constant Names of large numbers Names of small numbers
Orders_of_magnitude_(numbers)
Business laptops and tablets series from Lenovo
new, redesigned touchpads, spill resistant keyboards, Dolby Atmos speaker systems, and Windows 11 with Windows Hello support. IBM's ThinkPad 130 was
ThinkPad
Line of notebook computers
March 25, 2015. 1.4.1 System Memory Support "DDR3 I/O Voltage of 1.5 V". Gibbo (January 10, 2011). "Sandybridge maximum safe voltages" (Forum post). Overclockers
MacBook_Pro_(Intel-based)
Motor vehicle
Manufacturing for Delphi, with a weight of 870.1 kg (1,918 lb), a nominal system voltage of 312 V, and a nominal capacity (to half of the fully charged capacity)
Ford_Ranger_EV
Grimes, declaring that he does not need safety gloves, grabs two high-voltage wires and is fatally electrocuted. As a final inadvertent insult, Homer
List of recurring The Simpsons characters
List_of_recurring_The_Simpsons_characters
Canadian hydroelectric utility
away from the urban centres in southern Quebec, through transmission line voltage was stepped up to 735 kV for the first time anywhere, led by engineer Jean-Jacques
Hydro-Québec
to about 2000 volts, but this is a dangerous voltage for household use. With alternating current voltage can be changed up or down using a transformer
Economic history of the United States
Economic_history_of_the_United_States
Device for showing motion picture film
allow the passage of sound from the speakers and subwoofer which often are directly behind it. In the two-reel system the projector has two reels–one is
Movie_projector
American engineer & inventor
by a DC-rectified portion of the audio signal, kicking in only at high voltage levels. The servo motors in the subwoofer allowed for 3 to 4 times as much
Tom_Danley
travel, tourism, insurance
CONSTANT VOLTAGE-SPEAKER-SYSTEM
CONSTANT VOLTAGE-SPEAKER-SYSTEM
Girl/Female
Spanish Italian
Constant.
Surname or Lastname
English
English : variant of Speaks.
Girl/Female
British, English
Similar to Constance; Used by 16th and 17th Century Puritans
Boy/Male
English Latin
Steady; stable.
Female
English
English form of Latin Constantia, CONSTANCE means "steadfast."Â
Girl/Female
Latin American English French Shakespearean
Firm of purpose. Constancy, from the Latin Constantia.
Boy/Male
Latin English
Constant.
Male
French
French and Romanian form of Latin Constantinus, CONSTANTIN means "steadfast."Â
Boy/Male
Latin
Constant.
Female
Romanian
Romanian form of Latin Constantia, CONSTANTA means "steadfast."
Girl/Female
Australian, German, Latin, Spanish, Swedish
Constancy; Steadfastness
Surname or Lastname
English and French
English and French : from the medieval female personal name Constance, Latin Constantia, originally a feminine form of Constantius (see Constant), but later taken as the abstract noun constantia ‘steadfastness’.English and French : habitational name from Coutances in La Manche, France, which was named Constantia in Latin (see above) in honor of the Roman emperor Constantius Chlorus, who was responsible for fortifying the settlement in ad 305.
Girl/Female
American, Australian, British, Christian, Dutch, English, French, German, Latin, Portuguese, Shakespearean, Swedish
Constancy; Steadfastness
Girl/Female
Latin English
Firm of purpose. Constancy, from the Latin Constantia.
Girl/Female
Australian, French, German, Latin, Spanish
Constancy; Steadfastness
Female
Spanish
Spanish form of Latin Constantia, CONSTANZA means "steadfast."
Surname or Lastname
French and English
French and English : from a medieval personal name (Latin Constans, genitive Constantis, meaning ‘steadfast’, ‘faithful’, present participle of the verb constare ‘stand fast’, ‘be consistent’). This was borne by an 8th-century Irish martyr. This surname has also absorbed some cases of surnames based on Constantius, a derivative of Constans, borne by a 2nd-century martyr, bishop of Perugia. Compare Constantine.English : perhaps also a nickname from Old French constant ‘steadfast’, ‘faithful’.
Boy/Male
Australian, British, Danish, English, French, German, Italian, Latin, Swedish, Swiss
Steadfast; Constant
Male
Polish
Polish form of Latin Constans, KONSTANTY means "steadfast."
Surname or Lastname
English
English : variant of Speake.
CONSTANT VOLTAGE-SPEAKER-SYSTEM
CONSTANT VOLTAGE-SPEAKER-SYSTEM
CONSTANT VOLTAGE-SPEAKER-SYSTEM
CONSTANT VOLTAGE-SPEAKER-SYSTEM
CONSTANT VOLTAGE-SPEAKER-SYSTEM
CONSTANT VOLTAGE-SPEAKER-SYSTEM
CONSTANT VOLTAGE-SPEAKER-SYSTEM
a.
Of or pertaining to voltaism, or voltaic electricity; as, voltaic induction; the voltaic arc.
a.
Not constant; not stable or uniform; subject to change of character, appearance, opinion, inclination, or purpose, etc.; not firm; unsteady; fickle; changeable; variable; -- said of persons or things; as, inconstant in love or friendship.
n.
The produce of the vine for one season, in grapes or in wine; as, the vintage is abundant; the vintage of 1840.
a.
Of or pertaining to Alessandro Volta, who first devised apparatus for developing electric currents by chemical action, and established this branch of electric science; discovered by Volta; as, voltaic electricity.
n.
A superior wine, white and red, from Constantia, in Cape Colony.
n.
The state or quality of being constant or steadfast; freedom from change; stability; fixedness; immutability; as, the constancy of God in his nature and attributes.
pl.
of Volta
a.
harmonizing together; accordant; as, consonant tones, consonant chords.
n.
One who speaks.
n.
One who utters or pronounces a discourse; usually, one who utters a speech in public; as, the man is a good speaker, or a bad speaker.
n.
The steamer duck.
v. t.
To adorn with foliage or the imitation of foliage; to form into the representation of leaves.
adv.
With constancy; steadily; continually; perseveringly; without cessation; uniformly.
n.
One who uses a spear; as, a spearer of fish.
a.
Not constant; inconstant; fickle; changeable.
a.
A day of the present or current month; as, the sixth instant; -- an elliptical expression equivalent to the sixth of the month instant, i. e., the current month. See Instant, a., 3.
n.
See Pottage.
imp. & p. p.
of Spear
n.
One who is the mouthpiece of others; especially, one who presides over, or speaks for, a delibrative assembly, preserving order and regulating the debates; as, the Speaker of the House of Commons, originally, the mouthpiece of the House to address the king; the Speaker of a House of Representatives.
n.
One who speaks; a speaker.
travel, tourism, insurance