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Impedance Matching of Audio Components
http://hyperphysics.phy-astr.gsu.edu/hbase/Audio/imped.html#:~:text=From%20this%20point%20of%20view%2C%20current%20practice%20for,thumb%2C%20a%20signal%20loss%20of%206dB%20is%20acceptable.
What is Impedance in Audio? Input and Output …
https://virtuosocentral.com/what-is-impedance-in-audio/
For instance, if you connect a microphone to a mixer, your microphone has an impedance of less than 200 Ohms. The input impedance of the XLR balanced connector of a mixer or preamp is between 1500 – 3000 Ohms. This ensures an excellent current flow between the two devices.
Is there any standard for the input impedance of an audio ...
https://electronics.stackexchange.com/questions/342975/is-there-any-standard-for-the-input-impedance-of-an-audio-amplifier
There is a sortof standard for a certain class of professional audio gear. This standard is 600 Ω. All "line level" audio in such a setup is expected to drive 600 Ω. This is also the impedance of the microphones. However, many many amps don't follow this.
Impedance Matching of Audio Components
http://hyperphysics.phy-astr.gsu.edu/hbase/Audio/imped.html
From this point of view, current practice for "low impedance" inputs to audio mixers typically have impedances from 1000 to 2000 ohms according to the Shure Pro Audio website. They comment that as a rule of thumb, a signal loss of 6dB is acceptable.
Audio Presentation System PROAUDIO - ChyronHego
https://chyronhego.com/wp-content/uploads/2018/12/ProAudio-PI-sheet-web.pdf
AUDIO DEVICE • USB Type A Socket: version 1.1 (version 1.1 hubs are not supported) • Power Requirements: USB powered LINE INPUT • Inputs: 2x ¼” TRS balanced or unbalanced • Input Impedance: 20k Ohm balanced, 10k Ohm unbalanced • Maximum Input Level: +12dBu • Frequency Response: +0, -0.2dB 20Hz-20kHz, ref 1kHz MICROPHONE INPUT
Understanding Impedance - Sound on Sound
https://www.soundonsound.com/techniques/understanding-impedance
The DIN specification states that the current source should give an output voltage of 1mV per 1kΩ of input impedance. Typically, the input impedance of a DIN-compatible unit would be 100kΩ, and so would see an input signal voltage of about 100mV. Hi-fi equipment with phono connectors usually employs the voltage matching concept, with very low output impedance and much …
Nu Audio input impedance? - EVGA Forums
https://forums.evga.com/Nu-Audio-input-impedance-m3062625.aspx
High enough that it is probably immaterial to most. High, but probably less than the input impedance of the mic-in (below). So probably somewhere between 4200 ohms and 60000 ohms. I know that is a huge range, but I would expect it to be closer towards the 60000 ohm side vs the 4200 ohm side.
INPUT/OUTPUT IMPEDANCE - High-End Audio Discussion Forum
https://forum.audiogon.com/discussions/input-output-impedance
And the manual for the fantastic Herron phono stage recommends a minimum load (line stage input impedance) of 50K "for optimum performance," although I recall a member here stating that Keith Herron verbally indicated that 20K is likely to …
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.
Pro Channel - ART Pro Audio
https://www.artproaudio.com/framework/uploads/2018/06/om_prochannel.pdf
The ¼” input has a high impedance, which prevents the loading of any device connected to it and makes the Pro Channel perfect for DI or line level applications. The preamplifier’s second stage 12AX7a tube runs on a regulated DC voltage, providing an additional 20dB of gain. Our design enables the tube to overload before the input or
How to measure the input impedance of my audio …
https://www.quora.com/How-can-I-measure-the-input-impedance-of-my-audio-amplifier-if-I-dont-know-what-is-inside
You can expect a phono input impedance to be high, around 50k and sensitivity high, around 5mv. (The high input impedance is to avoid loading the mechanical voltage generator, which has low impedance.) A mic input may be low, 600R or 50R or around 50k. The sensitivity will be high, around 5mV. (Transformers are often part of microphone circuits.)
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