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Line Out vs Speaker Out: What's the Difference? (Explained!)
https://geekmusician.com/line-out-vs-speaker-out/#:~:text=When%20your%20equipment%20or%20audio%20device%20outputs%20audio,impedance%20that%20is%20around%202%20to%2016%20ohms.
What is Impedance in Audio? Input and Output …
https://virtuosocentral.com/what-is-impedance-in-audio/
In audio devices, impedance is the measure of the resistance of a circuit to alternating current (audio signal). It’s measured in Ohms. The “Z” symbol represents impedance. All audio equipment that receives an input and has an output will have impedance measurements, namely input, and output impedances. More on that later.
Understanding Impedance - Sound on Sound
https://www.soundonsound.com/techniques/understanding-impedance
The output impedance of a device and the capacitance of its connecting cable form a simple first-order low-pass filter, producing a 6dB/octave attenuation above a certain frequency. However, you need either quite a low output impedance or quite a long high-capacitance cable to bring the turnover of this filter into the audio band.
Line Out vs Headphone Out: What's the Difference? (Solved!)
https://geekmusician.com/line-out-vs-headphone-out/
Impedance Line out signals has a source impedance within the regions of 100 ohms and more. They are meant for driving loads that have high input impedance. Line level outs are optimized to produce low noise and distortion when used with high impedance loads. Unlike line outs, headphone outs have a low source impedance.
audio - What is the impedance of the line/headphone jack ...
https://apple.stackexchange.com/questions/57186/what-is-the-impedance-of-the-line-headphone-jack-on-macbook-pro-retina
The Etymotic HF5s are 16 ohms so the max output impedance is 16/8 = 2 ohms. If you want to be assured a source will work well with just about any headphone, simply make sure the output impedance is under 2 ohms." So if the mac is 10 ohm output, you want headphones with >80ohm impedance. Share.
audio - Line-out: why is there no impendance issue when ...
https://electronics.stackexchange.com/questions/114592/line-out-why-is-there-no-impendance-issue-when-plugging-an-amp-rather-than-head
With low-frequency audio signals, generally the voltage carries the information and the current follows along as determined by the load impedance. With RF circuitry where everything is routed in transmission lines with controlled impedances, the information is carried in the power (product of current and voltage).
Line Out vs Speaker Out: What's the Difference? (Explained!)
https://geekmusician.com/line-out-vs-speaker-out/
Line outputs have an output impedance of about 100-600 ohms. Speaker outs on most amplifiers come with an output impedance that is around 2 to 16 ohms. Speaker outs are ideal for driving low impedance loads, while line outputs are designed to drive high impedance loads. Line outs can drive loads with an impedance of about 10,000 ohms. Voltage
How important is impedance matching in audio applications ...
https://electronics.stackexchange.com/questions/6846/how-important-is-impedance-matching-in-audio-applications
A line output will be something like 100 Ω, while a line input is more like 10 kΩ. A loudspeaker amplifier will be less than 0.5 Ω, while loudspeakers are more like 4 Ω. A guitar output might be 100 kΩ, while a guitar amp input is at least 1 MΩ. In all these cases, the load impedance is significantly larger than the source; they are not matched.
What does it mean to have line-out impedance between …
https://www.reddit.com/r/headphones/comments/7ps01q/what_does_it_mean_to_have_lineout_impedance/
What does it mean to have line-out impedance between 51-109 ohms? I've been trying to find an answer to this with google-fu but haven't had much success. I'm curious because the Realtek HD Audio Manager (default for my mobo) states that underneath the selection options for Amplify level (which defaults to Powerful, and I like to set to Extreme ...
Dumb Question: Line Level / Line Out vs. Headphone Out ...
https://www.head-fi.org/threads/dumb-question-line-level-line-out-vs-headphone-out.850033/
no it isn't particularly strange. a line out tends to follow standards so that he amp manufacturers can design their products knowing what signal they'll be fed. for desktop systems a line out should be about 2 or 3V, with an impedance somewhere around a hundred ohm. and same for line out designs, they expect to be linked to an amplifier input of several thousand …
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