I cancelled my P1 order from Linsoul and got an immediate reply and my money was back in PayPal in 10 minutes. They have two emails and I used both to get a fast response.
Mine just shipped from Linsoul. I really like my M1060C so looking forward to seeing what in ear planar has to offer.
Any particular reason why you cancelled?
And this is what I mean with fast responses. Linsoul and in general big Chinese companies do actually do support pretty well. Probably because the labor is cheap.
for bicycling safely, have u considered an external speaker thats weatherproof?
By the way, huh, Zeos wrote âamp neededâ, but page says Impedance: 20 ohms ?
Also, 124 people clicked the massdrop link⊠wow.
Seriously anyone cycling in headphones needs their head examined! Itâs dangerous enough on the road when you can hear stuff around you.
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I agree with NaV completely!
Just because something has low impedance does not mean it does not need power. That would be like saying a set of speakers that are 8 ohm donât need power because they are 8 ohm.
Really more want to look at sensitivity. The lower the sensitivity the more power it is going to need to get to listening levels.
Sensitivity and ohmâs are measured at 1khz of sound.
As you go higher in frequency or lower. The sensitivity and ohm of the driver changes.
Just as an example on these IEMâs you could be looking at having the sensitivity be say 80db and 60 ohm by the time you reach 20khz.
But the real thing to consider is that you are not producing a constant 1khz square wave or sine wave. You are producing music. Music that has very fast changes between one frequency and another. The more changing and the more range you have, the more power you need to put in to change the speed of the driver faster. Either slowing it down or speeding it up.
So by the time you are playing normal music and having to take into consideration the sound range, you are using astronomically more power to produce sound than a single frequency.
Also take into consideration reduced efficiency curves. To get from 40db to 41 it might take you an extra 1 miliwatt. To get to 42 might take you 1.3 miliwatts. Then 2mw, 4mw, 8mw, 20mw etc etc.
This is a bit of an exaggeration, but it gives you an idea. Sound pressure is not linear with input power.
Hence why these are rated as 5mw. Because they probably need at least 5mw to produce audible music of some level.
However that said. Most likely these are rated completely wrong in the power department.
A typical phone can output 5-10mw from the headphone jack. On the high side 15 or maybe 20 is some rare cases. The fact you canât properly drive these from a phone just means the Max rated power of 10mw for the P1 is absolute nonsense.
Perhaps these are more like 25-30 mw rated and 50 max. thereby putting it in the realm of you need some kind of amp or a half decently powerful DAP. A phone wont cut it. Unless you want to miss out on a good chunk of the top end and part of the low end because you lack the power.
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Agreed. Anything that obstructs your awareness of what is happening around you in a situation where you are very vulnerable, is a terrible idea.
On ear open earphones like the Koss porta pros or the ear clips are one thing. In ear IEMâs that bly their nature block a decent amount of soundâŠabsolutely not.
Jawbone resonators would also probably be fine.
i used to have my headphones off centre from my ears so I could hear music but not suffer any isolation from my environment.
Well Im new to IEM and just got Drops T2 so Im still in the process of figuring it out. I got caught up in the initial hype and jumped too soon not even sure IEMS are for me. Didnât think they would cancel my order but they immediately didâŠPerhaps in a month or so I may reorder after reading more reviews. I may just go over to the dark side and spend some time with cheap Chinese buds!
Weird to me that a tiny little thing like that (IEMs) would require an amp. 
Thatâs the strange world of audiophile gear, I guess. With the Stax running at 500 Volts (or whatever) etc.
The KZ ZS10 Pro are extremely easy to drive and honestly donât benefit much from powering them on anything beyond the iPhone. Just what Iâm looking for in portable IEMs.
Phew. (Bought them without checking).
I didnât even see the July part on there. I thought it said June. Now it makes sense. I cancelled my order and got the NDH20 instead. Shit was that a good idea
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Could someone, please, tell me, if they really lack of strong low frequencies? Because Iâve seen a reviewer, mentioning that they do, especially sub bass. Iâm interested in buying them, but if this is the case it could be a deal breaker for me.
