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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#:~:text=Jack%20type%3A%203.5%20mm%20stereo%20Maximum%20output%20voltage%3A,-80%20dB%20%280.01%25%29%20Channel%20separation%3A%20%3E%2075%20dB
What is Impedance in Audio? Input and Output …
https://virtuosocentral.com/what-is-impedance-in-audio/
What is Output Impedance? If your equipment outputs an audio signal, it has an output impedance. When it sends a signal to the input impedance of the other device, the goal is for it to be balanced. You’ll also hear this referred to as equal or matched 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
Jack type: 3.5 mm stereo Maximum output voltage: 2 VRMS (+8.24 dBu) Output impedance: < 24 Ω Frequency response: 20 Hz to 20 kHz, +0.5 dB/-3 dB Signal-to-noise ratio (SNR): > 90 dB Total harmonic distortion + noise (THD+N): < -80 dB (0.01%) Channel separation: > 75 dB
Output impedance – PS Audio
https://www.psaudio.com/pauls-posts/output-impedance/
That means the output impedance of your power amplifier should be at least 0.3 Ohms and probably better at 0.03 Ohms to really have very little affect. Tubes generally have higher output impedance than solid state products. One piece of evidence you see in most tube power amplifiers is the output transformer of the tube amp.
sound - What is the impedance of audio output of cell ...
https://electronics.stackexchange.com/questions/138794/what-is-the-impedance-of-audio-output-of-cell-phones
In practice you shouldn't get any problems with a headphone with impedance between 20 to 60-70 ohms on most portable devices. There is no "ideal" impedance that you want to match for the best performance. Sound quality depends on lots of things.
Headphone jack output impedance - Asus
https://rog.asus.com/forum/showthread.php?20115-Headphone-jack-output-impedance
Check the TPA6120A2 datasheet, that will tell you the open loop output resistance which is stated at 13 ohms (closed loop output impedance will vary somewhat according to the applied gain). However, the minimum sustainable output load is shown as 8 ohms, while a 10 ohm series resistor is recommended to cater for load capacitance.
Understanding Impedance - Sound on Sound
https://www.soundonsound.com/techniques/understanding-impedance
Typically, most microphones therefore have an output impedance of 150-200Ω, and most preamplifier inputs offer an input impedance of between 1.5kΩ and 3kΩ — on the limit of the 'ten times higher' rule of thumb I mentioned earlier.
Headphone Jack Output Impedance | Audioholics Home Theater ...
https://forums.audioholics.com/forums/threads/headphone-jack-output-impedance.108202/
The A-S801's 470mV/470ohm is an output voltage spec at a given load impedance, that tells you it is rated to provide 470mV into a load (headphone in this case) impedance of 470 ohm. So they are not "apples to apple". slipperybidness Audioholic Warlord Aug 3, 2017 #4 <eargiant said: The Objective 2 headphone amp has an Output Impedance of 0.54 Ohms
[SOLVED] Impedance of earphone jack on standard PC?
https://www.linuxquestions.org/questions/linux-hardware-18/impedance-of-earphone-jack-on-standard-pc-4175536720/
There is a standard and reliable way of determine output impedance. a. Put a signal on that output b. Measure the signal level while nothing is connected to the output. c. Connect a variable resistor or a resistor bank to the output d. Decrease the resistor value until the output voltage is 50 of the original. e. The output impedance is equal to the external resistor …
headphone impedance vs Headphone jack impedance ...
https://www.head-fi.org/threads/headphone-impedance-vs-headphone-jack-impedance.17238/
Impedance matching is not important for headphones, because headphones are driven by voltage. As a consequence of that, you want the output impedance of the amp to be as low as possible. Generally, 1/10th of the impedance of the phones, and 1/100th to completely eliminate audible voltage divider effects. This is for impedance from 20 Hz to 20kHz.
What is the voltage range of a standard headphone jack ...
https://electronics.stackexchange.com/questions/28404/what-is-the-voltage-range-of-a-standard-headphone-jack-from-a-phone
Power is P = V 2 / R so V = R ∗ P, so high impedance headphones will need a much higher output voltage because they require more power and have a higher impedance. Anyway, for the Sony MDR-EX51 headphones shown on the page linked above you can see that they are fairly close to a simple 17 Ohm resistor.
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