Mitchell & Johnson MJ2 Headphonessearch

Mitchell & Johnson MJ2 Headphones

Mitchell & Johnson MJ2 Headphones

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Lol these are real electrostats, not those mjs
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Btw i sold the mj1s
Thanks...good to know!
For potential buyers in Norway, Sweden or Finland. Head over to moetaudio.com, they have these 25% off.

Have a pair of these myself, and they are absolute beasts! Give them about 100-150 hours run in, and they cant be beaten in this pricerange!
I am confused. From reading the specifications it seems there are actually two drivers. One electrostatic, and one 40mm dynamic. So, is this some kind of hybrid or am I missing something?
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Yes it is true that dynamic drivers are slower than electrets/electrostatics. But, they are using the slower dynamic driver to play the bass notes (which are slower). This concept has been used in many home speakers. Check out Martin Logan. The trick, as you mentioned, is to meld the two driver's into a coherent sound. The Mitchel & Johnson do a very good job of this.

The dynamic driver advantage is the amount of impact the bass has. Electrets/electrostats can't move much air in the bass frequencies. Look how panels are built - tightly stretched like a drum head. A dynamic driver can move back and forth much more. The only way for the electret/electrostat to make up for the shortfall, is to use a much larger panel. There are limits for what people will wear on their head.

Most of the electrostatic home speaker manufacturers advertise their hybrid speakers as electrostatic. It is the more expensive tech.

I agree that the Mitchell & Johnson don't sound exactly like $2000 Stax. But, the Stax I've heard are open back. These are closed. The MJ can be enjoyed in noisy environments. That is important since they are designed for listening on the go. enjoyed

No technology or product can do everything. The MJ2 give us a different choice. Just like the hybrid trend of adding balanced armature drivers to dynamic in ear monitors.

The MJ2 are nice sounding headphones. They do require break in. Don't even try to judge them without break in. Even though they are very efficient to drive, not every phone or dap can control the dynamic bass driver. Like most "speakers" they do better with better equipment.
Barondla
I understand what you're saying but there is one bone of contention in that bass frequencies are not necessarily slower as sound travels at the same speed regardless of frequency. However the mass of a driver designed to reproduce bass is usually higher and therefore it reacts, and recovers, much slower. That's why speaker designers who plan to marry a dynamic woofer with a planar or electrostatic mid and tweeter, try to build low frequency drivers that are really rigid, with as low a mass as possible. As a bass player, a Martin Logan owner as well as a Magnepan owner and recording engineer, I know that the bass is not slower. Gale Saunders of ML says he has to cheat a bit in the crossover network, to get his hybrid's woofers to work well with the electrostatic mid/high drivers. On the other hand the Maggies are planar drivers throughout with plenty of bass output due to the larger area devoted to reproducing lower frequencies. Hence the drivers being of the same material, and driven uniformly, are equally as fast and you will hear those parts of the bass frequencies that are anything but slow. In other words, you will hear the detail and definition of the bass notes.

Even standard cone speakers have the problem of differences in the mass of the drivers, the smaller tweeter being quicker reacting than the woofer. Bottom line: any perceived slowness in bass reproduction is more due to reaction time of the higher mass woofer than the actual bass frequencies themselves.
Please try actual electrostatic headphones. Like stax. B4 buying. Cause these doesnt sound anything like electrostats
damien_chung
Just checking...assuming you own the MJ2's and some electrostatic cans (Stax?). If so, it'd be helpful to know which model(s) you own and for you to write up a brief comparison to the MJ2's. Thanks!
Lol. M&J must never had heard electrostatic headphones. These pair are terrible
I'm new to the world of high-end headphones. What size cable plugs will work with MJ2 and Callio DAC?
My MJ2 is just arrived. For potential buyers outside USA a warning ! You have to pay Custom duties and VAT ! That was a disapointment because my Matrix HPA3B headphone amp. from Massdrop was without Custom duties and VAT. Still an attractive price but not more a steal.
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All I can find is you're saying you are disappointed there was a VAT tax
hhopmann
Never mind, I see it. Sounds like they are not anything special
Electret drivers aren't new; Audio-Technica made a pair some years ago, along with an adapter box. Electrets are somewhat higher-mass, so their "transient" behavior isn't quite as good. There are also self-energizing electrostatic headphones (such as the original Koss ESP-6). These might require more power than dynamic 'phones, but not special amplification is needed.
Is there any measurements? I usually look at the ones on Inner Fidelity but he hasn't done it for MJ2.

Measurements = reality.
David Choy of Triton Audio Cables has found the solution for making a balanced cable for these cans, no need to plug the original cable in and out. I had mine made recently.
I would really like clarification from MJ about how the stock cable is wired at the headphone cup. There is no mention on the MJ website about the cable; they don't even state the length of the cable. Massdrop only quotes what the manufacturer tells them and doesn't provide any specs about the cable. The only way I learned that the cable may not be wired in the 'normal' manner on the cup end is thru reading reviews and reading here in this discussion. I sent an email to MJ Sunday night asking for clarification and a wiring diagram but have not received a response. I have some aftermarket cables that I either made or purchased and I would like to know if they will work with the MJ2 when I receive it.

I don't understand what MJ was trying to accomplish with their cable that supposedly allows you to plug the cable into the cups without worrying about which plug is left or right and still have the proper channels connected. Someone said the idea is that you can plug the cable in in the dark and not have to worry that the channels are correct and not possibly reversed. But the phones themselves are labeled L and R, so you would have to be able to see the phones before you put them on to get them properly oriented. So it seems to me you would orient the phones and orient the cables that should also be marked L and R and then you can turn out the lights and all is well. It seems to me that MJ was trying to address a 'problem' that really doesn't need to be addressed with their unorthodox cable wiring.

So, if the stock cable is wired as stated in the post below with the L channel as tip/sleeve and the R channel as ring/sleeve, then no aftermarket cable is going to work. You will need to have a cable wired only for the MJ2. It may be possible to open up the cups and rewire the wires from the connector to the drivers to match your cable but I hope that's not the case. Maybe someone here who already has the MJ2 and has only used the stock cable can check the continuity from the cup connectors to the amp plug and tell us how the cable is wired. Would be nice to know this before the phones arrive so I can possibly be prepared with a balanced cable using a 4-pin Neutrik connector on the amp end.

Of course it would be ideal if MJ would respond and clarify this. As I said above, an email to them thru their website asking for clarification4 days ago has not elicited a response.
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dpump
I know nothing about these headphones, but the monoprice M560 has a design that sounds like what might be used here: the cable is a y-cable with identical stereo plugs going to both cups. The left cup only plays the left channel, and the right cup only plays the right channel. So it doesn't matter which plug goes to which cup -- you could do it in the dark.

You could still make a balanced cable for a headphone that is wired this way, but you would have to mark the cable L and R, since there the two channels do not share a common ground.
HappyMax
That's right. You only have to pay attention at the earcups. Left earcup at the left ear and right earcup at the right ear and it's automatic ok !