https://support.apple.com/en-asia/108351
Use high-impedance headphones with your Mac - Apple Support
You can connect high-impedance headphones directly to compatible Mac computers introduced in 2021 or later.
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https://support.apple.com/en-sa/108351
Use high-impedance headphones with your Mac - Apple Support (SA)
You can connect high-impedance headphones directly to compatible Mac computers introduced in 2021 or later.
high impedancemac appleuseheadphonessupport
https://research.birmingham.ac.uk/en/publications/continuously-tunable-mm-wave-high-impedance-surface/
Continuously Tunable mm-Wave High Impedance Surface - University of Birmingham
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https://hemeict.en.made-in-china.com/product/fajrsiNPbqVx/China-High-Impedance-U-Shape-Core-High-Performance-Iron-Cores-Nanocrystalline-Core-Factory.html
High Impedance U Shape Core High Performance Iron Cores Nanocrystalline Core Factory - Amorphous...
High Impedance U Shape Core High Performance Iron Cores Nanocrystalline Core Factory, Find Details and Price about Amorphous Core and Nanocrystalline Core from...
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https://pure.psu.edu/en/publications/ultra-thin-absorbers-comprised-by-cascaded-high-impedance-and-fre/
Ultra-thin absorbers comprised by cascaded high-impedance and frequency selective surfaces - Penn...
https://www.analog.com/en/resources/design-notes/rail-to-rail-high-input-impedance-adc-simplifies-precision-measurements.html
Design Note 400: True Rail-to-Rail, High Input Impedance ADC Simplifies Precision Measurements |...
High impedance and wide range are two highly desirable features in precision analog-to-digital converter, and the LTC2449 delta-sigma ADC has both. With just...