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
Thanks in advance
They will likely re-open a drop for this very nice amp/DAC.
From another post of mine, more questions please let me know, hope this helps: 2 weeksreplying to KJ741N on Let's see yalls rigs. USB 2.0 @ 480 Mbit/s is more than enough for audio data streaming, today, and likely for a while. 3.0 will work, backwards compatible so the specs say. The concern is with the streaming / Isochronous part, it is exactly that, all the losses & corruption are yours... no correction, no re-takes, garbage out = garbage played, pretty much. You see soooo much talk about the data being digital ones & zeros, doesn't matter, snake-oil, yaddi-yadda, yes just kill me - you feel reading on and on about it. Yes, I thought the same, for a while, then thought again... so I tested it, done, simple. What really happens in the chip processing world of DAC's? It is really that you get bad data, oh well, the show must go on, we play what works, tone it down or just effectively mute it; here it is from a horses mouth (Cirrus that I use as an example): "The CS4398 can detect errors in the DSD data that do not comply to the SACD specification. The STATIC_DSD and INVALID_DSD bits (Reg. 09h) allow the CS4398 to alter the incoming invalid DSD data. Depending on the error, the data may either be attenuated or replaced with a muted DSD signal (the MUTEC pins would set according to the DAMUTE bit (Reg. 04h)). " https://d3uzseaevmutz1.cloudfront.net/pubs/proDatasheet/CS4398_F2.pdf Yes, I'm a DSD listener, so I'm stuck with USB until we get something better for audio... The clicks & pops folks talk about, that is catastrophic level data loss/corruption. The pragmatic solution is get a decent, well-shielded USB cable, https://www.amazon.com/Pangea-Audio-cable-solid-silver/dp/B005AUH8SM/ref=sr_1_2?ie=UTF8&qid=1508344791&sr=8-&keywords=pangea+silver+USB . This is something we can correct, poor signal paths within the DAC, well get a good DAC... you do have one. In addition the 5V quality from any PC likely sucks for USB powered DAC's. I feed my 5V from a truly split USB, not power from two connectors, into my USB powered Korg 100 DAC. I got a used ebay, new is overpriced, Gemini, an alternative is: https://www.amazon.com/Pangea-Audio-Premier-Cable-Meter/dp/B06XQFW494 Your 301 is AC powered, so just clean AC is fine. I simplify [cheat] here with a good UPS, pragmatism again, for both AC (PC & amp) and the USB 5V I use a CyberPower CP1350PFCLCD pure sine wave, protects and cleans;) A good solution to many noise issues, but how this works so well at less than a $1,000.00 is an audiophile mystery...
While it is true that digital data is all 0's and 1's, that data can be corrupted in transit. If it was not an issue there would be no need for CRC checks.
FYI, I spent the time waiting... and spoke with a real tech at CyberPower who was genuinely interested in my questions about using their unit for clean USB 5V for a USB powered DAC in addition to AC for everything else. He did not have ripple/noise specs to share about the 5V USB etc., but then neither do any of the USB stand-alone linear power supplies that I have seen, publish this info. The CyberPower tech said that their unit, while not intended/marketed for audio should perform well for this purpose. He did not scoff at the "audio" cleaners, but stated that they (CyberPower) are as good, read; they (high-end-audio) take you to the cleaners. I would like to see a technical comparison between units, but me thinks that may be taking the curtain to the side a bit,, so we will not be seeing this, follow the $... Somebody with both types of units and a good scope willing to test?
This we do know, the AC power going into any home, office, anywhere, unless you are in a data center or lab with conditioned power, is an AC shit-storm.
Why the top audio folks simply go off the grid, then they get to talk about battery noise:) Not kidding, they do make some noise esp. smaller alkaline... but damn, where does it stop... that's it Brownian motion is the problem... alpha particles and stop plate tectonics...
http://tf.boulder.nist.gov/general/pdf/1133.pdf
Oh, real! Get rid of/turn off all CFL, worst, all florescent lamps in the area and really all dimmable LED's, they are mostly using PWM, Pulse Width Modulation, for dimming, all are noisy. Yeah, use an Edison filament bulb, your amp tubes themselves or light some candles, romantic...
FYI: When we test machines where I work for CE emissions (EMI) compliance, low level nowadays, we turn off all of our crappy American florescent light fixtures to see our system emission, really, I watched the scope... for the French we test in the dark:0
Yes, all of these improvements are incremental, but they add up nicely when you listen to the result.
Another audiophile solution, when in doubt, spend more money. Summary; buy the silver surfer cable, a steal at that price, clean AC, turn off the lights and no ground loops.