The amplitude of a signal at a certain point on a transmission line. Usually expressed in decibels.
Audio that is used to go from one piece of equipment to another. Depending on the system this can be anything from -10 dB to +4 dB in a high impedance system. It is usually 0dBm in a balanced system. Another term is auxiliary level.
Signal strength on a transmission channel.
An analog audio connection intended for connecting interconnecting audio equipment, and without the amplification required to connect to speakers. See also Mic.
The nominal output level of a mixer or the equivalent level in an outboard device. In pro equipment it is usually around +4dBM or +4dBU. In home stereo equipment, it is -10 or -20dBv.
A signal whose level is too low to drive a speaker. It is passed to an amplifier to achieve a speaker level signal.
A small level that sits on top of a string that is attached to a datum point. The string, when pulled taut, will allow an archaeologist to use the level and then measure the depth below the datum point (an extremely useful tool on a dig!!).
Electrical audio signals within the range of -10 to +30 dBu. Usually in circuits with a 10k ohm load. Line levels are found on the outputs of tape decks, CD players, keyboards, mixers, most signal proccessing equipment, VCR's, etc. They can be balanced or unbalanced. Line level signals are much higher than microphone level signals.
An audio signal with an amplitude of approximately 1V to 2V. Audio components interface at line level through interconnects. Contrasted with " speaker level," the much more powerful signal that drives speakers.
Average (power) level at which a signal is output from devices like mixers, cassette decks and other devices which process sound. Technically, this corresponds to –30 dBM (one microwatt) to +30 dBM (one watt).
A signal level referenced at +4 dBm or more.
The standard volume level for routing audio signals. For pro audio gear, line level is set at +4dBv and for consumer gear it is -10dBv.
Line levels can be used in the standard fashion to check for a level surface or run along a line to check for level measurements across long distances. Line levels are excellent for masonry, landscaping and gutter work.
Audio signals whose maximum average levels can exceed approximately 0.5 volts, or a circuit which can output or accept such signals.
A signal whose voltage is between approximately 0.310 volts and 10 volts across a load of 600 ohms or greater.
Describes inputs to amplifiers which don't need amplifying before the amp can use them.
A level that hangs from a mason's line, typically used to transfer level elevations from one post to another.
a level designed to hang on a builders string line
a smaller version of this which hangs on a string
a small gadget that is light enough to hang on the string
a very small level that is designed to attach to a string
A level of electrical pressure too low to make speakers move sufficiently (from 25 millivolts up to about 4 or even 5 volts). Amplifiers receive line-level signals and amplify them to speaker level.
Line levels are used to make sure that everything is even when digging. Sometimes when you are measuring the distance a feature is from the corner of the unit, you may be down 40 or 50 cms. You may have to use a plumb bob and a line level to make sure you are measuring accurately. A plumb bob is a line with a weight on it. One person would hold the measuring tape out from the corner over the feature and would make sure the tape is level by holding a line level on it. Another person would drop a plumb line over the feature and then they would record the distance measurement.
Most audio equipment operates at a standard signal level known as "line level". In practise there are actually several different line levels (naturally), but all are within a few volts of each other. A nominal signal level is approx. -10dBv for semi-pro consumer equipment and +4dBv for professional equipment.
Usually referred to as a signal level of) dB. Equivalent to a 0.7 to 1-volt signal level into specified impedance.
A low-level audio signal. The kind of signal that is typically communicated between components using shielded interconnects with RCA type connectors. Sometimes called preamp level, to distinguish it from speaker level signals. See: Speaker Level
Refers to the output level of a power amplifier, capable of driving a speaker - same as Pre-amp Line Level
A device, about the thickness of a fountain pen, that you can hook onto a taut horizontal piece of string to see if the string is level. Useful in maintaining straight lines when attaching pickets on a fence or when pruning a hedge.
Also know as "low-level", an audio term referring to the signal before power amplification. In a system with separate pre- amp and power-amp the pre-amp output is line level CD players, VCRs, DVD players, Laserdisc Players etc., are connected in a system at line level, usually with shielded RCA type interconnects. (For techies, it's a signal level between -10dBu and +30dBu.)
Line level, the second level of an electrical signal in a sound system, is the form an electrical signal takes after it comes through a microphone and is amplified. This signal is usually about one Volt.
Audio signal industry-referenced at 600 ohms, 0dB. Consumer systems may use a different reference.
CD players, DVD players, VCRs etc., are connected in a system at line level, usually with shielded phono type connectors. Line level is before power amplification. In a system with separate pre-amp and power-amp the pre-amp output is line level. Most surround sound and Hi Fi systems have line level inputs as well. (Aux. In etc).
Line levels -- tiny bubble levels with clips that hook over a length of mason's line -- are useful for tasks such as building new masonry walls and checking grade slopes for landscaping projects. Home Improvement Encyclopedia
Sound term, referring to non-microphone inputs: CD, tape, MIDI.
Low-voltage output signals available at the shielded (RCA, XLR) connections of preamplifiers, CD players, tape recorders, etc., designed to interface with the line-level inputs of amplifiers, subwoofers, tape inputs, etc. See also Speaker level.
A term for a low-level audio signals sent over cables that connect various components within a system in order to transfer audio information.
CD players, VCRs, Laserdisc Players etc., are connected in a system at line level, usually with shielded RCA type interconnects. Line level is before power amplification. In a system with separate pre-amp and power-amp the pre-amp output is line level. Many surround sound decoders and receivers have line level outputs as well.
A standard signal voltage for line transmission of data. Line level for many audio devices is 0 dB at 600 Ohms.
Term for a low-level signal sent over patch cables (interconnects) which connect various components within an audio/video system in order to transfer information but not connecting amplifiers to speakers (a high-level signal with much more power needed in order to move the speaker driver).
Refers to the output voltage level of a piece of electronic equipment. Usually expressed in decibels (e.g.. 0 dBV).
The RCA connection sent to a subwoofer. This level is too low to power a speaker and usually requires a self amplified product.
Refers to low-voltage audio signals, typically between 500mV and 4V. Also known as low-level or preamp level. The voltage of a line-level signal is increased when it passes through a power amplifier.
Preamplified signal, in contrast to microphone level. The actual signal levels vary, with nominal microphone level being -50dBM and nominal line level being +4dBM.
The standard preamplifier output level of a signal from an audio source other than a turntable. Usually between 100mV and 1V, but may be as high as 5V or more from some preamplifiers.
Almost every source component (except phono cartridges) gives an output in the region of 1-2 volts - this is 'line level'. Amplifier inputs labelled 'CD', 'tuner', 'aux' or 'tape' are all designed for this input level, while record players may need a separate 'phono stage'.
A signal level between -10dBu and +30dBu. CD players, VCRs, surround processors, and most recording devices are connected to a system at line level (before power amplification).
Line level is a term used to denote the strength of an audio signal used to transmit analog sound information between audio components such as CD and DVD players, TVs, audio amplifiers, and mixing consoles.