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robbertwilson
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Apr 25, 2024
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
Recommendation for my next headphone set? I have Koss 95x
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
Rigs
Modded headphones with qudelix at the core
When I received the Qudelix 5K, I had already modified a pair of Superlux HD-681 headphones. I previously soldered my own balanced connections to the drivers, providing multiple ways to connect and...
Apr 14, 2024
brothamike
A decent set of IEMs
I am in the midst of a 300 hour burn-in but, I will say I am enjoying how this set sounds so far. Before I received these which was btw late by a few weeks, I purchased a Sony/Kimber Kable MMCX...
Apr 12, 2024
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But let's dig into a couple basics. (please keep in mind I'm making some *very* generalized statements for the sake of simplicity) - The impedance of the cans is not the primary factor that determines how loud it gets. What you want to look at is the "sensitivity" rating (sometimes erroneously called the "efficiency"). This is given as a decibel rating per milliwatt. Every doubling of power gets you +3dB. Power follow the equation P = V²/R (power equals voltage squared over load, in this case the headphone impedance... yeah yeah impedance is complex and changes; let's just ignore that). So we can see that yes high impedance does result in lower power, but it's not the end of the world since if you still have room to increase V then it makes up the difference very quickly due to the squared nature. - We'll also want to consider Ohm's law, this is V = IR (voltage equals current times load). If we fidget with some of the algebra, we can get this *very* broad generalization that high impedance headphones need more voltage and less current, while low impedance cans want more current but less voltage. - All devices with a headphone output do actually have amps built-in, but those are often very small built-in chip solutions and often have very limited voltage and current outputs. If you're trying to crank your music, usually they will hit their current limits before their voltage limit. Pushing out lots of current is what taxes the output devices and *generally* leads to more distortion. - So here's what happens when you stick an amp in between: The amp has a very very high input impedance, usually in the neighbourhood of 50k ohms. From the source's viewpoint, this is a super easy load to drive because that means we can push voltage up and almost no current will flow. The amp circuitry now takes the that nice clean signal we just fed it, amplifies it as needed (probably doesn't even need to), and has substantially larger current buffers so there's no fear of overloading it. - A potential downside to the amps is if there's noise from your source, then that noise will also be amplified. Ideally, your amp should have the lowest gain necessary for you to achieve your desired listening levels. But honestly, this is kind of a non-issue for most people. (someone may bring up the dangers of "double-amping", but ignore the fear mongering... at this level of gear again it's really a non-issue) - To fuzzily answer your second and third question: typically I listen cleanliness. The bass region is the most power hungry, so I listen there for "kick" rather than "rumble". Into the midrange I listen for separation and clean definition between instruments/vocals/whatever else is there. Into the high end it's listening for the "air/shimmer". Basically all the audiophile approved buzzwords, just imagine them and see if things feel more immersive.
So that all said, IEMs generally do not need much in the way of amping. They have super high sensitivities and low impedances. If you do go with an amp, you do not want one with high gain. Current flow will be more important, but alas most specs don't mention current flow and only measure power.
Hmm, it occurs to me this could have gone into older Amp 101 thread. Oh well.