The G-Pro should work just fine with the G433 card! I don’t have my old dongle around any more, but there’s nothing proprietary about its jack so you should be good.

Ohm differences, by themselves, don’t really change anything about the raw quality of the audio. They tell you how resistant the driver is to electric current, and that impacts how easy it is for the amp to push audio through the driver. Lower ohm ratings tend to indicate easier-to-drive headphones that will be louder and more susceptible to picking up the noise floor of your amp, but even then it’s not always one-to-one.

The pads, driver design, and enclosure design make a much bigger difference to the sound than the resistance does. Those are the things that engineers spend the most time tweaking in the design process. The ohm rating has to do with the gauge of wire used in the coil at the back of the driver, and that’s more about matching the headphone to the type of equipment they expect you to plug it into.

All of the pairs you’ve mentioned should sound good out of just about any amp. Even the 80 ohm DT770 does decently out of a phone jack as long as you don’t need the loudest playback.

My preference of the G Pro has to do with the slight differences in the sound signature, and honestly, it’s just down to what I was subjectively feeling on the day I wrote the article. They’re both pretty awesome-sounding. The G Pro has a little more bite in its treble, which is something I personally enjoy.

You might consider looking into Windows Sonic, if you’re using Windows 10. It’s a great free surround option built into the OS that’ll work through any output. Just another thing to consider!

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I do radio voice work by day, and write by day and night. I studied film and production. I love audio, design, and music. Also video games.

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