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
If you stare at these graphs long enough you may notice they're quite similar in many ways- like really really similar with k7xx having better looking THD. But... that just might be an outlier sample. Regardless, I'd say k7xx sounds much like the k712. (I don't own k712). The bass "boost" is nothing significant but much appreciated for "reference" headphones. Reference in my mind means accurate reproduction but far from known bass cans.
(rest of post kind of my random thoughts-your question is kind of hard to answer I think as an above average >.> consumer) +3dB bass added to something lacking bass sets it on par with acceptable without destroying the sound. Now where that "3dB" increase is actually applied on the frequency response beats me. The audiphile world is full of mombo jumbo which can be interpreted differently. -> Kind of just marketing.
With that disclaimer said, I'd assume it's evenly applied across bass frequencies but more so around the sub bass. From my understanding, it was "added" by an earpad swap - not a tweak of the driver. The lower the freq, the more work the pad swap did. I'm no material scientist but that's what makes sense to me.
I doubt k7xx has a sound signature similar to m50. I don't own m50. Closed cans can maintain sub bass better-all bass better - as you seem to be aware. Open cans having a "similar shape" (debatable what that means to ppl) to closed cans wouldn't make sense to me.
The distortion is the worst I've seen. Far above 10% distortion using a 100dB 40Hz signal compared to k712 2%'ish distortion 100dB 40Hz signal. Anything above 0.5% is apparently noticeable by well trained ears. So 20% or more in the sub bass is ridiculous. No wonder it sounds muddy to you.
As far as amps go, it depends on what else you're using. I have 2 computers. 1 sounds muddy and screechy w/o amp and the other computer sounds okay but doesn't get super loud. I'd be perfectly happy with comp 2's performance but computer 1 is a no go without an amp.
k7xx doesn't require crazy voltage to drive it (gets loud'ish easily enough because of the low'ish 62 ohms) but it does require a little more current than what cheap amp solutions provide (because of the low'ish ohms and mediocre sensitivity of 105dB/V).
I hate recommending it because I don't own one, but the O2 (objective 2 $75 here on massdrop) amp would probably supply more than sufficient power and clarity for k7xx. If you're looking for a decent DAC to go with it or something else that's a DAC/amp combo, I would be clueless to good inexpensive options. Perhaps others here know more.