Sennheiser PC37X randomly goes bad after disconnecting the cable ?
Greetings, Yesterday I was using my headset like normal with my macbook, just listening to music and on a call with people like usual, and the headset was perfectly fine. The stock wire that came with the headset is extremely long and yesterday it annoyed me very much that it kept getting tangled with itself, so I decided to see if the cable is replaceable. I pulled out the cable from the headset and saw the adapter, and looked online for a replacement. Upon plugging it back in, the audio sounded extremely muffled and washed out. Im not sure what I did wrong to make it mess up like that as I've always taken good care of it, ive had it for about 2 years and its always just been chilling on my desk, but anywho I thought the cable just went bad and ordered a replacement. The replacement came, and the issue is still persistant, so I am not sure what the issue is I've tried multiple different headsets and the issue is not with the port, and I also tried it with my windows laptop and...
Apr 23, 2024
Full article here: http://nwavguy.blogspot.com/2011/06/sennheiser-hd-650.html?m=1
His calcs are not wrong, but they refer to power required to accommodate 115 dB peak levels. That is really f'ing loud.
In my experience, the HD6xx get plenty loud from only 2 Vrms or about 12 mW.
To reach a loud, safe level of 105 dB peak volume (90 dB avg volume), only about 5 mW is needed.
A great resource is here - https://diyaudioheaven.wordpress.com/tutorials/power-impedance-etc/ Tabulated data is here - http://www.mediafire.com/view/dzwe1g73q6pbhnx/headphone%20power%20table.pdf
Using specs from here - http://fiio.net/en/products/71/parameters - in single ended mode the X7 mk2 has 6Vpp or 2.1 Vrms. In balanced mode you have 10Vpp or 3.4Vrms. Both specs are less than is available for the NX4 DSD (2.9Vrms low gain, 5.8 Vrms high gain).
I'm not saying one is better or worse, but they should drive the hd6xx equally well (and loud!). However, your understanding of what the specs mean is a little off. Happy listening, at any rate!