Trust me these arenât even close to the worst offenders for needing an amp for something so small. There are 500 and 600 ohm in ear earphones out there that need monstrous amounts of power.
Staxx are electrostatic. The moment you think static you think hundreds, thousands or millions of volts but at a very very low amperage. A shopping trolley in a super market can shock you with 500-1000 volts easy.
Plus they are kinda earSPEAKERS. So they are just trying to tell you everywhere that âWE NEED POWERâ in an Arnold Schwarzenegger voice.
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The answer is simple. They have planar bass.
Which means itâs fast and accurate. But what it doesnât do is extend bass resonances.
Dynamics tend to extend the bass and make it last just a bit longer or in some situations distort because of how far the drivers film is extended at the time. If it is extended to max already and needs to kick out bass it will distort because it canât go further out. Simply because dynamic drivers canât move anywhere near as fast as a planar driver. Like a bicycle vs a Ducati or something.
So planars can give you bass. It is just going to be more precise and fast to hit with less resonance.
Some say it is less fun. I will in some cases agree with that. It can be less fun. But if it is between hearing the music the way it was created vs messing with it just a bit and making it different (the exceptions out there being dynamics tailored to be less like that. Hd600, Neumann etc), the I would choose planar in that case. If I donât want to hear all the detail that the fast driver will give. Then a pair of dynamics will sooth.
What I will say is if the music you listen to has that bass recorded into it. It will be fine. Because the planars will reproduce that. But the bass that is just a result of resonance and driver position at the time. No a planar will not do that.
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My pair of P1 has been picked up by courier. (Patiently waiting for their arrival.)
Thnx! Nice description. Mostly I listen to music played with analog instruments, âblackâ labels, as funk, reggae, dub, jazz, blues and too much loungy fusion of these genres with many electronic elements, some hard rock and australian independent scene and much deep house from electronic music. So, as you realize, I love bass, especially sub bass, but in no way heavy bass sound. Thatâs why Iâm asking, because I owned the Fostex t50rp, slightly moded, and I sold them, since I didnât enjoy the bass extension so much, although the overall sound was amazing. Fiio FH5 and T2âs with the vents covered really ROCK!
No problem at all. Glad to help.
I think based on what type of bass you like and the fact you didnât like the modified t50rp (that is kinda a weird outlier for planar once modified. Especially if you are doing any of the driver mods with putty etc. They really add quite a bit of bass).
I think you should enjoy the P1âs (possibly with the vent closed. Same story as the T2âs on that end.)
The P1âs should give you the clarity in the mids and highs you want for jazz, blues and electronic. While keeping the bass controlled, clean and speedy in a way the t50rp for you failed in.
But as with all things you wonât 100% know until you try it out. If you get them give them a few days of listening and see if they do it for you. If they donât I can guarantee there will be plenty people wanting a quick pair in the next few weeks.
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You should look at both.
For multiple reasons it seem.
To begin with to increase the loudness by 3 dB one typically assume twice as much power is needed.
You can calculate the voltage needed for a specific amount of power by power = voltage^2/impedance.
Hence voltage would be sqrt(power*impedance) and as you can see there whatever you need twice the amount of power due to 3 dB less sensitivity or have twice the impedance headphones the end result will be the same.
This text: https://blog.son-video.com/en/2016/08/understanding-the-impedance-and-sensitivity-of-audio-headphones/
Also mention output and input impedance and how a difference between them result in a greater power loss. As for why that is I donât know.
The current would be sqrt(power/impedance), so it seem it doesnât matter whatever impedance is twice as much or sensitivity 3 dB less there either. Though I may have made some sort of mistake. And the output and input impedance I donât know of but it seem like there if anything higher impedance is worse.
So sensitivity is important but not more important. But just using either doesnât tell anything.
Lots of other headphones are more sensitive, then again the DT 990 250 ohm is also 96 dB sensitivity but 250 ohm so thatâs just harder to drive.