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robbertwilson
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SsButerbal
Ringing in PC38X's
I recently got this headset, and wow is it good. My only issue is when certain people talk on discord, I can hear a really high pitched ringing. I fiddled with a bunch of settings, computer audio and discord, and nothing seems to solve the issue. It is primarily if not all in my right ear only. Is there something wrong with my headset, or was that ringing always there I can just hear it cause the headset is THAT good? I haven't had any issues with any other application, though I have yet to test if I can hear the ringing on a different version of discord, say on my xbox instead of my pc. Only other issue I've had is occasional static, but I can't tell if it's from the headset or the show/game/etc.
Apr 24, 2024
itsamepe
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
MrChiSox
Big changes coming to my tiny little music room, I've recently purchased a new stack. Currently figuring out where to locate it all and ordering up the necessary cables, it won't be too long before I'm up and running. I am now the proud owner of a brand new stack. It's a European brand called Earmen. Amp, DAC, Streamer & Linear Power Supply. It won't be long!
https://www.youtube.com/watch?v=MB15yM4UptQ
Apr 23, 2024
Briankan
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Hey all, What would you recommend I get next and why? I have Koss ESP-95x electrostatic massdrop headphones. These are my first and only audiophile set. I love them. I think my only real requirements is $500 or less for the headphones and that they have a little more low end. I don’t need thump but these are really light on lows…but the experience is still awesome. Also any recommendations on an amp? I only have my electrostatic thingy. I am using the Topping D50 DAC. thx!!
Apr 22, 2024
Simthaniel
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brothamike
A decent set of IEMs
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I can't get any sound through the output ports from this device... I have tried both the TOS link and USB link and no luck.
I was able to get sound through only 1 mode: From my soundcard, TOSlink to m920, enable the straight DAC mode (by changing the 3 jumpers.), to my A5+ speakers. Interesting to note that at this mode, sound comes out from my speakers no matter what output I set it to.
Unfortunately, even at this setup, nothing came out of the Headphone ports (Fostex TH-900 and Sennheiser HD800 connected). Of course, I have the source set to TOS and USB properly.
My computer detects the m920 when it is connected via USB, and I'm properly choosing the sound settings to properly match when the m920 is connected via USB versus my Soundcard's TOSlink. I believe this may be a defected product. Can you please speak with Grace designs on my behalf and see what they suggest?
Sound is functioning properly when the m920 isn't connected. Hopefully it's just a user error?
BTW, I'm getting a lot of defected products (mostly electornic). Is massdrop only sourcing defected products? Or products with no QA?
Also, when you say sound always comes out of your speakers no matter what output you're set to, are you talking about your computer's output or the DAC's output control selector?
Also, for me, Windows did not set the m920 as the default device when connected for me, I had to do that and change the sampling rate myself (and in the case of being set as a Class 2 device, it wasn't plug and play at all).
Perhaps try doing a factory reset of the DAC (turn off the DAC, put the source selector to USB, power on while holding the volume encoder, hold the encoder until "rs" appears on the screen, and then release and tap the encoder). You'll want to change back to USB Class 2 if you're using USB.
What's interesting is I went back to USB1 mode, (of course setting the correct sound device on sound device), and I still had sound. Awesome. Now I have a weird sound issue, and Alex from Grace Audio has responded so I will be mentioning more info there if you're interested.
Yes! I had the input selected for Headphones (HP) and not L1/L2. The output was selected on the DAC's output selector and it seems Alex from Grace Audio has stated what I was observing: fixed DAC mode at work (I actually prefer it this way).
I now have a strange volume issue and currently am tinkering more with it to figure out what, but I will post that issue as a reply to Alex.
In the meantime, I'm going to give the factory reset a try. Thanks for the suggestions!
Yes thanks for that. After your statement, I reviewed the document and it made sense for exactly what I should expect in the Fixed DAC mode (I appreciate this mode BTW).
And to answer your suggestion, yes I kicked up the volume knob all the way to 99.5 and still had nothing on both my Sennheiser HD800 (300ohm impedance) and Fostex TH-900 (25ohm impedance).
But that is all yesterday's news. I've just recently tried installing the driver necessary to run USB2 mode, chose U2 under the selector, selected the correct sound device in PC sound settings, and voila! I got sound again.
What's strange is I went back to U1 and still get sound.
Anyways it's working now. But I need to have the the m920 volume set to 75 (with +9.5dB offset) with Windows volume set to 80. For my HD800, I'm used to setting my Windows volume to 19, enable High Gain (+12 dB) via Asus Xonar Essence STX HP port, and be done so it's a huge difference.
Can you confirm this is expected behavior? Is the m920 not designed to run an HD800 with anything less than 50 volume below? Is an amp necessary for any headphones above 300 ohm impedance? Is it safe to run at such high settings for long periods of time (~18+ hours for example)?
Thank you!
No problem! Good luck! I know it will get worked out in the end, even if you end up having a defective unit (though I can't imagine the chances of that being very high).
Depending on what type of music you listen to and what kind of listening levels you are comfortable with, that volume level is fairly normal. Listening to HD800's here in an office environment with some modern loud mastered material, 72~75 without offset is comfortable. If you listen to classical or jazz where it is not mastered to be as loud as possible but to be more dynamic, then a higher volume level would be the norm. The thing to note is that you still have 25dB of attenuation, which is quite a lot when it's the difference between 85dB SPL and 105dB SPL. I don't think I've listened to any headphone through our headphone amps where maxing out the level wasn't very painful. Always be careful not to listen too loud for too long! Unless you are in an ultra quiet studio with very sensitive speakers, you probably won't be listening to many things with the level under 50. Ambient noise floors are anywhere from 20dB to 50dB SPL, and the HD800's do not seal your ears off from the outside so you are having to turn the music up past the ambient noise floor before you can hear anything. The m920 is designed to provide the best signal at any level. The m920 has no problem driving 600 ohm phones. The more important spec to know is sensitivity. You can have highly sensitive 600 ohm phones be just as loud as low sensitivity 30 ohm phones at the same level. Higher impedance phones draw less current which lowers the power, so sensitivity is key in knowing whether a headphone amp can drive it adequately. Our amp produces ~120mW @ 600 ohms. The 600 ohm Beyerdynamic T1's have a sensitivity of 102dB SPL / 1mW @ 500hZ, so theoretically with 120mW it will max out at ~123dB SPL. That is loud enough to cause some serious hearing damage! We don't recommend listening above 85dB SPL to prevent hearing damage. Music is of course not a sine wave so average power/SPL will be lower than theoretical max, but the m920 can definitely drive headphones to extreme SPL levels. It all depends on sensitivity and how loud you need it to be. There is no need for concern with running high levels for long periods of time, other than being concerned for your hearing! We designed the m920 (and all of our products) to handle any kind of abuse and to last for an incredibly long time. There are many m901's, m902's and m903's out in the world that work non-stop in professional environments and they hardly ever come back for servicing! With a 5 year warranty, you shouldn't have to worry about it :)