macbook pro 2021 headphone impedance

[ogoodness]

Has anyone been able to test headphones at 250 ohm?

 

[PeterJP]

I was asking myself that question too. They say "high impedance", but how high does it go? Specs on the site don't say.

 

[RichJamz]

I am listening on my 600 ohm Beyerdynamic DT880s right now and it's pushing them just fine (at least for my ears)! Per the Apple EU support website (posted today) it can potentially push up to 1k ohms...

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 impedance of less than 150 ohms, the headphone jack provides up to 1.25 volts RMS. For headphones with an impedance of 150 to 1k ohms, the headphone jack delivers 3 volts RMS. This may remove the need for an external headphone amplifier.

With impedance detection, adaptive voltage output, and a built-in digital-to-analog converter that supports sample rates of up to 96 kHz [...]

 

[jabbr]

I tested the jack with my HD600, sounds great! It gets way louder than previous notebooks. Pretty neat to not need my audio-interface all the time.