Thanks much for your response last month! I'm sorry I didn't see this sooner (I should be notified of activity in this thread next time you respond...)
You mentioned other headsets...I have used both the Beyerdynamic MMX 300 and another competitor PC 360 (same mic sensitivity as PC 350) on my Xbox 360 / Astro Mixamp setup without issue, so I think the setup is ok.
Before reading your post, I assumed that the mic sensitivity of the GHS 1 was lower. Where did you get the mic sensitivity spec on the GHS 1? I wasn't able to find it on AKG's site, so I must be looking in the wrong area. Do you happen to know if it uses a dynamic or condenser mic? Given the sensitivity you quoted, I would assume the GHS 1 uses a condenser mic, as dynamics are often much less sensitive. I know the MMX 300's mic is a condenser, so the mixamp must provide the little bit of voltage needed to power it.
Hi ATB,
This is a strange story.
The mic sensitivy of the GHS is about 20 mV/Pa which is fairly high compared to other brands (for example: another competitor PC 350 has 13 mV/Pa ) So it seems to be a problem of adjustment.
The MMX 300 from Beyerdynamic has also 20 mV/Pa - so you see that they are all equal and it must be a problem somewhere but not at the GHS.
kind regards
micdoctor
