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
The only draw back I saw was that the output impedance is 10 ohms or 30 ohms (it has 2 output jacks) compared to O2's 0.5ohms. This could be looked at as an advantage with the 58x (150 ohm headphone). But with 32 ohm'ish headphones it may sound ever so slightly more sloppy and sluggish (very hard for me to hear those types of things) compared to O2.
I did a quick search on amazon out of curiosity. JDSLABS Objective2 Black Edition By NwAvGuy for $139 got 3.4 stars. Topping A30 HiFi Headphone Amplifier (A30 Silver) for $109.99 got 4.3 stars. Now I didn't do an extensive search so perhaps there's massive negative reviews under another seller for A30 (and/or lots better reviews for O2) but that literally was my first results with actual reviews (searched "Objective 2" for O2 and "A30 amp" for the A30).
As far as quality goes, yeah I would be thinking more about the lowest bid China hand soldered O2s. Mayflower's QC is probably much better. But.. China manufactures a shit ton of amazing electronics so it's hit or miss. It's not all that dissimilar to US manufacturing....
I value the 3 gain options hugely valuable. Just look at how many comments here are asking about what gain option they should get. Granted, these days 6.5x or greater gain is probably way too much but perhaps not, I don't know what everyone everywhere is using.
The portability might be important to some, but if someone is asking for amp to use with an open back headphones I assume he won't be using it while traveling. It's a lot of cumbersome wires to be carrying around as well. It's a neat feature but not useful for many.
The 1/8th rule comes from comes from the limit of what becomes audible to a trained ear. Most of us aren't trained or know what to listen for. But I can respect those wanting the best possible experience.
The OP was asking for pairing with 58x -> 150ohm. 10/150 -> 1/15 well bellow audible. Other audiophiles would argue O2's dampening factor would be too much. Some might actually prefer the 30ohm output 30/150 -> 1/5. Its kind of subjective to what you like. I'd be hesitant to believe any worse dampening actually sounding better to someone -> example 10/32 or worse yet 30/32. which could happen with the A30 if the user unknowingly plugs his low imp headphones into the wrong output.
" As far as quality goes, yeah I would be thinking more about the lowest bid China hand soldered O2s. Mayflower's QC is probably much better. But.. China manufactures a shit ton of amazing electronics so it's hit or miss. It's not all that dissimilar to US manufacturing.... " Yeah, i can say i kinda agree with the sentiments " The portability might be important to some, but if someone is asking for amp to use with an open back headphones I assume he won't be using it while traveling. It's a lot of cumbersome wires to be carrying around as well. It's a neat feature but not useful for many. " I'm just peaking in general, however, if he took your recommendation then needed a protable, and still wanted qulity, he'd have to pickup the 02 then later anyhow ;-) or something very similar. Its a bit of a strectch i think to assume non portable use because of an open back,. i'd assume if he's looking at headphone amps, he probably has numerous models, if i were to guess, and that he probably has alot of applications, like moving around a home.., it's a big deal for Bluetooth receivers to lounge on the couch, and for phones both or walking the dog, are fine for open back portable use. Way more value. " The 1/8th rule comes from comes from the limit of what becomes audible to a trained ear. Most of us aren't trained or know what to listen for. But I can respect those wanting the best possible experience. " No, it's comes from whats necessary to properly dmpen a driver, so that response is not crippled and coloring the music, thats why we buy nice amps after-all, the hear the original material, isnt it? Poor impulse response is highly corruptive, and so is poor dampening., and i suggest you consider the 1/20 rule, as prefferable. Thats hat Benchmark recommends., you know benchmark, benchmark dac? Or do you think you have a better idea than the Benchmark company? For good response it's 1/20 bud, unless you know a ton about the specific driver, because thats the golden rule., ;-) " The OP was asking for pairing with 58x -> 150ohm. 10/150 -> 1/15 well bellow audible. Some might actually prefer the 30ohm output 30/150 -> 1/5. Its kind of subjective to what you like. I'd be hesitant to believe any worse dampening actually sounding better to someone -> example 10/32 or worse yet 30/32. which could happen with the A30 if the user unknowingly plugs his low imp headphones into the wrong output. " 1/15 well bellow audible. ?!?!? how do you know this? Do you have meaurements? " Other audiophiles would argue O2's dampening factor would be too much. " people can argue anything, i'd listen to the respected engineers, for a long time damping factors have been recommended, for good reason. i dont think accuracy in response is subjective at all, and i think people want good quality instruments, not fuzz. ;-) Most credible engineers and companies i'd read in the audio industry recommend good dampening, not gambling around, I think this whole, it might sound "better" if you cripple it, might be a bit of a strech., :P But hey, im not going to say 1.,, im not gonna say the recommendation for an A30 is "not good" just the the value is probably way better with an O2, i'd think, actually. especially considering toppings device failure rates and questionable histories.,, You see how poor their Taishan dac performed at the audiosciencereview forum? People in asia are literally sacred of the nx5, the topping flagship portable amp; for it's frequent failure rates and possibly dangerous battery power circuit. Look around d10, lots of fails. Whats the point of a brand if your going to go willy nilly and do everything? 1 minute terribly performing products, the next saying you got the best(value), but hide figures..,
The Mayflower 02 has more power then those headphones would ever need, so fully satisfies the power spec, by far, and offers support alot more applications, has a much better track record, come with a x10 longer warranty, is made in the U.S.A, and can be used with waaaay more headphones properly, inline with top industry recommendation, in a properly working and consistent implementation, for a solid "reference" for material reproduction. :P But then gain, with the A30 people get to go gambling with under dampening.., What fun. :P