Does anyone know the detailed specs of the Xbox 360 wired headset?

Like mono, stereo, impedances and drive levels? Microsoft’s ‘manuals’ and other assorted searches I’ve done aren’t yeilding the info I need.

Edit: Found what I needed on an old google cache link. Storing here for my and anyone’s reference.

Specifications (headphones):
Diameter: 40 mm
Impedance: 40 ?
Sensitivity: 118 dB +/- 3 dB bei 1 KHz
Frequency response: 20 Hz ? 20 kHz
Power output: 40 mW
Cable length: 370 cm +/-10 cm
Connectors: 3 x 3.5 mm connectors (white/at volume controller: microphone for Xbox® 360, green: stereo playback, pink: microphone for PC only), 1x USB (power)

Specifications (microphone):
Diameter: 6 x 5 mm (L x B)
Directivity: omni-directional
Sensitivity: -58 dB +/- 3 dB
Impedance: 2.2 k?
Frequency response: 100 Hz ? 2 kHz
Operating voltage: 4.5 V

Xbox 360 wired headsets are almost identical to 2.5 mm Phone Headsets.
Alot of the better 3rd party head sets use normal 2.5mm plugs instead of the plug used for older MS brand head sets

My next magic trick is either finding a cheap PCM converter, or figuring out if there are PCM lines tappable on the madcatz 4716.