I bought the Rolls MX42 Stereo Mixer to mix the output of multiple devices together.
I have connected my Computer (internal soundcard), Laptop, and Phone. All by using 3,5mm Jack to 2 Cinch y-Adapter cables. The output is connected to my Headset (Sennheiser Game One), also via a 2 Cinch y-Adapter with a female port.
The setup works and I can mix the audio from all input devices together, but the resulting output is very quiet on the headset.
I'm quite new to this audio stuff but reading the specs of the mixer, it says
Input Impedance: 10K to 47K Ohms
Output Impedance: 2.5K to 10K Ohms
which looks to me like a lot of "volume" is "lost" in the mixing process. Am I right in assuming that the output signal needs to be boosted (amped ?) before it goes to my headphones? If so, what kind of device am I looking for?