Using the industry standard 1/8 rule, the output impedance should be about 3-4ohms. I think they're probably rated at 32ohms in specs I'd guess. I had some trouble finding the input impedance of my Bose "On Ear Headphones", but a reference website measured them at about 25ohms average depending on frequency. Support single plug and dual plug headphone at the same time, no adapter needed. The best way to play sound via speakers and headphones at the same time is to set up a Multi-Output Device via your Mac’s System Preferences.
In general, it’s much easier to have two or more speakers and headphones on at the same time using Mac.
#Best external sound card for speakers and headset how to#
Done If you heard a sound playing from both speakers separately. How to Play Sound On Speakers and Headphones on Mac. Click the buttons on your left one-by-one to test each speaker alone and both speakers together in stereo. Make sure that your headphones or speakers are connected and not muted. What could be going on? Is it an impedance mismatch? EXTERNAL SOUND CARDMicolindun external sound card has its own audio chip, can turn one USB port to several 3.5mm ports, so can connect 3.5 mm audio devices like headphones, headset, speakers, microphone, etc. Our sound test will help you quickly test your sound without installing any software. The headphones work perfectly with my desktop so I know they are good. If I plug my speaker plug into the output, the sound is crystal clear.
If I plug my -known good- Bose "On Ear Headphones" into the output jack, I get very low volume and a lot of distortion and crackling. I'm using a StarTech ICUSBAUDIO USB sound adapter on a Windows 10 laptop. Dell Inspiron Laptop N5050, i3-2350M, SSD, 6GB RAM, Win10 Hm 1903, 64 bit. sound card manufacturer/supplier, China sound card manufacturer & factory list, find qualified Chinese sound card manufacturers, suppliers, factories, exporters & wholesalers quickly on Made-in.