Good news for audiophiles out there. Apple’s new M1 Pro and M1 Pro Max MacBook Pros feature an adaptive voltage headphone amplifier, meaning it optimizes itself to the headphones you’re using. With these two models, gone is the concern whether 80 ohm or 250 ohm headphones will work.
“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.”
So, if you love Beyerdynamic’s DT 990 Pro 250 ohm Open-back Studio Headphones, you can rest assured that your new MacBook Pro will power them with aplomb.
I miss the startup chime on my MacBook Pro.
To enable it, open up terminal and type:
sudo nvram StartupMute=%00
To disable it, either reset your parameter RAM by pressing Command-Option-P-R at startup, or in terminal type:
sudo nvram StartupMute=%01
Apple’s default settings for BASH are less than lovely — just shades of gray.
Here’s how to add color to BASH for your visual enjoyment. Continue reading
Using ‘sudo’ with NPM is a no-no, as it can cause all kinds of havoc with file permissions. You can specify a default directory for globally installed packages and thus absolve yourself of sudo chaos. Continue reading
As any Mac user knows, running Command and Conquer Generals (including Zero Hour) tends to crash on startup on a Mac running OS X. Here’s how to fix it. Continue reading
The method for clearing or flushing the local cache in Mac OS X has changed over the years. Clear your DNS cache on Yosemite, Mavericks, Lion, Mountain Lion, Snow Leopard and Leopard using the following Terminal commands:
Sadly, I had this experience lately. Even though I had the firewall explicitly set to allow connections using Screen Sharing, for some reason my Mavericks OS X 10.9 server hiccuped and I couldn’t access it via screen sharing.
Here’s how I resolved my dilemma:
Here’s a cool tip from The Distant Librarian on how to silence the audio feedback you get when using the keyboard to increase or decrease the volume in Mac OS X.
Hold down the shift key while depressing the volume keys will silence the auditory feedback while raising and lowering the volume, but still show the visual cue.
Other cool tricks:
Hold down option while clicking one of the sound keys to access the Sound system preferences.
Get more granular volume control by holding down shift-option while clicking one of the sound keys to increase/decrease volume in 1/4 the normal increments. Normal, the Mac provides 16 volume levels. Holding down shift-option gives you 64 increments.