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Sound Card Specs - Apple Community
https://discussions.apple.com/thread/1973943#:~:text=The%2015-inch%20%EE%80%80MacBook%20Pro%EE%80%81%20computer%20includes%20three%20%EE%80%80audio%EE%80%81,20%20Hz%20to%2020%20kHz%2C%20%2B0.5%20dB%2F-3%20dB
Use high-impedance headphones with new MacBook Pro models ...
https://support.apple.com/en-us/HT212856
The 3.5 mm headphone jack on the MacBook Pro (14-inch, 2021) or MacBook Pro (16-inch, 2021) features DC load detection and adaptive voltage output. Your Mac can detect the impedance of the connected device and will adapt its output for low- and high-impedance headphones, as well as for line-level audio devices. When you connect headphones with an …
Apple Explains High Impedance Headphone Tech On New ...
https://www.pro-tools-expert.com/production-expert-1/apple-explains-high-impedance-headphone-tech-on-new-macbook-pro
In the document published October 27th 2021 and titled Use high-impedance headphones with new MacBook Pro models Apple explains; The 3.5 mm headphone jack on the MacBook Pro (14-inch, 2021) or MacBook Pro (16-inch, 2021) features DC load detection and adaptive voltage output. Your Mac can detect the impedance of the connected device and will …
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
Apple Provides Details on Using High-Impedance …
https://www.macrumors.com/2021/10/28/details-high-impedance-headphones-new-macbook-pros/
Apple has published a new support document detailing the use of high-impedance headphones with the new MacBook Pro models. As Apple mentioned when it unveiled the latest MacBook Pros, the 3.5mm ...
High impedance headphone for MacBook without an amp ...
https://sound.stackexchange.com/questions/25124/high-impedance-headphone-for-macbook-without-an-amp
The macbook pro has a voltage output of 1Vrms which means at 32 ohms you have an output of 31mW and for 250 ohm you have 4mW. Using the spec of 96dB/mW we get max levels of 110dB and 102db for 32 and 250 ohm respectively. 102dB is already at the level of hearing damage so it should be sufficient for your purposes.
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