The new MacBook Pro 2021 features a series of ports on its side like HDMI, MagSafe 3, SDXC, the 3.5 mm headphone jack and the improved six-speaker sound system as well. That’s really a boon for professionals who want to use the MacBook Pro with studio-quality headphones.
Now you can take advantage of high-impedance headphones with the new MacBook Pro models. Both the 14-inch and 16-inch ones feature “DC load detection and adaptive voltage output”, meaning that they 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.”
On the support page, Apple further explains that the headphone jack provides up to 1.25 volts RMS when your headphone comes with an impedance of less than 150 ohms. When the impedance hits 150 to 1k ohms, the headphone jack delivers 3 volts RMS. That’s good news for high-impedance models from companies like Sennheiser and Beyerdynamic, and you no longer need an external headphone amplifier.
The new MacBook Pro also features a built-in digital-to-analog converter that supports sample rates of up to 96 kHz, which means it will play nicely with Apple Music’s CD-quality (16-bit/44.1kHz) and Apple Lossless (24-bit/48kHz) tiers.
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