[JusticeForAll28]

Hey I was just wondering if anyone has had an experience with these headphones?

 

[lucozade]

No, i have not heard off them .

 

[JusticeForAll28]

bump. Anyone?

 

[Asoundmind]

nope. just saw in stereos in sg for S$109. They really do look quite cool to me. Supposedly to have heavy bass. 

 

[Danneq]

I have listened to the MJ51 veeeeeeeery briefly. That is one of the great things with living in Japan - you can go to an electronics store (preferably Yodobashi or Bic Kamera) and all the headphones sold will be hung on a stand for customers to try out. You can even plug them into your DAP to try them out. I tried out different headphones just for fun about 2 weeks ago. The MJ51 was one of them. I did not focus enough to remember how it sounded. I did prefer the PX100-II (I own the original PX100) and AKG K420 (which I own) and the Koss Porta Pro to the Pioneer. The soundstage was ever so slightly "boxy" (in lack of a better adjective). But the Pioneer did have a better treble response than the others in that cymbals had a stronger presence.
I own the Pioneer SE-EX9 clip-on phones and they should not be too far off from the SE-MJ series. I do like the SE-EX9 but think they are a bit bright and a little bit "boxy" compared to my other phones. However, the brightness can be EQed and you get used to the sound after a few minutes. After listening to the SE-EX9, my PX100 sound very dark and it takes a short while to get into the sound.
 
Anyway, I do not want to scare you from trying the Pioneers out. However, I would suggest that go for the SE-MJ71 instead of the MJ51. They are only a little bit more expensive and the higher the number, the better. 

 
You should be able to find the MJ71 for under $90
 
SE-MJ71 at Audiocubes
 
Some info about the SE-MJ series

 

[CECE]

Hey, i know it's a bit late, i own these headphone at the moment, since more than 2 years now. The story is, i originaly ordered the MJ-5, but the guy from the shop did tell me, that is no longer exist in their shop but the mj51. It was a bit cheaper, about 50$ instead of around 60$. When i first listened, it was horrible... Too bassy with distorted highs, the only normal thing was the mids. But after 50-100 hours of burn-in in moderate volume and now im surpised. Really clear. I own a Creative Aurvana as well, and i can say it's sounds clearer, the only disadvantage is the isolation. I planning to buy a HD 25 1-II, i heard the SP version in a store, and i can say that Pioneer is not too far from that. pretty clear, not to bassy, not too high.
But im a bit curious, that it's can handle 1000mW and on full volume on my sansa clip is so friggin' loud, so i dont know how could this handle the 1000mW...

Hope i could help for those, who may read this article later.