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
Sorry for the load (pun intended) of questions!
Thanks in advance.
Thank you so much for taking the time to answer all those questions. It is really priceless to have a member of the design team shim in and answer customer's questions in such a open manner!
My purpose is certainly not to cause you any unnecessary pain is the place you mention, so to simplify questions 1 and 8 a set of discrete measurements would certainly be adequate.
For example for the THD vs frequency simple measurement at 100Hz, 1kHz (already done) and 6kHz would be perfect, at different loads (300 ohms, 32 ohms, 16 ohms?)
For THD vs power a simple 1kHz measurement at say -1dB, -3dB and -10dB at the different loads already mentioned would be perfect.
Regarding the IMD measurement already published, at what power are they measured?
Thank you !
Thanks
There is little power in that range, and HD is a none issue or course (albeit IMD might be). Would you advice using the SE output in that case?
Another solution would be to use an autoformer and turn that 4 ohms load into a 32 ohms one (-9dB). Autoformer distortion in the HF should be very low with a good unit like this one: https://www.ebay.com/itm/382404871179
What do you think?
- How does one go about not overheating the amplifier? Or void the warranty! With such headphones?
- Will a single-ended impedance adapter do the trick?
- What about a balanced XLR cable? Does one simply add 16 Ohms of additional resistance on the signal leads inside the XLR connector?
Thanks in advance.The 789 balanced and unbalanced outputs are designed for headphone loads with a minimum 12-ohm impedance,and can tolerate loads between 12 ohms and 8 ohms if the amplifier is driven to no higher than 4 V peak across the load. Usage outside of these parameters may void the warranty. Do not use the 789 to drive loudspeakers. These are conservative guidelines. I don't recommend your #2 or #3. Happy listening! Andrew